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All Journal International Journal of Renewable Energy Development Mechatronics, Electrical Power, and Vehicular Technology Jurnal Teknik Mesin Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Jurnal Teknologi SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Rekayasa Mesin Sinergi Prosiding Semnastek Indonesian Journal of Science and Technology Jurnal Penjaminan Mutu Journal of Community Services and Engagement Jurnal Elemen Teknomekanik Community Empowerment Advance Sustainable Science, Engineering and Technology (ASSET) Jurnal Teknik Mesin Asean Journal of Science and Engineering (AJSE) Mechanical Engineering for Society and Industry Automotive Experiences Urecol Journal. Part D: Applied Sciences Innovation in Health for Society Jurnal Penjaminan Mutu International Journal of Renewable Energy Development Advance Sustainable Science, Engineering and Technology (ASSET)
Muji Setiyo
Universitas Muhammadiyah Magelang, Magelang, Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Other

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Performance and emission of a spark-ignition engine using gasoline-plastic pyrolysis oil blends Sunaryo, Sunaryo; Suyitno, Suyitno; Arifin, Zainal; Setiyo, Muji
Mechanical Engineering for Society and Industry Vol 4 No 1 (2024)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.11278

Abstract

In response to the problem of plastic waste, this study investigates the conversion of PET waste plastics into Pyrolysis Plastic Oil (PPO) as an environmentally sustainable alternative energy source, aiming to tackle the pressing issue of plastic waste accumulation. Accordingly, the research comprehensively evaluates the physicochemical properties of PPO, examines its impact on engine performance, and determines the optimal concentrations for blending with gasoline. The investigation uncovers the potential of PPO through precise material preparation involving PET plastic waste pyrolysis, employing meticulous testing and analysis for comprehensive insights. Engine testing, conducted on a 125 cc, 4-stroke motorized vehicle, scrutinizes power, torque, and exhaust emissions under various PPO and gasoline blends. The findings reveal distinctive relationships between PPO ratios and engine behavior, emphasizing the need for nuanced fuel blending. The examination extends to fuel consumption and specific fuel consumption (SFC) testing, highlighting PPO's superior SFC. Exhaust emission testing demonstrates reduced emissions with heightened PPO concentration, showcasing its positive environmental impact. The results contribute valuable insights into PPO's viability as an alternative fuel source and its potential role in mitigating plastic waste. A comparative analysis with existing literature enriches our understanding of the field, emphasizing the need for careful consideration in fuel formulation. While PPO may not achieve performance parity with conventional gasoline, its environmental benefits and efficient waste utilization underscore its significance for a sustainable future. Further research is encouraged to optimize PPO properties and blending ratios, paving the way for an eco-friendlier energy landscape.
Sustainable energy for future needs: An imperative for a greener tomorrow Kolakoti, Aditya; Setiyo, Muji
Mechanical Engineering for Society and Industry Vol 4 No 1 (2024)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.11728

Abstract

According to Worldometer, around 8.1 billion inhabitants survive on mother earth, and earth provides the most essential resources like oxygen and water for survival. However, humanity has taken advantage of available resources on earth and has started exploring them with the available technology and machinery. As a result, the rapid consumption of exhaustible energy sources like fossil fuels, the purposeful clearing of forested lands, water pollution, industrialization, and waste disposal into the environment are increasing faster. Due to these activities, the earth's ecosystem is in great danger and requires an immediate remedy to safeguard it. Therefore, relying on renewable energy sources and promoting sustainable energy for future needs is one of the possible solutions to prevent environmental damage.
Research Trends of Electric Vehicles (EVs) in Indonesia, Malaysia, and Thailand: A Quick Analysis using Bibliometric Setiyo, Muji; Setiawan, Indra Chandra; Peeie, Mohamad Heerwan Bin
Automotive Experiences Vol 8 No 1 (2025)
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 | DOI: 10.31603/ae.13020

