Jurnal Praktik Keinsinyuran
type: channel
description: Jurnal Praktik Keinsinyuran memuat artikel hasil aktivitas praktik keinsinyuran dari berbagai bidang keilmuan teknik. Bidang praktik bidang keinsinyuran sesuai dengan yang diatur pada pasal 5 ayat (1) UU Keinsinyuran. Artikel yang ditulis merupakan artikel yang orisinal, ditulis dalam Bahasa Indonesia atau Bahasa Inggris. Artikel ditulis dengan penyajian pendahuluan, metode pelaksanaan, hasil dan pembahasan, kesimpulan dan saran, ucapan terima kasih, serta daftar pustaka.
publisher: Program Studi Profesi Insinyur Universitas Katolik Indonesia Atma Jaya
language: en
publication name: Jurnal Praktik Keinsinyuran
issn: 3063-7449
items: Analisa Tegangan Pipa untuk Kebutuhan Reverse Engineering Pipa Penyalur
items: Analisis Strategis Poros Penggerak Listrik Terintegrasi dalam Peningkatan Kemampuan KRI
items: Pengaruh Beban Sealer Terhadap Baut Penekan Mesin Sachet Akash
items: Penilaian Perpanjangan Sisa Umur Layan (Residual Life Assessment) Pressure Vessel Menggunakan Metode Fitness For Service
items: Pemodelan dan Simulasi Proses Flash Separation Condensate untuk Optimasi RVP Produk CPF Lapangan-X
items: Penerapan Kaizen System Untuk Efisiensi Pekerjaan Galian Batu Pada Proyek Relokasi Jalan Masyarakat Terdampak Bendungan Bolango Ulu PT. Bumi Karsa
items: Comparison for Assessment of Pipeline Integrity with ASME B31.8 and ASME B31.G
items: Proyek Implementasi Instalasi Kelistrikan pada Usaha Mikro
items: Pigging Operation on a Propylene Transfer Pipeline
items: Evaluasi Indeks Polaritas (PI) sebagai Indikator Keandalan Isolasi Kabel pada Sistem Pressurized Fan di Gedung Bertingkat PT XYZ
items: Analisa Risiko Keselamatan dan Kesehatan Kerja (K3) Menggunakan Metode HIRADC Pada Pekerjaan Penggantian Trafo 3 GIS Penggilingan
items: Evaluasi Kontraktual dan Dampak Operasional dari Suspension dan End of Suspension dalam Proyek Data Center
items: Individual Test pada Automatic Transfer Switch sebelum dilakukan Energize
items: Optimalisasi Konsumsi Energi Kompresor Melalui Otomatisasi Valve Pneumatik Pada Lini Pengeringan Galon 19L
items: Uji Fungsi Watertube Boiler Takuman N-600 SA Superheater Kapasitas 20 Ton Uap/Jam pada Pabrik Minyak Kelapa Sawit
items: Kegagalan Beton Akibat Campuran Air Berlebih
items: Rancang Bangun Cokelat 3D untuk Cinderamata Perusahaan
items: Penerapan Kaizen System Untuk Efisiensi Pekerjaan GalianBatu Pada Proyek Relokasi Jalan Masyarakat TerdampakBendungan Bolango Ulu PT. Bumi Karsa
items: Strategi Optimalisasi Manajemen Proyek Infrastruktur Energi Terbarukan untuk Meningkatkan Ketepatan Waktu dan Kualitas Instalasi
items: Evaluasi Perpanjangan Umur Pakai Overhead Crane Menggunakan Pedekatan Fatigue Life
items: Implementasi Warehouse Management System (WMS) untuk Meningkatkan Kinerja Warehouse pada Perusahaan Otomotif
items: Perspektif Grup Proses Manajemen Proyek pada Implementasi Smart Parking System di UKSW
items: Pembangunan Gardu Induk 150 kV Lautan Baja Indonesia
items: Penerapan Value Engineering dalam Kontrak FIDIC untuk Efisiensi Biaya oleh General Contractor
items: Perancangan Solusi Retrofit Sistem Otomasi dengan Analytic Hierarchy Process (AHP): Pendekatan Multi-Kriteria Berbasis Kebutuhan Operasional dan Rancangan Engineering
items: Penggunaan CTF-9A Admixture Tambahan sebagai Optimasi pada Produksi Beton Pracetak (Studi Kasus pada Produksi Tiang Pancang/Spun Pile)
items: Analisis Batuan Andesit Sebagai Bahan Konstruksi Jalan Di Daerah Pringgabaya Lombok Timur Nusa Tenggara Barat
items: Penilaian Perpanjangan Sisa Umur Layan (Residual Life Assessment) Storage Tank Berdasarkan Pengurangan Ketebalan (PT Studi Kasus: Pertamina EP OGT Field)
items: Analisis Kebutuhan Automated Guide Vehicle (AGV) untuk Efisiensi Operasional Gudang di PT. XYZ
items: Analisis Kinerja Solar Charge Controller Menggunakan Thyristor dengan Sumber Energi Hibrida

Analisa Tegangan Pipa untuk Kebutuhan Reverse Engineering Pipa Penyalur
type: item
description: This study aims to evaluate the structural integrity of the piping system and optimize its design. The method began with the collection of actual data from piping system which was then input for modeling and simulation using AutoPIPE software. Analysis which was done: calculating stress due to sustained loads (internal pressure, pipe/fluid weight) and occasional loads (earthquakes), as well as examining the forces on the pipe and supports, displacement, and rotation of the pipe. Initial results indicated high stress (ratio above 1.0) under the combined sustained and earthquake loads, indicating that the initial design does not meet safety standards. As a solution, additional pipe supports at critical points were recommended. By adding appropriate supports, the stress on the pipe due to the combined sustained and earthquake loads was successfully reduced to the design code's allowable limits. This was very effective in improving the safety and compliance of piping systems with standards, reducing the risk of failure, and ensuring stable operation.
subject: Articles
  topic: section
subject: Pipeline
  topic: keywords
subject: Support
  topic: keywords
subject: Pipe Stress
  topic: keywords
subject: Autopipe
  topic: keywords
creator: Sigit Marseno
creator: Yanto
rights: Copyright (c) 2025 Jurnal Praktik Keinsinyuran
date: 2025-11-12
publication date: 2025-11-12
starting page: 477
ending page: 486
doi: 10.25170/jpk.v2i04.7304

