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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 Prosiding Semnastek Indonesian Journal of Science and Technology Jurnal Penjaminan Mutu Journal of Community Services and Engagement Jurnal Elemen Community Empowerment Community Empowerment Advance Sustainable Science, Engineering and Technology (ASSET) Jurnal Teknik Mesin 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

Muji Setiyo

Universitas Muhammadiyah Magelang, Magelang, Indonesia

Author-ID : 377488

Aerospace Engineering 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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Comprehensive Analysis of Minibuses Gravity Center: A Post-Production Review for Car Body Industry Djoko Wahyu Karmiadji; Muchamad Gozali; Muji Setiyo; Thirunavukkarasu Raja; Tuessi Ari Purnomo
Mechanical Engineering for Society and Industry Vol 1 No 1 (2021)
Publisher : Universitas Muhammadiyah Magelang

The center of gravity (CoG) on the minibus is one of the fundamental parameters that affect the operation of the vehicle to maintain traffic safety. CoG greatly affects vehicle maneuverability due to load transfer between the front and rear wheels, such as when turning, braking, and accelerating. Therefore, this research was conducted to evaluate the operational safety of minibusses produced by the domestic car body industry. The case study was conducted on a minibus with a capacity of 30 passengers to be used in a mining area. Investigations on CoG were carried out based on the minibus specification data, especially the dimensions and forces acting on the wheels. Minibusses as test objects were categorized in two conditions, namely without passengers and with 30 passengers. The test results are expressed in a coordinate system (x, y, z) which represents the longitudinal, lateral, and vertical distances to the center of the front wheel axle. CoG coordinate values without passengers are (2194.92; 7.11; 1327.97) mm and CoG coordinates with full passengers (30 people) are (2388.52; 13.04; 1251.72) mm. The test results show that the change in CoG at full load is not significant which indicates the minibus is safe when maneuvering under normal conditions.

Industry 4.0: Challenges of Mechanical Engineering for Society and Industry Muji Setiyo; Tuessi Ari Purnomo; Dori Yuvenda; Muhammad Kunta Biddinika; Nor Azwadi Che Sidik; Olusegun David Samuel; Aditya Kolakoti; Alper Calam
Mechanical Engineering for Society and Industry Vol 1 No 1 (2021)
Publisher : Universitas Muhammadiyah Magelang

Today, in the industry 4.0 era, the boundaries of scientific disciplines are blurred, everything seems to be interrelated and shows the ability to be combined. Intelligent sensors combined with Artificial Intelligence (AI) have demonstrated their ability to influence processes, design, and maintenance in manufacturing systems. Mechanical engineering tasked with solving complex engineering problems must be able to adapt to this transformation, especially in the use of digital and IT to combine the principles of physics and engineering mathematics with materials science to design, analyze, manufacture, and maintain mechanical systems. On the other hand, mechanical engineering must also contribute to a better future life. Therefore, one of the keys to consistently playing a role is to think about sustainability, in order to provide benefits for society and industry, in any industrial era.

Biodiesel Production from Waste Cooking Oil: Characterization, Modeling and Optimization Aditya Kolakoti; Muji Setiyo; Budi Waluyo
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 | DOI: 10.31603/mesi.5320

In this study, waste and discarded cooking oils (WCO) of palm, sunflower, rice bran and groundnut oils are collected from local restaurants. The high viscous WCO was converted into waste cooking oil biodiesel (WCOBD) by a single-stage transesterification process. During the transesterification process, the important parameters which show a significant change in biodiesel yield are studied using the optimization tool of response surface methodology (RSM). Results reported that 91.30% biodiesel yield was achieved within L18 experiments and NaOH catalyst was identified as the most influential parameter on WCOBD yield. Artificial Intelligence (AI) based modeling was also carried out to predict biodiesel yield. From AI modeling, a predicted yield of 92.88% was achieved, which is 1.70% higher than the RSM method. These results reveal the prediction capabilities and accuracy of the chosen modeling and optimization methods. In addition, the significant fuel properties are measured and observed within the scope of ASTM standards (ASTMD6751) and fatty acid profiles from chromatography reveal the presence of high unsaturated fatty acids in WCOBD. Therefore, utilizing the waste cooking oils for biodiesel production can mitigate the global challenges of environmental and energy paucity.