Abstract

The electric vehicles (EVs) market in ASEAN has seen rapid growth in 2024, driven by the global trend towards sustainable transportation and strong government support. Thailand, with strong government policies and extensive charging infrastructure, has emerged as a regional leader. Malaysia and Indonesia are still in the early stages of adoption, grappling with high vehicle costs, limited charging infrastructure, and public acceptance challenges. A bibliometric analysis of research output from 2015–2025 reveals an exponential growth trend in EV-related studies, with Malaysian universities leading the research focus. Despite differences in progress, Indonesia, Malaysia, and Thailand face similar challenges, including limited infrastructure, high cost of ownership, and the need for greater public awareness. Tailored policies, infrastructure improvements, and regional collaboration are critical for ASEAN countries to realize their potential as key players in the global EV transition.
Vapor compression refrigeration system with air and water cooled condenser: Analysis of thermodynamic behavior and energy efficiency ratio Setiyo, Muji; Rusdjijati, Retno; Habibi, Ilham; Rochman, Muhamad Latifur; Purnomo, Bagiyo Condro; Pertiwi, Fungky Dyan; Waluyo, Budi; Ismail, Rifky; Kolakoti, Aditya
Teknomekanik Vol. 7 No. 2 (2024): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/teknomekanik.v7i2.31972

Abstract

This study presents the analysis of thermodynamic behavior and energy efficiency of a vapor compression refrigeration system with two types of condensers: air-cooled (ACC) and water-cooled (WCC). The main objective is to assess the system performance by comparing the Coefficient of Performance (COP) and Energy Efficiency Ratio (EER) under both condenser configurations. During a 12-hour test period, data on refrigerant pressure, temperature, and electrical energy consumption were collected and analyzed. The results show that the WCC system outperforms the ACC system, showing a 5.7% increase in heat rejection and a 4.2% increase in cooling capacity. In addition, the WCC system exhibits a lower compressor duty cycle and consumes less electrical energy, resulting in a higher total EER of 5.658 compared to ACC of 1.945. These findings suggest that integrating a water-cooled condenser into a refrigeration system can significantly improve energy efficiency and reduce operating costs, making it a viable option for commercial applications in tropical regions.
Advancements in sustainable material development: A Comprehensive review of coir fiber and its composites Imran, Al Ichlas; Siregar, Januar Parlaungan; Cionita, Tezara; Hadi, Agung Efriyo; Setiyo, Muji; Mat Rejab, Mohd. Ruzaimi; Jaafar, Jamiluddin; Fitriyana, Deni Fajar; Dewi, Rozanna
Mechanical Engineering for Society and Industry Vol 4 No 3 (2024): Special Issue on Technology Update 2024
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.12556

Abstract

Derived from Coir coconut waste, coir fiber offers an environmentally friendly response to ecological challenges in various industries. Its application aligns with achieving Sustainable Development Goals (SDGs), such as eliminating extreme poverty, ensuring food security, and promoting decent employment and economic expansion. It also fosters environmentally friendly consumption and production, mitigates global warming, and conserves biodiversity. The study involves a comprehensive review of current literature, examining the methodologies including extraction techniques, surface modifications, and manufacturing processes like hand layup, casting, compression molding, hot pressing, and injection molding. The analysis identifies key improvements in mechanical, thermal, and physical properties of coir fiber composites, particularly enhanced tensile strength, thermal stability, and reduced water absorption due to chemical treatments. This confirms previous findings and contributes toward enhancing our understanding that coir fiber is extensively utilized in multiple industries, including housing, construction, transportation, biomedical, wrapping, electrical power, communication technology, biofuel, and bioenergy due to their natural abundance, affordability, ease of shaping, superior durability, and eco-friendly characteristics. Another crucial practical implication is that coir fiber and its composites offer numerous advantages that have significant consequences for the development of coir fiber in various fields.
The role of mechanical engineering in industry: Review and bibliometric analysis Al-Obaidi, Abdulkareem Sh. Mahdi; Husaeni, Dwi Fitria Al; Setiyo, Muji; Nandiyanto, Asep Bayu Dani
Mechanical Engineering for Society and Industry Vol 4 No 3 (2024): Special Issue on Technology Update 2024
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.12619