Analisis Strategis Poros Penggerak Listrik Terintegrasi dalam Peningkatan Kemampuan KRI
type: item
description: This study analyzes the advantages and challenges of using an Integrated Electric Propulsion System on the Republic of Indonesia Warship (KRI) using a qualitative descriptive approach. Data were collected through literature studies in the fields of defense and marine technology. The results of the study indicate that this system offers significant improvements in maneuverability, speed, and noise and vibration reduction, which are very important in the context of military operations. Although there are challenges related to high initial costs and more complex maintenance requirements, the long-term benefits of energy efficiency and reduced operational costs make this system a strategic choice for the Indonesian Navy. Thus, the implementation of an integrated electric drive shaft not only increases the combat readiness of KRI, but also strengthens Indonesia's position as a competitive maritime power in the region. This study is expected to provide recommendations for the development of a more modern and adaptive defense policy to global technological developments.
subject: Articles
  topic: section
subject: Energy Efficiency and Maneuve
  topic: keywords
subject: KRI
  topic: keywords
subject: Integrated Electric Propulsion System.
  topic: keywords
creator: Maswir
creator: Djoko Setyanto
rights: Copyright (c) 2025 Jurnal Praktik Keinsinyuran
date: 2025-11-12
publication date: 2025-11-12
starting page: 487
ending page: 496
doi: 10.25170/jpk.v2i05.7025

Pengaruh Beban Sealer Terhadap Baut Penekan Mesin Sachet Akash
type: item
description: This study investigated the effect of sealing load on the pressing bolts of the Akash sachet machine used at PT Unilever Indonesia. Using Fuji film as a pressure indicator, the pressure distribution on the sealing surface was analyzed and converted into quantitative force data. Subsequently, we calculated the load received by each bolt and compared it to the maximum tensile strength of the bolts through tensile testing. The results showed that the load applied to each bolt is well below the material's yield strength, confirming the bolts’ capability to perform safely and reliably under operational conditions. These findings provided insight into optimizing sealing performance and ensuring the mechanical reliability of the machine.
subject: Articles
  topic: section
subject: Sachet Machine
  topic: keywords
subject: Sealer
  topic: keywords
subject: Bolt
  topic: keywords
subject: Load Analysis
  topic: keywords
subject: Pressure Testing
  topic: keywords
creator: Rohmadi Wibowo
creator: Yanto
rights: Copyright (c) 2025 Jurnal Praktik Keinsinyuran
date: 2025-11-12
publication date: 2025-11-12
starting page: 511
ending page: 518
doi: 10.25170/jpk.v2i05.7023

Penilaian Perpanjangan Sisa Umur Layan (Residual Life Assessment) Pressure Vessel Menggunakan Metode Fitness For Service
type: item
description: Residual life assessment (RLA) is a crucial step to ensure the reliability, safety, and operational efficiency of equipment that has exceeded its design life or shows signs of aging. This study was conducted on the Gathering Station (GS) VI Talang Jimar, owned by PT Pertamina EP Zone 4 Field Prabumulih, with the aim of evaluating the current condition of the equipment, estimating the remaining operational life, and providing recommendations regarding necessary maintenance or replacement actions. The Risk-Based Inspection (RBI) method and the Reliability Block Diagram (RBD) approach were used in this analysis to map risks, evaluate system reliability, and provide accurate estimates of the remaining life. Data were obtained through visual inspection, process verification, thickness measurements, non-destructive testing, dimensional measurements, and material analysis. The analysis results show that some equipment requires special attention regarding structural and operational integrity.
subject: Articles
  topic: section
subject: Residual life assessment
  topic: keywords
subject: Reverse Engineering
  topic: keywords
subject: Reliability Block Diagram
  topic: keywords
subject: Risk-Based Inspection
  topic: keywords
subject: Gathering Station (GS) VI Talang Jimar
  topic: keywords
subject: Operational Safety
  topic: keywords
creator: Arvan Anur
creator: Hotma Antoni Hutahaean
rights: Copyright (c) 2025 Jurnal Praktik Keinsinyuran
date: 2025-10-30
publication date: 2025-10-30
starting page: 373
ending page: 383
doi: 10.25170/jpk.v2i04.7016

Pemodelan dan Simulasi Proses Flash Separation Condensate untuk Optimasi RVP Produk CPF Lapangan-X
type: item
description: This research aims to optimize flash drum operating conditions at Field-X Central Production Facility (CPF) with a condensate production capacity of 50 barrels per day (bpd). Simulations were conducted using DWSIM software version 8.8.1 with the Peng-Robinson thermodynamic model, varying pressure (5, 10, 15, 20 psig) and temperature (50, 55, 60, 65, 70°C). Simulation results indicate that pressure increases at constant temperature enhance condensate flow rate, while temperature increases reduce RVP values but increase energy requirements. At 5 psig pressure and 50°C temperature, optimal performance was achieved with an RVP of 10.33 psia and an efficiency ratio of 10.30 bpd/kW. However, gravity flow design considerations led to the selection of 10 psig pressure with operating temperatures of 60-65°C. This study provides operational recommendations that balance product specifications, energy efficiency, and system technical constraints.
subject: Articles
  topic: section
subject: condensate
  topic: keywords
subject: flash separation
  topic: keywords
subject: pressure
  topic: keywords
subject: RVP
  topic: keywords
subject: Temperature
  topic: keywords
creator: Alpi Nurjani
creator: Yanto
rights: Copyright (c) 2025 Jurnal Praktik Keinsinyuran
date: 2025-11-11
publication date: 2025-11-11
starting page: 460
ending page: 466
doi: 10.25170/jpk.v2i04.7007

