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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 Jurnal Bisnis dan Kewirausahaan 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 Muhamadiyah Magelang
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 Economics, Econometrics & Finance 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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Dynamical Behavior of Droplet Diffusion Flame of Blended Castor Oil with Metal Based Liquid Catalyst Hendry Y. Nanlohy; Selcuk Sarikoc; Muji Setiyo
Automotive Experiences Vol. 7 No. 2 (2024)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.11510

Abstract

The tests revealed the exceptional combustion properties of a blended fuel consisting of castor oil and rhodium liquid (Rhl) as a highly effective homogeneous combustion catalyst. Our findings indicate that castor oil's unique molecular structure makes it an ideal fuel component, and the catalyst interacts with the fuel's triglycerides to enhance fuel properties and facilitate ignition.These findings support the pivotal role of the synthetic catalyst Rhl, which effectively reduces the binding forces within the triglyceride chain through polarization interactions. As a result, molecular bonds become more flexible, providing electrons with greater freedom of movement. Synthetic catalysts induce significant modifications in the triglyceride structure, increasing electron energy levels and enhancing the reactivity of fuel molecules, ultimately leading to improved fuel combustion efficiency. Integrating the Rhl synthetic catalyst also enhances fuel performance by reducing ignition duration and increasing the combustion rate. The elevated combustion temperatures of the fuel droplets highlight the effectiveness of promoting environmentally sustainable combustion processes.
Research Trends of Electric Vehicles (EVs) in Indonesia, Malaysia, and Thailand: A Quick Analysis using Bibliometric Muji Setiyo; Indra Chandra Setiawan; Mohamad Heerwan Bin Peeie
Automotive Experiences Vol. 8 No. 1 (2025)
Publisher : Universitas Muhammadiyah Magelang

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.
Smart and Sustainable Mobility: A Systematic Review of Industry 4.0 Applications in Automotive Sustainability, Alternative Fuels, and EV Charging Systems Wagino Wagino; Mycel A. Capilayan; Muji Setiyo; Volodymyr Tymofiiv; Dwi Sudarno Putra; Dori Yuvenda; Rahmat Desman Koto
Automotive Experiences Vol. 8 No. 3 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.13431

Abstract

This systematic review analyzes the integration of Industry 4.0 technologies in sustainable manufacturing and clean energy technology within the automotive industry, focusing on electric vehicle infrastructure development and renewable energy implementation. Through a comprehensive analysis of 25 selected articles from 200 articles (10 sustainability articles, 12 alternative fuels, and 3 electric vehicle charging stations articles) published between 2018 and 2024, this study employs PRISMA methodology combined with bibliometric content and scientometric analysis. The review reveals significant temporal evolution in research focus, progressing from basic energy efficiency studies (2018-2020) to enhanced Industry 4.0 technology integration (2020-2022), culminating in strong convergence between renewable energy implementation, smart infrastructure development, and circular economy principles (2022-2024). Key findings highlight the critical role of AI, IoT, and blockchain in enabling sustainable manufacturing processes and smart grid integration for EV infrastructure. Integrating hybrid energy storage systems with clean energy technologies is crucial for addressing energy transition challenges and reducing fossil-fuel dependence. The study identifies research gaps in comprehensive methodological approaches integrating technical innovation, sustainable manufacturing, and climate action considerations, particularly in developing regions. Future research opportunities include machine learning applications for dynamic energy system optimization and innovative business models supporting sustainable technology implementation across various socio-economic contexts. This review contributes to understanding technology integration patterns in sustainable transportation systems. It provides strategic recommendations for researchers, industry practitioners, and policymakers in advancing low-carbon mobility solutions and resilient infrastructure development.
Enhancing heat transfer performance of automotive car radiator using camphor nanoparticles: experimental study with bibliometric analysis Aditya Kolakoti; Muji Setiyo; Dwi Novia Al Husaeni; Asep Bayu Dani Nandiyanto
Teknomekanik Vol. 6 No. 2 (2023): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/teknomekanik.v6i2.25072