Abstract

Innovation has shown progress in many sectors, including mechanical engineering which is closely related to industry. Through a literature survey and bibliometric analysis of 1,920 articles sourced from the Scopus database from 2015 to 2024, this paper investigates the role that mechanical engineering plays in industrial progress. The analysis uses VOSviewer for network visualization, overlay, and density maps. According to the findings, mechanical engineering has significantly advanced several important areas, including advanced manufacturing processes, Industry 4.0 and digital transformation, sustainability and circular economy, educational advancement, use of new technologies, and biotechnology innovation. Some of the key findings of this review include the use of digital twins and integrating cyber-physical systems, the use of large-scale 3D printing technology, and the use of sustainable production methods in industry. According to the analysis, the number of publications and citations has increased, with a slight decrease during the COVID-19 pandemic. Visualizing this bibliometric map helps understand current trends, identify potential research areas, and highlight relationships between research issues.
Design, fabrication, and performance testing of an energy storage and return (ESAR) foot prosthesis made of prepreg carbon composite Ismail, Rifky; Nursafitri, Murti Ayu; Fardinansyah, Akmal Putra; Fitriyana, Deni Fajar; Bayuseno, Athanasius Priharyoto; Siregar, Januar Parlaungan; Setiyo, Muji; Istiqomah, Alfiana Fitri; Sulistyo, Sulistyo
Mechanical Engineering for Society and Industry Vol 5 No 1 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.12652

Abstract

The high demand for prosthetics in Indonesia is not followed by the ability and quality of local production to fulfill the community's needs. There is a lack of comprehensive data regarding the specific challenges encountered by local prosthetic manufacturers in Indonesia, particularly in terms of technological limitations. This study aims to understand the effect of design parameters on the performance of the energy storage and return (ESAR) foot prosthesis prototype in normal walking activities for amputees. Three different designs were created according to commercial products, and a convergence test was conducted to ensure accurate results. Finite element method (FEM) analysis was used to determine the amount of deformation that occurred in each design made when applied with 824 N axial force. The ESAR foot prosthesis prototype made from carbon prepreg was fabricated using an out-of-autoclave method, and the mechanical testing was performed with a compressive test. The results indicated that the optimal design for the ESAR foot prosthesis determined by the decision matrix scoring criteria was Design 3. The final scores for Designs 1, 2, and 3 were 54, 53, and 77, respectively. Design 3 is the easiest to manufacture, has the slightest complexity, and the lightest mass, and undergoes the least deformation during simulation, although it is the least attractive. The study found a significant difference in displacement between the deflections obtained from simulation and experiment. This occurred because the prototype was found to have delamination, which decreased the load-bearing ability of the prototype during compressive testing. Compressive testing on the prototype yielded a deflection of 22.695 mm in heel strike and 18.065 mm in toe-off positions, while FEM analysis showed 16.377 mm and 3.912 mm. Therefore, strict quality control is essential, especially when using materials such as carbon prepreg, which are prone to delamination if not properly processed.
Towards decarbonization goals: A Pathway to a sustainable future Kolakoti, Aditya; Setiyo, Muji
Mechanical Engineering for Society and Industry Vol 4 No 2 (2024)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.12871

Abstract

Nature operates on a delicate balance of give and take. However, in the name of development, human activities have disrupted this balance by polluting ecosystems and releasing excessive greenhouse gases into the atmosphere. As a result, global temperatures are reaching unprecedented levels, leading to abrupt climatic changes that pose a significant threat to humanity. Immediate and collective action is essential to ensure the survival of future generations. The adoption of Decarbonization goals offers a promising pathway to mitigate greenhouse gas emissions and reduce the pollution burden on Earth, aiming for substantial progress by 2030.
A New Approach to Measuring Institutional and Researcher Contributions to the SDGs: Combining Data from Elsevier SciVal and VOSviewer Fungky Dyan Pertiwi; Dhimas Cahyo Anindito; Ilham Habibi; Saifudin; Suroto Munahar; Bagiyo Condro Purnomo; Yun Arifatul Fatimah; Budi Waluyo; Muji Setiyo
Advance Sustainable Science Engineering and Technology Vol. 6 No. 4 (2024): August-October
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v6i4.1076

