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All Journal JURNAL CRANKSHAFT Infotekmesin Jurnal Konversi Energi dan Manufaktur AMMA : Jurnal Pengabdian Masyarakat
Apri Setiawan
Politeknik Negeri Bandung
Aerospace Engineering Humanities Automotive Engineering Chemistry Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Nursing

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Pelatihan & Sertifikasi Kompetensi Klaster Servis Sepeda Motor Karburator Untuk Masyarakat Ciwidey Jawa Barat Adri Maldi Subardjah; Mokhamad Munir Fahmi; Budi Triyono; Dibyo Setiawan; Apri Setiawan; Sulistianto Sunaryo; Jumari; Cahyo Wibowo
AMMA : Jurnal Pengabdian Masyarakat Vol. 3 No. 12 : Januari (2025): AMMA : Jurnal Pengabdian Masyarakat
Publisher : CV. Multi Kreasi Media

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Abstract

The CSR program is a sustainable commitment ethically, legally, and contributes to improving the quality of life for workers/families, local communities, and society as a whole, such as waste processing, infrastructure development, MSME development, and others. Geo Dipa Energi operates in the field of managing and utilizing geothermal energy for electricity generation. Management is in the Ciwidey area covering 3 villages. The program aims to provide skills, support independence, and open up opportunities to apply for jobs with a skills certificate in the automotive sector. Polban with Public Service Agency status can provide services to the community in the form of providing goods/services in carrying out its activities based on the principles of efficiency and productivity. The method of implementing community service is through financing the Geo Dipa Energi CSR program in collaboration with Polban and LSP TOP. The carburetor motorbike service cluster training and certification includes 22 competency items, 3 batches are implemented, the number of participants is 30, details for each batch consist of 8 days of training, 1 day of simulation, satisfaction survey, registration, online assessment, and 1 day of practical assessment. As a result of the assessment, all participants obtained the title of competent.
Pembinaan Dan Penerapan Mesin Pencacah Limbah Pertanian Bagi Kelompok Petani Di Kab. Rejang Lebong Harry Prayoga Setyawan; Fauzi Widyawati; Apri Setiawan; Hanni Maksum
AMMA : Jurnal Pengabdian Masyarakat Vol. 4 No. 12 : Januari (2026): AMMA : Jurnal Pengabdian Masyarakat
Publisher : CV. Multi Kreasi Media

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Abstract

The agricultural sector in Babakan Baru Village faces significant challenges in managing crop residues, which are traditionally burned, leading to environmental pollution. This Community Service (PkM) program implements Appropriate Technology (TTG) through an agricultural waste shredding machine to enhance farmers' productivity and self-sufficiency. The methodology involves partner coordination, CAD-based design, manufacturing, technical assistance, and operational training. The project successfully developed a shredder unit with a 100 kg/hour capacity powered by a 7.5 HP gasoline engine. This implementation delivers transformative impacts: technically, it increases the efficiency of converting waste into compost raw materials, while economically, it reduces dependence on commercial chemical fertilizers. Furthermore, the training improved the farmer groups' human resource capacity regarding machine maintenance and Occupational Health and Safety (OHS) procedures. Overall, the program fosters sustainable agricultural modernization that is environmentally friendly and economically beneficial in Rejang Lebong Regency.
Analysis of Lead Time Reduction in Pre-Delivery Installation Process of Excavator Units at PT. XYZ Assembly Plant Dibyo Setiawan; Tubagus Syah Fatahillah Gelagah Wangi Bintaran; Apri Setiawan; Hanni Maksum Ardi; Herbert Hasudungan Siahaan; Cahyo Wibowo
Jurnal Konversi Energi dan Manufaktur Vol. 11 No. 1 (2026)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.11.1.5