The Role of Composites for Sustainable Society and Industry Ragil Widyorini; Nasmi Herlina Sari; Muji Setiyo; Gunawan Refiadi
Mechanical Engineering for Society and Industry Vol 1 No 2 (2021)
Publisher : Universitas Muhammadiyah Magelang

In the last few decades, the global community's demands are getting stronger for more environmentally friendly materials. Natural fiber reinforced composites have been applied as reinforcement in concrete, sound absorbers, buildings, aeronautical, aerospace, sanitation, electronics, bridge decks, interior, automotive, sports equipment and furniture industries, modular structures, and others. Natural fibers are receiving high attention due to their sustainability, environmental friendliness, low density, low cost, low abrasiveness, renewability, and biodegradability, as well as contributing to the consumption of CO2 gas. As reported by many researchers, Indonesia has several natural resources for natural fibers such as bark fiber, leaf fiber, seed/fruit fiber, grass fiber, stalk fiber, and wood fiber.

Design and Implementation of Sterilization Chamber with Ozone and UV-C Light to Break the Transmission of Covid-19 Muhammad Latifur Rochman; Lilik Budiyarto; Muhammad Iqbal Al-Fikri; Khoirul Fa’i; Prasasti Bayu Aji Pramono; Riyan Tri Aditya Pamungkas; Baginda Pangidoan Tanjung; Refaldy Pristiwantoro; Widha Bagus Fahriansyah; Agung Setyo Pambudi; Ahmad Irfan; Riyan Adhy Pratama; Lalank Samudra Mukti Hidayat; Setyo Widiantoro; Darmawan Rois; Muhammad Mauludin Kharim; Wahyu Danu Romadlon; Dwi Restianto; Muji Setiyo; Budi Waluyo; Bagiyo Condro Purnomo; Suroto Munahar; Noto Widodo; Saifudin Saifudin
Urecol Journal. Part D: Applied Sciences Vol. 1 No. 1 (2021): January - June
Publisher : Konsorsium LPPM Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY

The emergence of Corona Virus Disease 19 (Covid-19) required a new method to control its spread. During this time, controlling COVID-19 was carried out by implementation of a sterilization chamber using a liquid-based disinfectant. However, the use of liquid-based disinfectants has been evaluated to be less effective because it allows disrupting the respiratory tract. Therefore, this work presents a negative pressure sterilization chamber using Ozone and UV-C lamp. Ozone has been recommended by the Indonesian Institute of Sciences (LIPI) as a substitute for liquid-based disinfectants. In addition, to maximize performance, the chambers are added with UV-C lamps. The negative pressure sterilization chamber with Ozone and ultraviolet lamps was successfully created with the main parts of the cubicle chamber, an Ozone generator, at least one ultraviolet lamp, exhaust fan, switch, and a timer. The negative pressure sterilization chamber with Ozone and ultraviolet lamps according to this work, where the Ozone supply from the Ozone generator is made automatically to the door opening and closing. The duration of the Ozone supply was regulated by a timer. Then, the ultraviolet lamp can be activated together with Ozone or independently. With the implementation of this sterilization chamber, the spread of the Covid-19 virus is expected to be suppressed in a safer way than using liquid-based disinfectants.

An encouragement to publish powerful studies on innovation in health: A journal preface Muji Setiyo; Heni Setyowati Esti Rahayu; Sumarno Adi Subrata
Innovation in Health for Society Vol 1 No 1 (2021): January - June
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ihs.5316

The health manifesto highlighted that studies on innovation flourish when all sides of the knowledge triangle (research, academia, and industry) work in tandem to enhance the quality of care. This opportunity should go much better than implementing theoretical and academic work in universities worldwide. Experts are developing health innovation in higher education to deal with this situation. Therefore, this preface from two experts in the field encourages the importance of publishing studies on innovation in health to reduce health problems and issues in healthcare services in clinical or community practice. Keywords: Innovation; healthcare system; quality of care; clinical practice; community care