Abstract

The Sustainable Development Goals (SDGs), established by the United Nations in 2015, are a comprehensive global framework that addresses social, economic, and environmental challenges through sustainable development. This study examines the role of universities, specifically focusing on the Department of Mechanical Engineering at Universitas Muhammadiyah Magelang (UNIMMA), in contributing to the SDGs. The study utilized data from Elsevier’s SciVal to analyze the department’s contribution to the SDGs through scientific publications in the Scopus database. A total of 97 out of 156 articles published by nine researchers from the department were found to contribute to various SDGs, with a significant focus on Goals 7 (affordable and clean energy), 17 (partnerships for the goals), 9 (industry, innovation, and infrastructure), and 12 (responsible consumption and production). The study highlights the department’s collaborative efforts and alignment with global sustainability goals. In addition, VOSviewer was used to map the research collaboration network within the department, revealing strong contributions to energy efficiency, sustainable technologies, and climate action. However, the department's research shows limited contribution to social SDGs such as poverty alleviation and gender equality. By mapping the university’s contributions to the SDGs, this study helps faculty members identify opportunities for targeted research collaborations, address gaps in SDG contributions, and enhance partnerships with researchers from other institutions, thus broadening the university’s impact on global sustainable development goals.
Pyrolysis for plastic waste: Environmental goals vs business interests, which is more realistic? Setiyo, Muji; Sunaryo, Sunaryo; Rochman, Muhammad Latifur
Mechanical Engineering for Society and Industry Vol 5 No 1 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.14149