Abstract

The Pre-Delivery Installation (PDI) Department of PT. XYZ is tasked with carrying out the installation process of imported heavy equipment attachment units, including one of the leading excavator units. Obstacles that arise can affect installation productivity. The gap between the actual installation results of 78 units and the company's target of 156 units requires a solution or resolution to improve the process that can be implemented. Therefore, it is necessary to investigate the wait time associated with decreased productivity, which is the longest component of the installation process. This work has a purpose to analyze lead time of the excavator attachment unit installation process. The method is applied with a time study approach referring to data sheets and observations, then processing lead time data using pie charts, Pareto diagrams, and fishbone diagrams. Furthermore, we review the planning calendar, realization, and improvement engineering. Reduction is carried out by providing additional work personnel and procuring sanding machine tools to reduce the installation and critical time of the planning calendar. The realization condition for 562 minutes with the implementation of improvement engineering is reduced to 318 minutes. Thus, it can speed up implementation time of the excavator attachment in unit installation process to 224 minutes or 44%.
Rancang Bangun dan Pengujian Performa Mesin Pembubur Sampah Organik Menjadi Pakan Maggot Kapasitas 24 kg/jam Budi Triyono; Raden Roro Yngwistian Jannavis Astie; Zainuddin; Dibyo Setiawan; Apri Setiawan
Infotekmesin Vol 16 No 2 (2025): Infotekmesin: Juli 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i2.2758

Abstract

Organic waste management, particularly from canteens or kitchens, which often consists of leftover meat, fish, and vegetables, remains a significant challenge. If processed properly, this waste has the potential to be used as maggot feed. To process this organic waste, it is necessary to develop an organic waste slurry machine designed to process organic waste from the Pujasera or campus canteen into maggot feed. The development process for this machine includes six stages: Planning, Conceptual design, Detailed design, Technical documentation, Manufacturing and assembly, and Testing. From these stages, a compact organic waste slurry machine is produced with dimensions of 815 x 425 x 840 mm, driven by a 1-phase electric motor with a power of 1.5 HP (1,100 Watts) and a rotation speed of 1,050 RPM. The test results show that this machine is effective in shredding organic waste with a capacity of 24 kg/hour, a maximum power of 1,037 Watts, and an energy consumption of 0.860 kWh. These results provide an innovative and economical solution, promoting the use of organic waste as a valuable resource.
ANALISIS SIMULASI PERFORMA TURBIN PROPELLER PEMBANGKIT LISTRIK TENAGA MIKROHIDRO PROFIL AIRFOIL NACA 5310 DAN NACA 6412 Haryadi; Ahmad Zaki Rasyidi; Apri Setiawan; Budi Triyono; Dibyo Setiawan
JURNAL CRANKSHAFT Vol. 9 No. 1 (2026): Jurnal Crankshaft Vol. 9 No. 1 (2026)
Publisher : Badan Penerbit Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/cra.v9i1.16796

Abstract

Renewable energy, particularly hydropower, has become an important alternative in reducing dependence on fossil fuels. One widely used technology is the propeller turbine, which utilizes airfoil-based blade profiles to enhance the conversion of fluid energy into mechanical energy. This study aims to analyze the simulation performance of a propeller turbine with variations of NACA 5310 and NACA 6412 airfoil profiles under low-head conditions. The methodology employed is a numerical simulation based on Computational Fluid Dynamics (CFD). The observed variables include flow rate, pressure distribution, rotational speed, torque, hydraulic power, mechanical power, and turbine efficiency at head variations of 3 m and 5 m. The simulation results indicate that increasing the head from 3 m to 5 m significantly increases the flow rate, torque, and mechanical power; however, the turbine efficiency decreases drastically from approximately 69–71% at a 3 m head to about 30% at a 5 m head. The NACA 6412 profile demonstrates slightly better performance than the NACA 5310 profile, particularly in terms of efficiency and torque stability. Overall, both airfoil profiles are more suitable for low-head operating conditions and therefore have strong potential for application in micro-hydro power plants.
Co-Authors Adri Maldi Subardjah Ahmad Zaki Rasyidi Budi Triyono Cahyo Wibowo Fauzi Widyawati Hanni Maksum Hanni Maksum Ardi Harry Prayoga Setyawan Haryadi, Haryadi Jumari Mokhamad Munir Fahmi Raden Roro Yngwistian Jannavis Astie setiawan, Dibyo Siahaan, Herbert Hasudungan Sulistianto Sunaryo Tubagus Syah Fatahillah Gelagah Wangi Bintaran Zainuddin