Penerapan Kaizen System Untuk Efisiensi Pekerjaan Galian Batu Pada Proyek Relokasi Jalan Masyarakat Terdampak Bendungan Bolango Ulu PT. Bumi Karsa
type: item
description: Alternating current electricity is commonly transmitted in two ways, single phase and three phase. Three phase is commonly used in industrial settings for manufacturing lines meanwhile single phase load are powered by tapping one of the three available phases. This research delves into installation of an Automatic Transfer Switch to provide redundant single phase supply using two ATS units wired in a way to automatically tap into any active one phase out of the three phase supply. The result is that dual ATS system is capable of providing single phase electricity as long as there is one active phase out of the three phase supply.
subject: Articles
  topic: section
subject: Automatic Transfer Switch
  topic: keywords
subject: Pemilihan fasa
  topic: keywords
creator: Christopher Clifford
creator: Melisa Mulyadi
rights: Copyright (c) 2025 Jurnal Praktik Keinsinyuran
date: 2025-11-05
publication date: 2025-11-05
starting page: 431
ending page: 438
doi: 10.25170/jpk.v2i04.6980

Comparison for Assessment of Pipeline Integrity with ASME B31.8 and ASME B31.G
type: item
description: Integrity assessment is a critical process in the oil and gas industry to prevent pipeline failures such as leaks or ruptures. This study evaluates a gas pipeline's integrity using two assessment methodologies: the conventional design code (ASME B31.8) and the defect-specific method (ASME B31G). An in-line inspection (ILI) conducted in June 2024 revealed the maximum corrosion depth with a depth-to-thickness ratio (d/t) of 0.35. The design code assessment classified the pipeline as potentially unsafe due to wall thickness falling below the minimum requirement. In contrast, the ASME B31G assessment showed the pipeline could safely withstand the design pressure. The comparison highlights the conservative nature of design codes and underscores the importance of defect-specific assessment in accurately determining residual life and optimizing maintenance strategies.
subject: Articles
  topic: section
subject: pipeline integrity
  topic: keywords
subject: corrosion defect
  topic: keywords
subject: ASME B31.G
  topic: keywords
subject: ASME B31.8
  topic: keywords
creator: Marcelleus Mario
creator: Hadi Sutanto
rights: Copyright (c) 2025 Jurnal Praktik Keinsinyuran
date: 2025-09-17
publication date: 2025-09-17
starting page: 297
ending page: 301
doi: 10.25170/jpk.v2i03.6982

Proyek Implementasi Instalasi Kelistrikan pada Usaha Mikro
type: item
description: Street coffee carts, as a form of micro-enterprise, often rely on 3-kg LPG gas and power banks to support their operations, particularly for lighting and water heating. However, this system has limited energy capacity and poses high safety risks. This report discusses the implementation of an alternative electrical system that is safer and offers more functionality by using a 12V car battery and a 1000W inverter as the energy source. The new system replaces the use of 3-kg LPG gas and power banks for powering heaters and LED lights, while still prioritizing Occupational Health and Safety (OHS) aspects. The analysis shows that the new design can provide a greater electricity supply (up to 720 Wh), allowing LED lights to operate for 11 hours and electric heaters for more than one hour. In addition, the system reduces the risk of fire caused by gas leaks and short circuits from wiring. This study demonstrates that a simple engineering approach can offer practical, efficient, and safe solutions for micro-entrepreneurs in urban environments.
subject: Articles
  topic: section
subject: micro-enterprise
  topic: keywords
subject: street coffee cart
  topic: keywords
subject: 12V battery
  topic: keywords
subject: work safety
  topic: keywords
creator: Veronica Windha Mahyastuty -
creator: Lanny M.M. Panjaitan
creator: Eko Prasetyo Nugroho
creator: Gilbert Tanaputra Gunawan
creator: Bryan Setiaputra
rights: Copyright (c) 2025 Jurnal Praktik Keinsinyuran
date: 2025-11-24
publication date: 2025-11-24
starting page: 541
ending page: 552
doi: 10.25170/jpk.v2i05.6974

Pigging Operation on a Propylene Transfer Pipeline
type: item
description: In oil and Gas, pipelines are commonly used to transport hydrocarbons or products inland due to their efficiency and safety. It can operate 24 hours, 7 days without interruption, which is crucial for a continuous operation. Compared with trucking or rail transport, pipelines have lower operating and maintenance costs for bulk transportation. And as most pipelines will go underground, it provides safer operation by minimizing interaction with the public. Building a pipeline infrastructure requires a comprehensive process of planning, designing, procurement, construction up to the commissioning. One of the critical steps of the pipeline construction is conducting pigging, which can ensure cleanliness, dryness, and verify the pipe gauge and thickness. This will ensure safe operation of a pipeline. This article presents a case study of the pigging operation in a pipeline for propylene transfer stretch for approximately 4.1 km.
subject: Articles
  topic: section
subject: Pig
  topic: keywords
subject: Pigging
  topic: keywords
subject: Pipeline
  topic: keywords
subject: Propylene
  topic: keywords
creator: Apriadi Bunga
creator: Yanto
rights: Copyright (c) 2025 Jurnal Praktik Keinsinyuran
date: 2025-11-12
publication date: 2025-11-12
starting page: 497
ending page: 503
doi: 10.25170/jpk.v2i05.6961

