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All Journal JURNAL PENGABDIAN KEPADA MASYARAKAT JSAI (Journal Scientific and Applied Informatics) Majalah Teknik Simes METAL : Jurnal Sistem Mekanik dan Termal Jurnal INFOTEL Abdi Reksa Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Dharmakayana: Journal of scientists, engineers, educators and scientific activists related to society development
Bismantolo, Putra
Universitas Bengkulu
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation Other

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ANALISA KOROSI PADA TANGKI REAKTOR TRIGA 2000 MENGGUNAKAN METODE INSPEKSI ULTRASONIK DAN INSPEKSI VISUAL (UNDERWATER CAMERA) Shafira; Hendri Hestiawan; Bismantolo, Putra
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 6 No. 2 (2022): Oktober 2022
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v6i2.25457

Abstract

A reactor is a process device where a reaction takes place, be it a chemical or nuclear reaction and not physically. Nuclear reactors are used for various purposes, namely to create, regulate, and maintain a nuclear chain reaction at a constant rate. One method of monitoring corrosion is using an ultrasonic device to measure the thickness of the tank wall and an underwater camera tool to visually see the damage that has occurred and will provide a quantitative estimate of the corrosion rate that occurs in the system by comparing the initial weight and weight after a certain time. The corrosion rate value on the TRIGA 2000 reactor wall is obtained through the weight reduction method, and has an average corrosion value of 0.10 mmpy, while the type of corrosion that occurs on the TRIGA 2000 reactor wall is the type of intergranular corrosion. protective coating by coating organic compounds (lubricant) and controlling humidity and temperature.
ANALISIS PERFORMANCE POMPA FEED SENTRIFUGAL Erwinsyah, Mochamad Dava Erwinsyah; Bismantolo, Putra; Witanto, Yovan
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 7 No. 1 (2023): April 2023
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v7i1.30103

Abstract

To support the optimization of operations at a refinery, a tool is urgently needed that can help process crude oil into a product. The centrifugal feed pump P-100/4 is a pump that operates in a distillation unit where the distillation unit functions to process oil from crude oil into products such as residue, diesel ph, diesel, kerosene, naptha and petrasol. The centrifugal feed pump P-100/4 aims to pump crude oil from tanks 101 and 102 to provide feed to furnace 5, before entering the crude oil furnace which is preheated in heat exchangers 1,2,3 to 4. The P-100/4 feed centrifugal pump is driven by a motor. In this paper more focused on the operation and maintenance of centrifugal pump P-100/4 feed. This data collection method is carried out by conducting interviews with field supervisors, and observing the pump unit directly, and other supporting books. The results obtained are: With a good and correct pump operator system and with capable and skilled operators, the pump operation will always be in good condition, and the life of the pump will be longer. The NPSHa value of the P. 100/4 mash pump meets the operating specifications, which is greater than the NPSHr. So the P.100/4 pump does not experience cavitation so the pump work is very stable. The efficiency price of the P. 100/4 feed pump is 68.40%
PROSES PRODUKSI KOMPONEN DUDUKAN WINCH KENDARAAN KHUSUS TAKTIS MAUNG 4X4 Sitinjak, Heryanto; Supardi, Nurul Iman; Bismantolo, Putra
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 7 No. 2 (2023): Oktober 2023
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v7i2.34058

Abstract

In accelerating production, the manufacturing process uses modern equipment such as machines and implements a structured program to carry out production. This study aims to determine the process of making winch mount components for Maung 4x4 special tactical vehicles. The manufacturing process begins with designing the product, determining the specifications of the material from which the product is made. After that, the raw material is modified through a manufacturing process to be formed into the required parts. To speed up and simplify the production process, a CNC (Computer Numerical Control) machine is used which works automatically according to the program made. To produce a desired product, of course, must go through several stages. In production the manufacturing process requires machining stages. This is because the desired product cannot be produced through only one machining process. Manufacturing steps, namely, making component designs, material verification (material verification) cutting processes, bending processes, and welding processes.
ANALISA ALIGNMENT SHAFT TURBIN GAS Ramadani, Dwi; Suryadi, Dedi; Bismantolo, Putra
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 8 No. 1 (2024): April 2024
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v8i1.36548