Abstract

In this study, an attempt was made to investigate the heat transfer performance of a four-wheeler automotive radiator using a novel coolant system. To support this study, we also added bibliometric analysis to show the importance of this study. In the experiments, camphor nanoparticles (sizes of 511 nm) with various loadings (i.e. 2, 4, 6, and 8%) were mixed with deionized water (DW) to create a coolant. The experiments were conducted at different heat convection processes (i.e. 0.5, 1.45, and 3.7 m/s). The significant heat transfer performance parameters, such as Reynolds number (Re), Nusselt number (Nu), overall heat transfer coefficient (U), and heat transfer rate (Q), were examined. The Fourier Transform Infrared results revealed the presence of significant functional groups in the coolant system. camphor nanoparticles dispersed in DW were stable for more than 8 hours. At 70 ᵒC, the novel coolant (2% camphor nanoparticles in DW) exhibits better Re, Nu, U, and Q than that using pure DW or other loadings of nanoparticles (e.g. 4, 6, and 8%). The high percentage of camphor nanoparticles in DW restricts the fluid flow, resulting in a drop in overall heat transfer performance. Finally, low-cost, easily available, and eco-friendly camphor nanoparticles (2%) are suggested as a better choice in lieu of high-cost metallic and non-metallic nanoparticles as an additive in the coolant system.
Vapor compression refrigeration system with air and water cooled condenser: Analysis of thermodynamic behavior and energy efficiency ratio Muji Setiyo; Retno Rusdjijati; Ilham Habibi; Muhamad Latifur Rochman; Bagiyo Condro Purnomo; Fungky Dyan Pertiwi; Budi Waluyo; Rifky Ismail; Aditya Kolakoti
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.
Carbon black: Production, properties, and utilization Mohamad Agus Ramly; Muji Setiyo
Mechanical Engineering for Society and Industry Vol. 3 No. 1 (2023)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.8821

Abstract

As of today, only a few people know about carbon black. Their knowledge and understanding are also limited to the fact that carbon is charcoal from coconut shells or black activated carbon. In addition, some people only know carbon as carbon copy and ink material. On the other hand, there is another type of carbon that comes from oil content and can be used for various industrial purposes. This carbon is produced and used with advanced and modern technology, which is called carbon black. Currently, by looking at the market signal, carbon black has become a very profitable commodity. Carbon black industries develop systems and technologies to produce the best quality with minimized environmental effects. In fact, because of the promising price and high market demand, carbon black factories invest in advanced production equipment. In its development, through continuous research and by utilizing advances in industrial technology, currently, carbon black can be added to various materials to improve the physical, electrical, or optical properties of the material.
Performance and emission of a spark-ignition engine using gasoline-plastic pyrolysis oil blends Sunaryo Sunaryo; Suyitno Suyitno; Zainal Arifin; Muji Setiyo
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.
Towards decarbonization goals: A Pathway to a sustainable future Aditya Kolakoti; Muji Setiyo
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.
Simulasi Perencanaan Usaha Bengkel Sepeda Motor: Studi Kasus Kacling Otomotif Budiyanto; Muji Setiyo
Jurnal Bisnis dan Kewirausahaan Vol. 22 No. 2 (2026): JBK-Jurnal Bisnis dan Kewirausahaan
Publisher : Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/jbk.v22i2.142-169