Evaluasi Indeks Polaritas (PI) sebagai Indikator Keandalan Isolasi Kabel pada Sistem Pressurized Fan di Gedung Bertingkat PT XYZ
type: item
description: The reliability of electrical systems and mechanical equipment, such as Pressurized Fans is critical for ensuring safety and operational continuity in high-rise buildings, particularly in emergency stairwells. This study focuses on Polarization Index (PI) testing to evaluate cable insulation conditions in Pressurized Fan at PT XYZ. The methodology includes initial functional testing, literature review, automated control panel design, and system performance evaluation. Test results revealed that while insulation resistance (IR) values met standards (>25 MΩ), low PI values (<1.0) indicated insulation degradation, causing frequent tripping of the Pressurized Fan. The implemented solutions involved replacing the cable installation and designing a more reliable control panel. Post-improvement, the system operated optimally and complied with safety standards such as SNI 03-1746-2000 and NFPA 92A. This study highlights the importance of preventive maintenance through regular PI testing to prevent system failures and ensure building occupant safety.
subject: Articles
  topic: section
subject: Polarization Index
  topic: keywords
subject: Pressurized Fan
  topic: keywords
subject: Insulation Test
  topic: keywords
creator: Arifin Hidayat
creator: Maria Angela Kartawidjaja
rights: Copyright (c) 2025 Jurnal Praktik Keinsinyuran
date: 2025-09-15
publication date: 2025-09-15
starting page: 275
ending page: 284
doi: 10.25170/jpk.v2i03.6928

Analisa Risiko Keselamatan dan Kesehatan Kerja (K3) Menggunakan Metode HIRADC Pada Pekerjaan Penggantian Trafo 3 GIS Penggilingan
type: item
description: The replacement work of Transformer 3 at the GIS Substation in Penggilingan carries a high level of risk to occupational health and safety (OHS), necessitating a systematic approach to identify and control potential hazards. This study applies the HIRADC method (Hazard Identification, Risk Assessment, and Determining Control) to assess risks across 17 stages of work activities. The assessment results show that 53% of activities fall into the high-risk category, 23.5% into medium risk, and 23.5% into low risk. The main hazards identified include exposure to high-voltage electricity, heavy load handling, confined working spaces, and exposure to SF₆ gas. Risk control measures were implemented based on the hierarchy of controls, starting from elimination, substitution, engineering controls, administrative controls, and the use of personal protective equipment (PPE). The application of the HIRADC method proved effective in formulating risk mitigation strategies and improving safety standards, particularly in high-voltage electrical work environments such as GIS substations.
subject: Articles
  topic: section
subject: HIRADC
  topic: keywords
subject: K3
  topic: keywords
subject: TRAFO
  topic: keywords
subject: Gis
  topic: keywords
creator: Andri Wardana Rkt
creator: Jimmy Chandra
rights: Copyright (c) 2025 Jurnal Praktik Keinsinyuran
date: 2025-11-07
publication date: 2025-11-07
starting page: 449
ending page: 459
doi: 10.25170/jpk.v2i04.6925

Evaluasi Kontraktual dan Dampak Operasional dari Suspension dan End of Suspension dalam Proyek Data Center
type: item
description: Temporary suspension in construction projects can significantly impact project execution in terms of time, cost, risk, and productivity. This study evaluates the contractual and operational aspects of suspension and end of suspension in the Data Center project at KIIC Karawang. The analysis is based on contract documents, interviews, and field observations. Findings indicate that while the suspension is contractually valid, its impacts require well-planned mitigation and restart strategies. Recommendations are provided concerning remobilization procedures, claims, and post-suspension risk management. The study contributes to the understanding of suspension impacts in high-risk construction environments and emphasizes the necessity of contractual flexibility and proactive project controls during critical disruptions. The findings are expected to benefit not only contractors and project managers but also policymakers and stakeholders involved in the formulation of contractual frameworks for critical infrastructure projects. By providing a comprehensive overview of the practical and legal considerations during suspension phases, this study can serve as a reference for future project planning and risk management strategies.
subject: Articles
  topic: section
subject: suspension
  topic: keywords
subject: construction
  topic: keywords
subject: contract, productivity
  topic: keywords
subject: Data Center
  topic: keywords
creator: Githa Kartika
creator: Ronald Sukwadi
rights: Copyright (c) 2025 Jurnal Praktik Keinsinyuran
date: 2025-09-22
publication date: 2025-09-22
starting page: 311
ending page: 316
doi: 10.25170/jpk.v2i03.6922

Individual Test pada Automatic Transfer Switch sebelum dilakukan Energize
type: item
description: Automatic Transfer Switch (ATS) is a very important device in a building, especially a data center building. ATS functions to maintain uninterrupted current flow, both primary (PLN) and secondary (Genset). Considering the importance of the ATS device, an individual test must be carried out before energize. The function of this test is to make sure it’s reliability of the ATS device. The Visual Inspection methodology verifies the completeness of ATS identity before installation. The Insulation Resistance Test verifies that phase-to-phase and phase-to-ground insulation remains above the prescribed minimum threshold. The Contact Resistance and Continuity Test are essential in diagnosing the quality of electrical connections and circuit pathways, preventing excessive resistance variations that may lead to equipment failure or operational hazards. The Current Transformer Test serves to validate load detection accuracy. Lastly, the Torque Verification procedure ensures the mechanical robustness of terminal connections. The findings provide a foundation for preventive maintenance strategies and offer recommendations for enhancing the long-term reliability of ATS systems within data center infrastructures. The testing procedures are conducted in accordance with both national and international standards, such as SNI, PUIL, ANSI/NETA, IEC, and NFPA.
subject: Articles
  topic: section
subject: Automatic Transfer Switch
  topic: keywords
subject: ATS
  topic: keywords
subject: individual test
  topic: keywords
creator: Rahmat Pratopo
creator: Melisa Mulyadi
rights: Copyright (c) 2025 Jurnal Praktik Keinsinyuran
date: 2025-11-03
publication date: 2025-11-03
starting page: 384
ending page: 398
doi: 10.25170/jpk.v2i04.6921