Abstract

In the gas turbine system there is a section that functions as a place for combustion between a mixture of air and gas called the combustion section. The components of the alignment of the shaft need to be maintained regularly so that the resulting combustion is good. In the process of the turbine producing electrical energy there are many obstacles that occur which result in a reduction in the productivity of the turbine work, one of the causes is misalignment of the shaft. Misalignment on the shaft can be overcome by carrying out an alignment process which aims to make the shaft return to its initial position so that it is parallel to the other shaft. The alignment process is carried out to get the axial and radial values on the shaft which is then carried out by the adjusting process. The adjusting process is carried out so that the position of the shaft that is out of tolerance returns to the tolerance position and the work of the turbine can return to normal.
“EFFICIENCY ANALYSIS OF 3 DIFFERENT FUEL TOWARDS GASOLINE FUEL MOTORS ON EME 35 ENGINES IN LAPAN SURVELLANCE UAV-02 (LSU-02)” Ramadhan, M. Fajar; Bismantolo, Putra; Suryadi, Dedi; Utama, Agus Bayu
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 8 No. 2 (2024): Oktober 2024
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v8i2.38341

Abstract

This study aims to analyze the efficiency of three different types of fuel on the EME 35 engine on the LSU 02 aircraft. The fuel used is Pertalite, Pertamax, and Pertamax turbo. The method used in this study was an experiment using the LSU 02 aircraft as the research object. The data is taken from measurements of fuel consumption and engine performance on each type of fuel. The analysis is carried out by comparing the efficiency and performance of the engine on each type of fuel used. The results showed that the efficiency and performance of the engine on Pertamax fuel was better than that of Pertamax turbo and Pertalite. Fuel consumption on Pertamax is more efficient than Pertalite and Pertamax turbo, so that Pertamax is more efficient in fuel use. In addition, engines on Pertamax fuel have better performance with greater power and are more stable compared to Pertalite and Pertamax turbo. Therefore, it is recommended to use Pertamax fuel in the EME 35 engine on the LSU 02 aircraft to achieve better efficiency and performance.
ANALISIS TEKANAN HIDROLIK TERHADAP OIL LOSSES PADA MESIN PRESS KAPASITAS 15 TON Tarigan, Daniel Elieser; Zuliantoni; Bismantolo, Putra
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 9 No. 1 (2025): April 2025
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v9i1.38827

Abstract

In palm oil processing, there are five main stages: sterilization, threshing, digestion, pressing, and clarification. Among these, the pressing stage is one of the most critical. The pressing machine is used to separate crude oil from the fibers in the fruit pulp. This machine includes a pressing component, commonly referred to as the cone cage, which is operated by a hydraulic mechanism. The palm oil pressing process plays a crucial role in determining the success of processing fresh fruit bunches (FFB), as significant oil losses often occur during this stage. One of the key factors affecting these losses is the value of the hydraulic pressure. This study aims to investigate the effect of hydraulic pressure on oil losses in fibers for each pressing machine and to understand how the pressing machine operates. To analyze the hydraulic pressure variable and oil losses in fibers, observations were conducted by monitoring the pressure gauge on each pressing machine. The oil losses in fibers were measured through laboratory testing at the factory. The collected data were then compared. The results of this study indicate that hydraulic pressure has a significant effect on oil losses in the fibers of the pressing machine. At a hydraulic pressure of 49 bar, the smallest oil loss was recorded at 3.28%, whereas at a hydraulic pressure of 40 bar, the highest oil loss was observed at 4.42%. This demonstrates that higher hydraulic pressure results in lower oil losses, and vice versa.
INSTALASI PHOTO ELECTRIC SENSOR SEBAGAI PENUNJANG PENGEMBANGGAN SISTEM TRANSFER PNEUMATIC REAKTOR KARTINI BERBASIS PLC Ananda Putra, Irvan; Haryo Sadewo, Prasetyo; Bismantolo, Putra
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 9 No. 2 (2025): Oktober 2025
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v9i2.39594

Abstract

The installation of photoelectric sensors as a supporting element for the development of a pneumatic transfer system based on Programmable Logic Controller (PLC) in the Kartini Reactor aims to enhance efficiency and accuracy in operational processes. This study integrates photoelectric sensors to detect capsules in the pneumatic transfer system, which previously required manual intervention. The sensors send signals to the PLC, which controls actuators automatically. The system was optimized through installation, calibration, and testing, involving the measurement of capsule speeds for both empty capsules and those containing 3-gram samples. Results indicate significant operational efficiency improvements, with average transfer speeds of 12.41 m/s for empty capsules and 11.76 m/s for filled ones. This integration significantly contributes to advancing reactor automation systems based on PLC technology.
Sosialisasi Ilmu Mitigasi Tsunami Bagi Masyarakat Pesisir dan Dataran Rendah di Pagar Dewa angky, puspawan; Gunawan, Agustin; FA, A. Sofwan; Razali, Makmun Reza; Bismantolo, Putra; Zuliantoni, Zuliantoni
Dharmakayana Vol 2 No 2 (2025): November : Dharmakayana: Journal of scientists, engineers, educators and scientif
Publisher : Program Studi Teknik Mesin, Fakultas Teknik Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/dk.v2i2.45821

