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All Journal Mechanical Engineering for Society and Industry Automotive Experiences
Aries Abbas
Universiti Kuala Lumpur Malaysia Italy Design Institute (UnikL MIDI), Malaysia
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Effects of Injection Pressure on Output Power, BTE, SFC and Opacity in a Typical Single-Cylinder Diesel Engine Farid Majedi; Denik Setiyaningrum; Setyono M. T. Hidayahtullah; Aries Abbas
Automotive Experiences Vol 3 No 1 (2020)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1089.826 KB) | DOI: 10.31603/ae.v3i1.3006

Abstract

On a single-cylinder diesel engine, injection pressure can be adjusted by changing the thickness of the injector shim. In this study, the injection pressure of 180 bar (standard), 190 bar (+1mm shim), and 210 bar (+2mm shim) was examined on a typical single-cylinder diesel engine with pure diesel fuel. The tests carried out at a constant engine speed of 1500 rpm with load variations of 650, 1300, 1950, and 3600 Watts to investigate the effect of injection pressure on output power, brake thermal efficiency (BTE), specific fuel consumption (SFC) and opacity. The results showed that increasing injection pressure could increase the output power by 19.3% and 17.4% by adding 1 mm and 2 mm shims, respectively. SFC decreased 1.97% and 12.3% compared to standard conditions and opacity with 2 mm shim was lower than 1 mm shim. In conclusion, increasing the injection pressure from 180 to 210 bar by adding 2 mm shim can improve the performance of a single cylinder diesel engine, which includes output power, brake thermal efficiency (BTE), specific fuel consumption (SFC) and opacity.
A Report on Metal Forming Technology Transfer from Expert to Industry for Improving Production Efficiency Khoirudin Khoirudin; Sukarman Sukarman; Murtalim Murtalim; Fathan Mubina Dewadi; Nana Rahdiana; Amin Rais; Amri Abdulah; Choirul Anwar; Aries Abbas
Mechanical Engineering for Society and Industry Vol 1 No 2 (2021)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (795.464 KB) | DOI: 10.31603/mesi.5613

Abstract

This article reports on technological mastery assistance in three small metal forming industries in Indonesia. Problems in the blangking and piercing separately process caused increased production time which resulted in inefficiency cost. Therefore, the expert team aided in metal forming technology through participatory action research (PAR) methods and experimental methods through reverse engineering for several products. The PAR method involves optimal contribution and participation from the industry. Assistance in mastering technology in small metal-forming industries reduces the manufacturing process from seven to three stages, increasing efficiency. The press machine's tonnage capacity must balance with the force blanking/piercing requirement. The minimum press machine requirement is 6.7 tons, and based on the availability of existing press machines, the expert team recommends a 20-ton capacity press machine. Total efficiency can be further increased by implementing full progressive die technology by combining piercing, blanking, and bending processes.
Hospital Bed for Diabetes Care: An Invention to Support Professional and Hygienic Nursing Practice Sodiq Kamal; Suroto Munahar; Aries Abbas; Yoshifumi Ito; Agus Wahyudi
Mechanical Engineering for Society and Industry Vol 1 No 1 (2021)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (563.838 KB) | DOI: 10.31603/mesi.5262

Abstract

Appropriate diabetes mellitus (DM) wound care requires safe and comfortable space and facilities for patients and nurses. However, the existing hospital bed for DM has not supported the safety and comfort for nurses to serve patients, including the problem of liquid waste and some DM wounds emit a foul smell. Therefore, a hospital bed for DM wound care was designed in this research to support professional, efficient, ergonomic, and safe nursing practice. Multidisciplinary collaboration by engineers, wound nursing practitioners, and industry is carried out in this project. The level of risk of work disturbances was evaluated using a rapid entire body assessment (REBA), the level of risk of contamination was evaluated by a qualitative exposure assessment, and the level of comfort was measured using the visual analog method. Trials on 30 respondents consisting of 28 nurses and 2 doctors indicated that they were comfortable working with the new design of this prototype with lower risk.
Co-Authors Agus Wahyudi Amin Rais Amri Abdulah Choirul Anwar Denik Setiyaningrum Farid Majedi Fathan Mubina Dewadi Khoirudin Khoirudin Murtalim Murtalim Nana Rahdiana Setyono M. T. Hidayahtullah Sodiq Kamal Sukarman Sukarman Suroto Munahar Yoshifumi Ito