Experimental studies on in-cylinder combustion, exergy performance, and exhaust emission in a Compression Ignition engine fuelled with neat biodiesels Aditya Kolakoti; Ambati Vijay Kumar; Raghu Metta; Muji Setiyo; Muhammad Latifur Rochman
Indonesian Journal of Science and Technology Vol 7, No 2 (2022): IJOST: VOLUME 7, ISSUE 2, September 2022
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ijost.v7i2.49680

In the last decade, the search for cleaner fuels like biodiesels is gaining wide popularity, and exergy analysis are widely used in design and performance evaluation to identify the various losses. In this study, three neat biodiesels are tested for energy and exergetic performance in a single-cylinder, four-stroke IDI diesel engine. The experiments are conducted for waste poultry fat biodiesel (WPFBD), palm oil biodiesel (POBD), and waste cooking oil biodiesel (WCOBD) at various loads by maintaining a fixed rpm of 1500. Parameters like exergetic efficiency, exergy destruction, and various heat loss factors are computed from the thermodynamic models. The in-cylinder combustion pressures, heat release rate, and fuel consumption are also measured. Results show that WCOBD dominates the other two biodiesels by achieving high exergetic efficiency (52.74%) and low exergetic destruction (3.74 kJ). The in-cylinder combustion pressures and net heat release for WCOBD show smoother combustion with better torque conversion. In contrast, POBD shows high fuel consumption and more unaccounted heat losses. Better utilization of heat input by converting it into useful work was achieved for WCOBD at 75 and 100% loads. Similarly, the exhaust emissions from WCOBD compared with diesel fuel at all the loads reveal that except for NOx, there is a drastic reduction of CO, UHC, and exhaust smoke.

Combustion and Emission Characteristics of CNG-Diesel Dual Fuel Engine with Variation of Air Fuel Ratio Dori Yuvenda; Bambang Sudarmanta; Jamaludin Jamaludin; Oki Muraza; Randi Purnama Putra; Remon Lapisa; Krismadinata Krismadinata; Rahadian Zainul; Asnil Asnil; Muji Setiyo; Sri Rizki Putri Primandari
Automotive Experiences Vol 5 No 3 (2022)
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.7807

Compressed natural gas (CNG) is a popular alternative fuel because of its more environmentally friendly properties than fossil fuels , including applications in diesel engines. However, supplying too much compressed natural gas fuel causes poor engine performance and emissions due to a decrease in the air-fuel ratio on the dual-fuel engine. The addition of air using electric superchargers was done to return the air-fuel ratio to ideal conditions. Lambda value (λ) was variation under low load (1.52 to 2.71), medium load (1.18 to 2.17), and high load (0.94 to 2.17) on a CNG-diesel dual fuel engine. The addition of pure air in each load can increase combustion stability in certain lambda, which was indicated by an increase in thermal efficiency, heat release rate, and a decrease in ignition delay, combustion duration, hydrocarbon, and carbon monoxide emissions.

Evaluasi Ketercapaian Standar Penjaminan Mutu Penelitian Di Program Studi D3 Mesin Otomotif Universitas Muhammadiyah Magelang Dengan Metode Indeks Muji Setiyo; Budi Waluyo; Saifudin; Bagiyo Condro Purnomo; Suroto Munahar; Noto Widodo; Retno Rusdjijati
Jurnal Penjaminan Mutu Vol 4 No 01 (2018)
Publisher : UHN IGB Sugriwa Denpasar

In the past decade, the general method for measuring the performance of research and scientific publications in a Study Program at a Higher Education is by the Rough Value (Nilai Kasar, NK) calculated per three years. This value is derived from the accreditation instrument. In fact, the calculation of the performance of research and scientific publications with NK cannot represent an annual performance. Therefore, this paper presents a new method for calculating research and scientific publications performance with an index (IP-PS and IPub-PS), which is calculated annually. An example of quality measurement practice in the Automotive Diploma Program of Universitas Muhammadiyah Magelang. As a result, calculations with IP-PS and IPub-PS are more likely to present real conditions per year than using NK.