Abstract

Bengkulu City is a region with a high risk of tsunami due to its location adjacent to the Indian Ocean and its position in an active subduction zone. The low level of public knowledge regarding disaster mitigation increases the potential for casualties in the event of a tsunami. This community service activity aimed to enhance the understanding, awareness, and preparedness of residents in Pagar Dewa Village, Selebar District, Bengkulu City, regarding tsunami hazards through mitigation-based education and socialization. The implementation methods included socialization (counseling), interactive discussion and dialogue, presentation of evacuation routes, and information on prevention and emergency response. The results showed a significant increase in public knowledge and preparedness, demonstrated by participants’ ability to recognize early tsunami signs and take appropriate evacuation actions. Residents also showed high enthusiasm and emphasized the importance of ongoing training to maintain mitigation awareness. This activity successfully built synergy between the university, local government, and the community in reducing disaster risks in coastal and lowland areas around Bengkulu City. Therefore, tsunami mitigation education is a strategic step toward creating a disaster-resilient community and strengthening readiness for future natural threats.
IOT-Based Electrical Energy Consumption Monitoring Application on Machine Tools Putra Bismantolo; Kurnia Anggriani; Nurul Iman Supardi; Gusta Gunawan; Emilio Oktori
JURNAL INFOTEL Vol 17 No 4 (2025): November
Publisher : LPPM INSTITUT TEKNOLOGI TELKOM PURWOKERTO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20895/infotel.v17i4.1395

Abstract

Analysis of Maturity Alignment of Business Strategy with Information Technology at SAMSAT Bengkulu City Using Strategic Alignment Maturity Model (SAMM) Kurnia Anggriani; Ferzha Putra Utama; Stern Imanuel Kristian; Arie Vatresia; Putra Bismantolo
JSAI (Journal Scientific and Applied Informatics) Vol 8 No 2 (2025): Juni
Publisher : Fakultas Teknik Universitas Muhammadiyah Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36085/jsai.v8i2.8018

Abstract

Motor vehicle tax payments represent a substantial portion of regional income. However, recurrent delays in motorbike tax payments, notably in the Kandang Limun sub-district of Bengkulu City, pose a significant threat to regional development. This research aims to address these delays by predicting and implementing effective strategies. Using the RapidMiner application and the Artificial Neural Network (ANN) method, a delay rate of 36.14% was predicted. The study incorporates interviews to propose several strategies, including enhancing websites, improving offline and online services, implementing Drivethru services, and using SMS Blast notifications to combat delays. To evaluate the feasibility of these strategies, the research employs the Strategy Alignment Maturity Model (SAMM). The assessment at BPKD reveals a maturity level of 4, signifying an ability to improve and manage processes effectively.The maturity assessment suggests that the proposed strategies for overcoming delays are well-aligned with BPKD's capabilities. They have demonstrated a robust alignment between IT and business strategies, leveraging IT to enhance performance, and conducting thorough business and IT evaluations.In addition to the maturity assessment, the research offers suggestions and evaluation strategies. These encompass the adoption of biometrics for authentication, implementation of chatbots, Samsat self-service kiosks, real-time vehicle monitoring, and the introduction of automatic tax programs.
Co-Authors A. Sofwan Abdul Latif Mubarok Agus Suandi, Agus Ananda Putra, Irvan Angky Puspawan Antonius F A Silaen Arie Vatresia Arie Vatresia Bayu Andika Wijaya Dedi Suryadi Dewi Sartika Emilio Oktori Erwinsyah, Mochamad Dava Erwinsyah FA, A. Sofwan Ferzha Putra Utama Gunawan, Agustin Gusta Gunawan Halim Rivardi Thamrin Haryo Sadewo, Prasetyo Helmizar Helmizar - Hendri Hestiawan Hendri Hestiawan Hendri van Hoten Hernan Marten Karosekali Julia Purnama Sari Kurnia Anggriani, Kurnia Nurbaiti Nurbaiti Nurbaiti Nurul Iman Supardi Nurul Iman Supardi Nurul Iman Supardi Okta Piani, Sri Prasetiyo, Rafi Ramadani, Dwi Ramadhan, M. Fajar Razali, Makmun Reza Shafira Sitinjak, Heryanto Stern Imanuel Kristian Sulistrionio, Sulistriono Sunggoro Tarigan, Daniel Elieser TIMUR, RIZKY Utama, Agus Bayu Utama, Ferzha Putra Wiranto, Imam Yovan Witanto Zuliantoni, Zuliantoni