Optimalisasi Konsumsi Energi Kompresor Melalui Otomatisasi Valve Pneumatik Pada Lini Pengeringan Galon 19L
type: item
description: This engineering practice project is designed to improve energy efficiency by modernizing the drying process in the 19-liter gallon packaging line within a Bottled Drinking Water (AMDK) facility. Traditionally, the drying system operated by continuously releasing compressed air at high pressure, regardless of whether a product was present, leading to substantial energy waste. To mitigate this inefficiency, a low-cost automation system was deployed, integrating inductive proximity sensors with pneumatic solenoid valves. These components enable airflow to be activated only when a gallon is detected at the drying station, thereby eliminating unnecessary energy discharge. Quantitative evaluations reveal that this system effectively reduces compressor operating hours and lowers daily energy consumption. The monthly cost savings amount to IDR 3,070,553, equivalent to annual savings of approximately IDR 36,846,640. The system requires minimal capital investment, with a calculated payback period of less than 24 hours. In addition to its financial benefits, the solution promotes operational reliability, reduces compressor wear, and aligns with sustainable industrial practices. Its simplicity and affordability make it highly replicable for similar pneumatic systems across various manufacturing settings.
subject: Articles
  topic: section
subject: energy efficiency
  topic: keywords
subject: pneumatic system
  topic: keywords
subject: compressor optimization
  topic: keywords
subject: industrial automation
  topic: keywords
subject: AMDK
  topic: keywords
creator: Ricky Sinaga
creator: Melisa Mulyadi
rights: Copyright (c) 2025 Jurnal Praktik Keinsinyuran
date: 2025-11-12
publication date: 2025-11-12
starting page: 504
ending page: 510
doi: 10.25170/jpk.v2i05.6919

Uji Fungsi Watertube Boiler Takuman N-600 SA Superheater Kapasitas 20 Ton Uap/Jam pada Pabrik Minyak Kelapa Sawit
type: item
description: At the palm oil factory, steam becomes a primary need; besides driving turbines, steam is also required for other processing stations. Boiler inspection is a comprehensive process of checking and testing the boiler to ensure it is safe, efficient, and meets applicable safety standards. The tests carried out on the Watertube Boiler Takuma N-600 SA are the hydrostatic test and the steam test. The pressure tested in the hydrostatic test is 23 kg/cm². After performing slow firing (gradual combustion), the steam test is conducted to ensure that the safety valves function properly. The first safety valve opens at a pressure of 21 kg/cm², and the second safety valve opens at a pressure of 22 kg/cm². The conclusion of the hydrostatic test is successful with parameters showing no leaks on the expansion and welding of the watertube, and the steam test is successful where the safety valves function correctly.
subject: Articles
  topic: section
subject: Hydrostatic Test
  topic: keywords
subject: Safety Valve
  topic: keywords
subject: Inspection Test
  topic: keywords
subject: Steam Test
  topic: keywords
subject: Water Tube Boiler
  topic: keywords
creator: Muhammad Yusuf
creator: Djoko Setyanto
rights: Copyright (c) 2025 Jurnal Praktik Keinsinyuran
date: 2025-11-12
publication date: 2025-11-12
starting page: 519
ending page: 524
doi: 10.25170/jpk.v2i05.6903

Kegagalan Beton Akibat Campuran Air Berlebih
type: item
description: The study examines structural cracks in a multi-story concrete building caused by excessive water in the mix. Using visual inspection., UPV testing, and core drilling, it was found that high water-to-cement ratios reduced concrete strengh, with actual values failing to meet design targets (fc’ 30 and 35 MPa). The issue was worsened by addtional on-site water added during casting. The results higlight the need for strict control over concrete mix design.
subject: Articles
  topic: section
subject: Concrete crakcs
  topic: keywords
subject: Excess water
  topic: keywords
subject: Compressive strength
  topic: keywords
subject: UPV
  topic: keywords
subject: Core test
  topic: keywords
creator: Dodi Mardotillah
creator: Jimmy Chandra
rights: Copyright (c) 2025 Jurnal Praktik Keinsinyuran
date: 2025-10-03
publication date: 2025-10-03
starting page: 342
ending page: 354
doi: 10.25170/jpk.v2i04.6900

Rancang Bangun Cokelat 3D untuk Cinderamata Perusahaan
type: item
description: One of the media can be used to improve customer’s brand recognition is souvenirs which depict the company's identity. Unique and interesting souvenirs will make a special impression on consumers. PT Panasonic Gobel Indonesia (PGI) is currently planning to create unique souvenirs for both company guests and employees. This souvenir is planned to be made of chocolate using the company logo. The problem in the plan to make this souvenir is the need for several alternative souvenirs in 3D or 2.5D form, using company logos that have never been translated into 3D or 2.5D in detail. This research will focus on efforts to build a design and prototype for chocolate souvenirs to meet the needs of PT Panasonic Gobel Indonesia and is planned in 3D or 2.5D form. Product design is carried out using ArtCAM Pro software to obtain detailed textures and reliefs of chocolate, while the prototyping process will be carried out using the Subtractive Rapid Prototyping (SRP) method using a Computer Numerical Control (CNC) machine to obtain precise results according to the design. The final results of the research are a 2.5D PT PGI souvenir chocolate design, a prototype chocolate mold pattern made from pine wood with dimensions of 260 x 200 x 25 mm, a chocolate mold prototype made from rigid polyvinyl chloride (PVC) sheet plastic with a thickness of 0.5 mm, and a 2.5D chocolate prototype with dimensions 216 x 136 x 20.5 mm.
subject: Articles
  topic: section
subject: prototyping
  topic: keywords
subject: mold pattern
  topic: keywords
subject: souvenir chocolate
  topic: keywords
creator: Theodorus Hanandaka
creator: Hotma Antoni Hutahaean
rights: Copyright (c) 2025 Jurnal Praktik Keinsinyuran
date: 2025-09-04
publication date: 2025-09-04
starting page: 209
ending page: 220
doi: 10.25170/jpk.v2i03.6898

Penerapan Kaizen System Untuk Efisiensi Pekerjaan GalianBatu Pada Proyek Relokasi Jalan Masyarakat TerdampakBendungan Bolango Ulu PT. Bumi Karsa
type: item
description: This article presents the implementation of the kaizen system in engineering practices at PT. Bumi Karsa, aiming to enhance the efficiency of stone excavation work. Open blasting replaced the use of a hydraulic breaker excavator as the method. The planning and execution of this kaizen system followed the Plan, Do, Check, and Action (PDCA) framework. The study was conducted on the Relocation Project for the Affected Community Road of the Bolango Ulu Dam in Gorontalo. Results indicate that the implementation of kaizen led to a 17.95% reduction in operational costs and a completion time that was 16 working days faster
subject: Articles
  topic: section
subject: Kaizen
  topic: keywords
subject: Project Manajement
  topic: keywords
creator: Yohanes Sri Aji Dwi Cahyadi
creator: Ronald Sukwadi
rights: Copyright (c) 2025 Jurnal Praktik Keinsinyuran
date: 2025-10-01
publication date: 2025-10-01
starting page: 333
ending page: 341
doi: 10.25170/jpk.v2i04.6897