The Concise Latest Report on the Advantages and Disadvantages of Pure Biodiesel (B100) on Engine Performance: Literature Review and Bibliometric Analysis Muji Setiyo; Dori Yuvenda; Olusegun David Samuel
Indonesian Journal of Science and Technology Vol 6, No 3 (2021): IJOST: VOLUME 6, ISSUE 3, December 2021
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ijost.v6i3.38430

Currently, many countries are promoting B100 as the main fuel for diesel engines towards the transition to 100% renewable energy applications. However, due to its properties, B100 has both advantages and disadvantages to replace diesel oil. Therefore, a bibliometric analysis was carried out to evaluate the performance and emissions of a diesel engine with the B100 being tested on a multi-cylinder diesel engine for cars. Unfortunately, only 12 of the 127 selected articles are eligible to be reviewed in detail and none of them discusses all the key performance of diesel engines which include Brake Thermal Efficiency (BTE), Specific Fuel Consumption (SFC), Cylinder Pressure (CPs), Heat Release Rate (HRR), NOx, and smoke. Through data synthesis, we found that the use of B100 provides advantages in engine noise, thermal efficiency, specific fuel consumption, and emissions under certain engine loads. On the other hand, it also has the potential to result in poorer performance, if there is no modification to engine components and the addition of additives. As a recommendation, the results of this analysis provide a guide for further research to examine the use of B100 with all diesel engine performance variables. Research paths can be developed with the wider potential to provide new arguments on various diesel engine technologies, engine capacities, B100 raw materials, and test environments.

Co-Authors Abdul Wahid Jamin Aditya Kolakoti Aditya Kolakoti Aditya Kolakoti Agung Setyo Pambudi Agus Setiawan Ahmad Irfan Alper Calam Ambati Vijay Kumar Andi Widiyanto Andrizal Andrizal Andy Efendi Anwar Anwar Anwar Anwar Asnil Asnil 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 Chrisna Bagus Edhita Praja Damar Setyo Prakasa Darmawan Rois David Prayogo Derviş Erol Dhasa Ikrar Setyanansyach Dhasa Ikrar Setyanansyach Dori Yuvenda Dwi Ahmad R Dwi Ahmad Rizani Dwi Restianto Eko Muh Widodo Gaga Putra Setiawan Gozali, Muchamad Gunawan Refiadi Hary Abdul Hakim Hasan Köten Hedi Purnomo Heni Lutfiyati, Heni Heni Setyowati Esti Rahayu Indra Chandra Setiawan Jamaludin Jamaludin Jin Cherng Shyu Junid, Ramli Karmiadji, Djoko Wahyu Katakam Satyanarayana Khoirul Fa’i Kivevele, Thomas Krismadinata Krismadinata Laksono Trisnantoro Lalank Samudra Mukti Hidayat Leo Utoro Lilik Budiyarto Luki Fahmi Luthfi, Akbar Lutifyati, Heni Madihah Mohd Saudi Marcin Noga Margana Margana Marliyati Marliyati Martias Martias 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 Nanang Apriandi Nasmi Herlina Sari Nor Azwadi Che Sidik Noto Widodo Noto Widodo Noto Widodo Oki Muraza Oktavi Barkah Lukmana Olusegun David Samuel Olusegun David Samuel Pirouzfar, Vahid Prasasti Bayu Aji Pramono Prasetyo, Bagas Arif Prima Nofan Ryastama Purnomo, Hedi Purnomo, Tuessi Ari Raghu Metta Ragil Widyorini Rahadian Zainul Rahmawan, Muhammad Andi Raja, Thirunavukkarasu Ramli Junid Randi Purnama Putra Ray Adhan Brieghtera Refaldy Pristiwantoro Remon Lapisa Rifqi Nugroho Riyan Adhy Pratama Riyan Tri Aditya Pamungkas Rizani, Dwi Ahmad Roni Muhammad Susanto Rosyidi, Muhammad Imron Rusdjijati, Retno Saifudin Saifudin Saifudin Saifudin Salih Özer Setyo Widiantoro Sofyan Kurniawan Sri Rizki Putri Primandari Sumarno Adi Subrata Suroto Munahar Susanto, Roni Muhammad Thirunavukkarasu Raja Thirunavukkarasu Raja Thomas Kivevele Tuessi Ari Purnomo Vahid Pirouzfar Wahyu Danu Romadlon Wahyu Sulistiyo Widha Bagus Fahriansyah Yusuf Dewantoro Herlambang Zulfikar Bagus Pambuko

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