Abstract

The rapid growth of motorcycle ownership in Indonesia has created a substantial demand for maintenance and repair services, offering promising opportunities for small and medium-sized enterprises (SMEs) in the automotive service sector. This study aims to develop a comprehensive business plan for Kacling Otomotif, a motorcycle workshop in Magelang, through customer satisfaction analysis, financial feasibility evaluation, and SWOT mapping. Primary data were collected from 108 respondents (55 existing customers and 53 general respondens). The survey results reveal high satisfaction in terms of reliability and responsiveness, while weaknesses remain in physical facilities and waiting room comfort. Financial analysis indicates positive Net Present Value (NPV) across all scenarios, with values of IDR 61.4 million (pessimistic), IDR 246.6 million (moderate), and IDR 431.8 million (optimistic). The Internal Rate of Return (IRR) exceeds prevailing bank interest rates, and the Payback Period (PP) is achieved within 11–24 months, confirming the business’s financial viability. SWOT analysis suggests that development strategies should emphasize digital service innovation, improved customer facilities, and the adoption of modern management practices. Overall, the study demonstrates that motorcycle workshop business planning in Indonesia is not only financially feasible but also holds sustainable growth prospects when supported by adaptive and innovative strategies.
Co-Authors Abdul Wahid Jamin Abdulkareem Sh. Mahdi Al Obaidi Aditya Kolakoti Aditya Kolakoti Aditya Kolakoti Aditya Kolakoti Aditya Kolakoti Aditya Kolakoti Agung Setyo Pambudi Agus Setiawan Ahmad Irfan Akmal Putra Fardinansyah Al Husaeni, Dwi Fitria Al-Obaidi, Abdulkareem Sh. Mahdi Alfiana Fitri Istiqomah Alper Calam Ambati Vijay Kumar Amir Amir Andi Widiyanto Andrizal Andrizal Andy Efendi Anwar Anwar Anwar Anwar Arif Hidayat Asep Bayu Dani Nandiyanto Asnil Asnil Athanasius Priharyoto Bayuseno Azizah Azizah Azizah, Renata Lintang Azmi, W. H. Azuan Ahmad Bagas Arif Prasetyo Baginda Pangidoan Tanjung Bagiyo Condro P Bagiyo Condro Purnomo Bagiyo Condro Purnomo BAGYO CONDRO P Bambang Sudarmanta Battal DoÄŸan Bobbili Prasadarao Budi Waluyo Budi Waluyo Budi Waluyo Budiyanto Chrisna Bagus Edhita Praja Cionita, Tezara Damar Setyo Prakasa Darmawan Rois David Prayogo DerviÅŸ Erol Dhasa Ikrar Setyanansyach Dhasa Ikrar Setyanansyach Dhimas Cahyo Anindito Dori Yuvenda Dwi Ahmad R Dwi Ahmad Rizani Dwi Novia Al Husaeni Dwi Restianto Dwi Sudarno Putra Eko Muh Widodo Eko Muh Widodo Fahrizin, Nazar Fidelis Ibiang Abam Fitriyana, Deni Fajar Fungky Dyan Pertiwi 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 Habibi, Ilham Imran, Al Ichlas Indra Candra Setiawan Indra Chandra Setiawan Jamaludin Jamaludin Jamiluddin, Jamiluddin Januar Parlaungan Siregar Jin Cherng Shyu Junid, Ramli Karmiadji, Djoko Wahyu Katakam Satyanarayana Khoirudin Khoirudin, Khoirudin Khoirul Fa’i Kivevele, Thomas Kolakoti, Aditya 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 Margana Margana Marliyati Marliyati Martias Martias Mat Rejab, Mohd. Ruzaimi Mehmet Akçay Metta Raghu Moehamad Aman Moehamad Aman Mohamad Agus Ramly Mohamad Heerwan Bin Peeie Muchamad Gozali Muhamad Latifur Rochman Muhammad Imron Rosyidi Muhammad Iqbal Al-Fikri Muhammad Kunta Biddinika Muhammad Latifur Rochman Muhammad Luthfi Muhammad Mauludin Kharim Muhammad Rizal I Muhammad Rizal Ibrahim Murti Ayu Nursafitri Mycel A. Capilayan Nanang Apriandi Nanda Ferdiansyah Nasmi Herlina Sari Nor Azwadi Che Sidik Noto Widodo Noto Widodo Noto Widodo Oki Muraza Oktavi Barkah Lukmana Oliver Ibor Inah Olusegun David Samuel Olusegun David Samuel Onyishi Donatus Uchechukwu 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 Rahmat Desman Koto Rahmawan, Muhammad Andi Raja, Thirunavukkarasu Ramli Junid Ray Adhan Brieghtera Refaldy Pristiwantoro Remon Lapisa Remy Uche Retno Rusdjijati Rifky Ismail Rifky Ismail 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 Sathish Dhandapani Selcuk Sarikoc Septiantar Tebe Nursaputro Setyo Widiantoro 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 Thirunavukkarasu Raja Thomas Kivevele Tuessi Ari Purnomo Vahid Pirouzfar Veeramanikandan Murugan Volodymyr Tymofiiv Wagino Wagino Wahyu Danu Romadlon Wahyu Sulistiyo Widha Bagus Fahriansyah Yun Arifatul Fatimah Yusuf Dewantoro Herlambang Zainal Arifin Zulfikar Bagus Pambuko