Strategi Optimalisasi Manajemen Proyek Infrastruktur Energi Terbarukan untuk Meningkatkan Ketepatan Waktu dan Kualitas Instalasi
type: item
description: Renewable energy infrastructure is essential for energy transition and national energy security, yet project execution often faces delays and suboptimal installation quality. This study investigates engineering practices for managing renewable energy projects, focusing on photovoltaic (PV) system installations in diverse Indonesian regions. Using a qualitative descriptive approach with case studies and field observations, the research analyzes project execution processes to identify key factors influencing outcomes. Findings show that integrated project management based on hands-on field practices, reinforced stakeholder communication, and adherence to measurable quality standards can accelerate project completion while maintaining reliability. In addition, adapting local technologies and engaging communities support smoother implementation and long-term sustainability. The study provides practical insights for engineering professionals in developing project management strategies that enhance efficiency and quality while contributing to Indonesia’s renewable energy goals.
subject: Articles
  topic: section
subject: Project Management
  topic: keywords
subject: Renewable Energy
  topic: keywords
subject: Electrical Installation
  topic: keywords
subject: Construction Quallity
  topic: keywords
subject: Project Completion Timeline
  topic: keywords
subject: Engineering Practice
  topic: keywords
creator: Alhadi Ihsan
creator: Melisa Mulyadi
rights: Copyright (c) 2025 Jurnal Praktik Keinsinyuran
date: 2025-09-11
publication date: 2025-09-11
starting page: 254
ending page: 264
doi: 10.25170/jpk.v2i03.6887

Evaluasi Perpanjangan Umur Pakai Overhead Crane Menggunakan Pedekatan Fatigue Life
type: item
description: The reliability of equipment in the oil and gas sector, particularly in load-lifting systems such as overhead cranes, is a critical factor that influences both safety and operational continuity. Over time, these systems are subject to degradation due to repeated loading cycles and harsh operating environments. In accordance with the Indonesian Ministry of Energy and Mineral Resources Regulation No. 32 of 2021, any equipment that approaches or exceeds its design life must be evaluated for continued serviceability through a Residual Life Assessment (RLA). This study investigates the estimated remaining life of a lifting device using the fatigue life approach, based on the AISC 360-16 standard. The results indicate that the equipment remains fit for continued service, with a significantly high estimated remaining life across different loading scenarios - 83752 years for light use, 33302 years for moderate use, and 16635 years for heavy use. These values are attributed to the actual working stress being significantly lower than the allowable stress limit, thereby enabling an essentially infinite fatigue life under theoretical conditions. In this study, the fatigue cycle is conservatively limited to 10⁸ cycles to account for practical constraints and design conservatism.
subject: Articles
  topic: section
subject: Overhead Crane
  topic: keywords
subject: Remaining Life
  topic: keywords
subject: Fatigue
  topic: keywords
creator: Usman Siregar
creator: Hotma Antoni Hutahaean
rights: Copyright (c) 2025 Jurnal Praktik Keinsinyuran
date: 2025-11-24
publication date: 2025-11-24
starting page: 533
ending page: 540
doi: 10.25170/jpk.v2i05.6882

Implementasi Warehouse Management System (WMS) untuk Meningkatkan Kinerja Warehouse pada Perusahaan Otomotif
type: item
description: The implementation of a Warehouse Management System (WMS) is a strategic step to enhance efficiency and accuracy in warehouse operations, particularly in the automotive industry, which faces high complexity in its supply chain. This research is motivated by the need for automotive companies to improve logistics performance, reduce delivery errors, and accelerate the distribution process of components. The objective of this study is to evaluate the impact of WMS implementation on warehouse performance, focusing on operational efficiency, inventory accuracy, distribution speed, and the defect ratio in component supply services. The research employs both quantitative and qualitative case study approaches through data collection before and after WMS implementation, field observations, and interviews with relevant personnel. The findings indicate that WMS implementation improves warehouse process efficiency, reduces picking time, increases stock data accuracy, and decreases component delivery shortages. Despite several challenges such as technology adaptation and workforce training, the success of implementation is strongly supported by management commitment and infrastructure readiness. support logistics optimization in automotive companies.
subject: Articles
  topic: section
subject: Warehouse Management System (WMS)
  topic: keywords
subject: warehouse performance
  topic: keywords
subject: warehouse activity
  topic: keywords
creator: Basuki
creator: Hotma Antoni Hutahaean
rights: Copyright (c) 2025 Jurnal Praktik Keinsinyuran
date: 2025-09-01
publication date: 2025-09-01
starting page: 189
ending page: 202
doi: 10.25170/jpk.v2i03.6873

Perspektif Grup Proses Manajemen Proyek pada Implementasi Smart Parking System di UKSW
type: item
description: In every job that meets the requirements as a project, it can be seen through the perspective of the project management process group, especially if the work has a predictive approach. The requirements for a project are to have a certain duration of work and unique results. The Smart Parking System implementation at the Satya Wacana Christian University (SWCU) meets the requirements as a project, and therefore can be discussed through the perspective of the project management process group. In the initiation process group the organization's objectives were obtained to carry out the efficiency of parking operators and updating technology without reducing parking safety. Furthermore, in the planning process group with the help of a Gantt Chart, Budget Table, and Rasci Matrix so that the time estimation value needed for 91 days and the budget estimate of Rp 72,500,000,-. In the execution process group, the work process is shown in accordance with the work breakdown structure (WBS) in planning. The monitoring and control process group ensures that the work is in accordance with the budget and duration needed. Finally, the closing process group was handed over to the Project Sponsor.
subject: Articles
  topic: section
subject: Group Process
  topic: keywords
subject: Project Management
  topic: keywords
subject: Smart Parking System
  topic: keywords
creator: Demas Sabatino
creator: Linda Wijayanti
rights: Copyright (c) 2025 Jurnal Praktik Keinsinyuran
date: 2025-11-06
publication date: 2025-11-06
starting page: 439
ending page: 448
doi: 10.25170/jpk.v2i04.6867