Abstract

Global plastic production exceeds 390 million tons annually, yet only about 9% is recycled, leaving severe environmental impacts. Pyrolysis is emerging as a promising solution, converting plastic waste into fuels and chemicals. However, popular claims on mass media and commercial technology publications, that 1 kg of plastic yields 1 liter of fuel are misleading, as they ignore differences in mass, volume, and fuel density. Pyrolysis oil can indeed serve as fuel but often needs further refining to meet engine standards. Economically, it holds potential, with oil prices ranging from USD 600–900 per ton and syngas generating up to 800 kWh per ton. Nonetheless, high capital and operational costs challenge its feasibility, particularly for small-scale operations. Environmentally, pyrolysis aligns with sustainability and circular economy goals, potentially reducing emissions by up to 3.5 tons of CO₂-equivalent per ton of plastic processed. This paper examines pyrolysis critically, addressing misconceptions and evaluating its realistic prospects as both an environmental solution and a business venture.
Co-Authors Abdul Wahid Jamin Aditya Kolakoti Aditya Kolakoti Aditya Kolakoti Agung Setyo Pambudi Agus Setiawan Ahmad Irfan Al Husaeni, Dwi Fitria Al-Obaidi, Abdulkareem Sh. Mahdi Alper Calam Ambati Vijay Kumar Aminuyati Amir Amir Andi Widiyanto Andrizal Andrizal Andy Efendi Anindito, Dhimas Cahyo Anwar Anwar Anwar Anwar Arif Hidayat Asep Bayu Dani Nandiyanto Asnil Asnil Atanasius Priharyoto Bayuseno Azizah Azizah Azizah, Renata Lintang Azmi, W. H. Azuan Ahmad Bagas Arif Prasetyo Baginda Pangidoan Tanjung Bagiyo Condro P Bagiyo Condro Purnomo BAGYO CONDRO P Bambang Sudarmanta Battal Doğan Bobbili Prasadarao Budi Waluyo Budi Waluyo Capilayan, Mycel A. Chrisna Bagus Edhita Praja Cionita, Tezara Damar Setyo Prakasa Darmawan Rois David Prayogo Derviş Erol Dhandapani, Sathish Dhasa Ikrar Setyanansyach Dhasa Ikrar Setyanansyach Dhimas Cahyo Anindito Dori Yuvenda Dwi Ahmad R Dwi Ahmad Rizani Dwi Restianto Dwi Sudarno Putra Eko Muh Widodo Fahrizin, Nazar Fardinansyah, Akmal Putra Fidelis Ibiang Abam Fitriyana, Deni Fajar Fungky Dyan Pertiwi Fungky Dyan Pertiwi Gaga Putra Setiawan Geeri, Satish Gozali, Muchamad Gunawan Refiadi Hadi, Agung Efriyo Hary Abdul Hakim Hasan Köten Hedi Purnomo Helen Riupassa Hendry Y. Nanlohy Heni Lutfiyati, Heni Heni Setyowati Esti Rahayu Husaeni, Dwi Novia Al Ilham Habibi Ilham Habibi, Ilham Imran, Al Ichlas Indra Chandra Setiawan Istiqomah, Alfiana Fitri Jamaludin Jamaludin Jamiluddin, Jamiluddin Junid, Ramli Karmiadji, Djoko Wahyu Katakam Satyanarayana Khoirudin Khoirudin, Khoirudin Khoirul Fa’i Kivevele, Thomas Kolakoti, Aditya Koto, Rahmat Desman Krismadinata Krismadinata Kusumadewi, Tri Vicca Laksono Trisnantoro Lalank Samudra Mukti Hidayat Leo Utoro Lilik Budiyarto Luki Fahmi Luthfi, Akbar Lutifyati, Heni Macmanus Chinenye Ndukwu Madihah Mohd Saudi Marcin Noga Marliyati Marliyati, Marliyati Martias Martias Mat Rejab, Mohd. Ruzaimi Mehmet Akçay Metta Raghu Moehamad Aman Mohamad Agus Ramly Muchamad Gozali Muhammad Imron Rosyidi Muhammad Iqbal Al-Fikri Muhammad Kunta Biddinika Muhammad Latifur Rochman Muhammad Luthfi Muhammad Mauludin Kharim Muhammad Rizal I Muhammad Rizal Ibrahim Murugan, Veeramanikandan Nanang Apriandi Nasmi Herlina Sari Nor Azwadi Che Sidik Noto Widodo Noto Widodo Noto Widodo Nursafitri, Murti Ayu Nursaputro, Septiantar Tebe Obaidi, Abdulkareem Sh. Mahdi Al Oki Muraza Oktavi Barkah Lukmana Oliver Ibor Inah Olusegun David Samuel Olusegun David Samuel Onyishi Donatus Uchechukwu Peeie, Mohamad Heerwan Bin Pirouzfar, Vahid Prasasti Bayu Aji Pramono Prasetyo, Bagas Arif Prima Nofan Ryastama Purnomo, Hedi Purnomo, Tuessi Ari Purwanto, Wawan Putra, Randi Purnama Ragadhita, Risti Raghu Metta Ragil Widyorini Rahadian Zainul Rahmawan, Muhammad Andi Raja, Thirunavukkarasu Ramli Junid Ray Adhan Brieghtera Refaldy Pristiwantoro Remon Lapisa Remy Uche Rifky Ismail Rifqi Nugroho Riyan Adhy Pratama Riyan Tri Aditya Pamungkas Rizani, Dwi Ahmad Rochman, Muhamad Latifur Roni Muhammad Susanto Rosyidi, Muhammad Imron Rozanna Dewi Rusdjijati, Retno Saifudin Saifudin Saifudin Saifudin Salih Özer Sarikoc, Selcuk Setiawan, Indra Chandra Setyo Widiantoro Shyu, Jin Cherng Siregar, Januar Parlaungan Sofyan Kurniawan Sri Rizki Putri Primandari Sukarman Sukarman Sulistyo Sulistyo Sumarno Adi Subrata Sunaryo Sunaryo Sunaryo Suroto Munahar Susanto, Roni Muhammad Suyitno Suyitno Thirunavukkarasu Raja Thirunavukkarasu Raja Thomas Kivevele Tuessi Ari Purnomo Tymofiiv, Volodymyr Vahid Pirouzfar Wagino Wahyu Danu Romadlon Wahyu Sulistiyo Widha Bagus Fahriansyah Yun Arifatul Fatimah Yusuf Dewantoro Herlambang Zainal Arifin Zulfikar Bagus Pambuko