Pembangunan Gardu Induk 150 kV Lautan Baja Indonesia
type: item
description: This engineering practice activity involves the implementation of the construction and installation of the Main Substation (GI) of PT.PLN (Persero) installed by PT. Siemens Energy Indonesia in the PT.Lautan Baja Indonesia factory area in Serang Regency, Banten. This substation is an external substation built in four bays which aims to support the optimization of electricity supply for PT. Lautan Baja Indonesia factory production and strengthen the supply of electricity in the Serang area, Banten. The substation has not been operational because it is waiting for the completion of the construction of the high-voltage overhead line (SUTT) which is the main source of electricity distribution from other substations. With this research, it is hoped that the government will immediately determine and approve the replacement compensation costs for buildings and areas owned by the community that are passed by the High Voltage Overhead Line so that the Lautan Baja Indonesia substation can operate.
subject: Articles
  topic: section
subject: Construction
  topic: keywords
subject: Substation
  topic: keywords
subject: SUTT
  topic: keywords
subject: Serang
  topic: keywords
creator: Christian Andreas Oktaviano Nainggolan
creator: Tajuddin Nur
rights: Copyright (c) 2025 Jurnal Praktik Keinsinyuran
date: 2025-09-22
publication date: 2025-09-22
starting page: 302
ending page: 310
doi: 10.25170/jpk.v2i03.6863

Penerapan Value Engineering dalam Kontrak FIDIC untuk Efisiensi Biaya oleh General Contractor
type: item
description: In construction projects, there is a correlation between cost and time. Cost and time are key factors that impact the success of a project. The cost effectiveness is always related to Value Engineering. Value Engineering is a systematic approach that increases the value of a product or project through functional analysis, proposing to reduce costs without compromising quality or performance. The implementation of Value Engineering by the General Contractor in construction uses the FIDIC contract as the legal basis. Changing the materials is proposed as a solution for a faster project duration. The topic discussed is a qualitative and descriptive approach based on a confidential case study from an ongoing project. The results of the analysis show that Value Engineering can reduce costs by up to 14% from the outset without compromising the quality of the work. The discussion on Value Engineering is expected to provide insights for contractors in proposing material changes through this approach. By proposing alternative materials that meet the specifications, it is hoped that Value Engineering can serve as a solution to enhance efficiency and sustainability in the project.
subject: Articles
  topic: section
subject: Value Engineering
  topic: keywords
subject: FIDIC
  topic: keywords
subject: Material Replacement
  topic: keywords
subject: Cost Efficiency
  topic: keywords
creator: Nadiya Uswachasanaty
creator: Maria Margaretha Lanny Widyastuti Pandjaitan
creator: Lukas
rights: Copyright (c) 2025 Jurnal Praktik Keinsinyuran
date: 2025-11-17
publication date: 2025-11-17
starting page: 525
ending page: 532
doi: 10.25170/jpk.v2i05.6853

Perancangan Solusi Retrofit Sistem Otomasi dengan Analytic Hierarchy Process (AHP): Pendekatan Multi-Kriteria Berbasis Kebutuhan Operasional dan Rancangan Engineering
type: item
description: This case study aims to design an effective retrofit solution using the Analytic Hierarchy Process (AHP) method. The evaluation is based on six main criteria: cost, impact on sortation operations, additional space requirements for fulfillment, impact on the operational network, total implementation time, and overall operational sustainability. The weighting of each criterion is determined through realistic engineering analysis and input from operational experts, ensuring alignment with daily needs and operational workload. Three solution alternatives are analyzed: (1) dismantling, storing, and reinstalling the system at another sortation site; (2) full-system retrofit; and (3) phased retrofit. The results show that the phased retrofit option has the highest priority score, as it reduces long-term costs, minimizes operational disruption, and optimizes space usage. This solution also aligns with the operational network plan, accelerates implementation, and enhances overall sustainability. The AHP-based retrofit approach proves to be an effective solution for improving sortation and fulfillment efficiency.
subject: Articles
  topic: section
subject: AHP
  topic: keywords
subject: Retrofit
  topic: keywords
subject: Automation
  topic: keywords
subject: Efficienty
  topic: keywords
creator: Alda Lumban Gaol
creator: Djoko Setyanto
rights: Copyright (c) 2025 Jurnal Praktik Keinsinyuran
date: 2025-11-10
publication date: 2025-11-10
starting page: 467
ending page: 476
doi: 10.25170/jpk.v2i04.6854

Penggunaan CTF-9A Admixture Tambahan sebagai Optimasi pada Produksi Beton Pracetak (Studi Kasus pada Produksi Tiang Pancang/Spun Pile)
type: item
description: The addition of admixtures to precast concrete is one method to enhance performance and production efficiency. This study aims to evaluate the effect of using CTF-9A chemical admixture on the mechanical properties and early hardening characteristics of precast concrete. The methodology includes testing compressive strength, setting time, and workability of concrete with varying doses of CTF-9A in a standard concrete mix. The results indicate that the optimal dosage of CTF-9A can increase compressive strength by up to 12% compared to normal design concrete, accelerate the initial setting time, and maintain slump within an applicable time frame for precast operations. Therefore, CTF-9A shows potential as an effective admixture to improve the quality and productivity of the precast concrete industry.
subject: Articles
  topic: section
subject: Precast Concrete
  topic: keywords
subject: CTF-9A Admixture
  topic: keywords
subject: Compressive Strength Workability
  topic: keywords
creator: Nurkholis Hakim
creator: Lukas
creator: M.M. Lanny W. Pandjaitan
rights: Copyright (c) 2025 Jurnal Praktik Keinsinyuran
date: 2025-10-24
publication date: 2025-10-24
starting page: 363
ending page: 372
doi: 10.25170/jpk.v2i04.6846

Analisis Batuan Andesit Sebagai Bahan Konstruksi Jalan Di Daerah Pringgabaya Lombok Timur Nusa Tenggara Barat
type: item
description: Andesite is an intermediate volcanic igneous rock commonly used in construction for its mechanical strength. This study evaluates the suitability of local andesite as a road construction material through laboratory-based engineering tests. Physical characterization showed moderate porosity (18.29%) with corresponding compressive strength of 360.6 kg/cm², meeting the requirements of the Indonesian National Standard for natural building stone (SNI 03-0394-1989). Uniaxial compressive strength testing yielded 8.5 MPa, further confirming its adequacy for use in bollards and roadside stone. These results demonstrate that the studied andesite has sufficient strength and durability for road construction, highlighting its potential to support infrastructure development using locally available resources.
subject: Articles
  topic: section
subject: Andesites
  topic: keywords
subject: Construction
  topic: keywords
subject: Porosity
  topic: keywords
subject: Resources
  topic: keywords
creator: Rukayah Ahmad
creator: Lukas
creator: M.M. Lanny W Pandjaitan
rights: Copyright (c) 2025 Jurnal Praktik Keinsinyuran
date: 2025-10-01
publication date: 2025-10-01
starting page: 327
ending page: 332
doi: 10.25170/jpk.v2i04.6840

Penilaian Perpanjangan Sisa Umur Layan (Residual Life Assessment) Storage Tank Berdasarkan Pengurangan Ketebalan (PT Studi Kasus: Pertamina EP OGT Field)
type: item
description: According to the Decree of the Director of Oil and Gas Engineering and Environment as Head of Oil and Gas Inspection Number 183.K/HK.02/DMT/2024, Equipment that has reached the end of its design life or equipment that is 20 years old from the year of manufacture if the design service life is unknown, shall be assessed for residual life. This article discusses the residual life assessment method for Storage tanks based on thickness reduction (metal loss). In this article it is explained how to assess the residual life of the storage tank with the metal loss method, the guidelines for doing calculations are API Std. 650, API Std. 653 and API 579-1, while the data used in the calculation refers to the actual thickness, previous report, manufacture data report and visual documentation. The calculations for this assessment rely on actual thickness documents, previous reports, design data, and operational data. The results indicate that all actual thicknesses remain above the allowable minimum thickness, and the residual life assessment confirms the storage tank is fit for operation for an additional 9.8 years.
subject: Articles
  topic: section
subject: Storage tank
  topic: keywords
subject: RLA
  topic: keywords
subject: Thickness
  topic: keywords
creator: Endang Sadillah
creator: Marsellinus Bachtiar Wahyu
rights: Copyright (c) 2025 Jurnal Praktik Keinsinyuran
date: 2025-09-11
publication date: 2025-09-11
starting page: 247
ending page: 253
doi: 10.25170/jpk.v2i03.6838

Analisis Kebutuhan Automated Guide Vehicle (AGV) untuk Efisiensi Operasional Gudang di PT. XYZ
type: item
description: PT. XYZ is a manufacturing company specializing in toothpaste production. In its material handling processes, the company relies on manually operated forklifts for receiving, storing, and distributing materials. However, this manual approach has led to various issues, including incorrect placement of materials, the accumulation of raw materials leading to accelerated expiration, discrepancies in material usage data, and an increased risk of workplace accidents. This research focuses on calculating the number of Kendaraan Pemandu Otomatiss (AGVs) needed and their implementation in the warehousing system of PT. XYZ. The introduction of AGVs, as part of the Industry 4.0 automation initiative, is expected to enhance efficiency and workplace safety.The study begins with a site survey, mapping of work routes, and the collection of daily operational data and technical specifications for the AGVs. Through analysis of travel time, load capacity, and operational coefficients, the findings indicate that nine AGVs are required for effective material handling in the warehouse. It is hoped that the implementation of AGVs will improve warehouse management, enhance accuracy, and reduce reliance on human labor for material handling tasks.
subject: Articles
  topic: section
subject: Automation
  topic: keywords
subject: Automated Guide Vehicle
  topic: keywords
subject: Warehouse
  topic: keywords
subject: Raw Material Storage
  topic: keywords
creator: Muhammad Aviz Gumaya
creator: Trifenaus Prabu Hidayat
rights: Copyright (c) 2025 Jurnal Praktik Keinsinyuran
date: 2025-09-12
publication date: 2025-09-12
starting page: 265
ending page: 274
doi: 10.25170/jpk.v2i03.6813

Analisis Kinerja Solar Charge Controller Menggunakan Thyristor dengan Sumber Energi Hibrida
type: item
description: This study aims to enhance innovation in electric motorcycle battery charging systems using solar panels as the energy source. A 14-day performance comparison was conducted between a thyristor-based charger and a conventional charger, with current and voltage data recorded from PLN grid and solar power sources. The maximum charging power from the PLN grid reached 359.21 W with a 4.5-hour charging time, while the solar panel produced 621.71 W with a 2.5-hour charging time. The hybrid system using a 3A power supply achieved 3.103 W. These results align with the calculated power based on the specified input and output parameters.
subject: Articles
  topic: section
subject: Battery
  topic: keywords
subject: Charging
  topic: keywords
subject: Electric Motorcycle
  topic: keywords
subject: Solar Panel
  topic: keywords
subject: Thyristor
  topic: keywords
creator: Ferdyanto
creator: Hadi Sutanto
creator: Mufti Ahmad Fadilah
creator: Raden Danuprawira Harris
creator: Muhammad Raihan Fadlurrahman
rights: Copyright (c) 2025 Jurnal Praktik Keinsinyuran
date: 2025-11-04
publication date: 2025-11-04
starting page: 399
ending page: 416
doi: 10.25170/jpk.v2i04.6792