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Emissions Analysis of Railway Transportation in Java Island Indonesia for Climate Change Mitigation – Study Case in 2023

DOI : 10.5614/j.eng.technol.sci.2026.58.1.3

Emilya Nurjani ⁽¹⁾, Bernadetta Indri Dwi Astuti ⁽²⁾, Anugrah Jorgi Firmansyah ⁽³⁾, Annisa Ayu Fawzia ⁽⁴⁾, Andung Bayu Sekaranom ⁽⁵⁾, Utia Suarma ⁽⁶⁾

(1) Departement of Environmental Geography, Faculty of Geography, Universitas Gadjah Mada, Kaliurang Street, Sekip Utara, Sinduadi, Mlati, Sleman, Daerah Istimewa Yogyakarta 55281, Indonesia ,

(2) Master Program in Geography, Faculty of Geography, Universitas Gadjah Mada, Kaliurang Street, Sekip Utara, Sinduadi, Mlati, Sleman, Daerah Istimewa Yogyakarta 55281, Indonesia ,

(3) Master Program in Geography, Faculty of Geography, Universitas Gadjah Mada, Kaliurang Street, Sekip Utara, Sinduadi, Mlati, Sleman, Daerah Istimewa Yogyakarta 55281, Indonesia ,

(4) Master Progam in Environmental Science, Postgraduate School, Universitas Gadjah Mada, Teknika Utara Street, Pogung Kidul, Sinduadi, Mlati, Sleman, Daerah Istimewa Yogyakarta 55284, Indonesia ,

(5) Departement of Environmental Geography, Faculty of Geography, Universitas Gadjah Mada, Kaliurang Street, Sekip Utara, Sinduadi, Mlati, Sleman, Daerah Istimewa Yogyakarta 55281, , Indonesia ,

(6) Departement of Environmental Geography, Faculty of Geography, Universitas Gadjah Mada, Kaliurang Street, Sekip Utara, Sinduadi, Mlati, Sleman, Daerah Istimewa Yogyakarta 55281, , Indonesia

31-46

Abstract : 872

PDF : 858

DOI : 10.5614/j.eng.technol.sci.2026.58.1.3

DOI: https://doi.org/10.5614/j.eng.technol.sci.2026.58.1.3

Urbanization and Consequent Carbon Footprints from Transportation and Construction Sector in Malaysia after Industrial Revolution 4.0

DOI : 10.5614/j.eng.technol.sci.2024.56.4.1

Muhammad Ali Musarat ⁽¹⁾, Wesam Salah Alaloul ⁽²⁾, Hamna Bukhari ⁽³⁾, Saba Ayub ⁽⁴⁾, Thiong Samuel Ateny Thiong ⁽⁵⁾

(1) Department of Civil and Environmental Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Perak, Malaysia , Malaysia ,

(2) Department of Civil and Environmental Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Perak, Malaysia , Malaysia ,

(3) Offshore Engineering Centre, Institute of Autonomous System, Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Perak, Malaysia, Pakistan ,

(4) Offshore Engineering Centre, Institute of Autonomous System, Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Perak, Malaysia, Malaysia ,

(5) Department of Civil and Environmental Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Perak, Malaysia , Malaysia

439-449

Abstract : 1449

PDF : 577

DOI : 10.5614/j.eng.technol.sci.2024.56.4.1

DOI: https://doi.org/10.5614/j.eng.technol.sci.2024.56.4.1

Flash Emissions from Acrylonitrile Storage Tank and Their Impact on Ambient Air Quality

DOI : 10.5614/j.eng.technol.sci.2026.58.2.9

Pornpavit Mapraditkul ⁽¹⁾, Peemapat Jookjantra ⁽²⁾, Pavaris Charuchitsopon ⁽³⁾, Korn Premrungchet ⁽⁴⁾, Sirapong Sooktawee ⁽⁵⁾, Sarawut Thepanondh ⁽⁶⁾

(1) Department of Sanitary Engineering, Faculty of Public Health, Mahidol University, Ratchawithi Road, Bangkok 10400, Thailand ,

(2) Department of Sanitary Engineering, Faculty of Public Health, Mahidol University, Ratchawithi Road, Bangkok 10400, Thailand ,

(3) Department of Sanitary Engineering, Faculty of Public Health, Mahidol University, Ratchawithi Road, Bangkok 10400, Thailand ,

(4) Department of Sanitary Engineering, Faculty of Public Health, Mahidol University, Ratchawithi Road, Bangkok 10400, Thailand ,

(5) Department of Climate Change and Environment, Climate Change and Environmental Research Center, Ministry of Natural Resources and Environment, Rama VI Road, Bangkok 10400, , Thailand ,

(6) Department of Sanitary Engineering, Faculty of Public Health, Mahidol University, Ratchawithi Road, Bangkok 10400, Thailand

274-286

Abstract : 782

PDF : 289

DOI : 10.5614/j.eng.technol.sci.2026.58.2.9

DOI: https://doi.org/10.5614/j.eng.technol.sci.2026.58.2.9

The Effect of Ignition Timing on Combustion of Ammonia/Ethanol Mixtures in Spark-Assisted Compression Ignition Engine with a Sub-chamber

DOI : 10.5614/j.eng.technol.sci.2025.57.6.1

Takanobu Okada ⁽¹⁾, Mitsuhisa Ichiyanagi ⁽²⁾, Emir Yilmaz ⁽³⁾, Takashi Suzuki ⁽⁴⁾, Hikaru Shiraishi ⁽⁵⁾, Eric Le Roy Ngwompe Souop ⁽⁶⁾, Evan Widjaja ⁽⁷⁾, Jason Sutedjo ⁽⁸⁾, Christian Dennis Marcelo ⁽⁹⁾, Ferdinand Ronaldo Tjiotijono ⁽¹⁰⁾, Gabriel Jeremy Gotama ⁽¹¹⁾, Willyanto Anggono ⁽¹²⁾

(1) Postgraduate School of Science and Technology, Sophia University, Tokyo 102-8554, Japan ,

(2) Department of Engineering and Applied Sciences, Faculty of Science and Technology, Sophia University, Tokyo 102-8554, , Japan ,

(3) Department of Engineering and Applied Sciences, Faculty of Science and Technology, Sophia University, Tokyo 102-8554, , Japan ,

(4) Department of Engineering and Applied Sciences, Faculty of Science and Technology, Sophia University, Tokyo 102-8554, , Japan ,

(5) Department of Engineering and Applied Sciences, Faculty of Science and Technology, Sophia University, Tokyo 102-8554, , Japan ,

(6) Graduate School of Science and Technology, Sophia University, Tokyo 102-8554, Japan ,

(7) Mechanical Engineering Department, Petra Christian University, Surabaya 60236, Indonesia ,

(8) Mechanical Engineering Department, Petra Christian University, Surabaya 60236, Indonesia ,

(9) Mechanical Engineering Department, Petra Christian University, Surabaya 60236, Indonesia ,

(10) Graduate School of Science and Technology, Sophia University, Tokyo 102-8554, Japan ,

(11) Centre for Sustainable Energy Studies, Petra Christian University, Surabaya 60236, , Indonesia ,

(12) Mechanical Engineering Department, Petra Christian University, Surabaya 60236, Indonesia

735-746

Abstract : 1587

PDF : 1294

DOI : 10.5614/j.eng.technol.sci.2025.57.6.1

DOI: https://doi.org/10.5614/j.eng.technol.sci.2025.57.6.1

Enhancing Random Forest Model Accuracy using GridSearchCV Optimization for Predicting Multi-Cylinder Engine Performance with Hydrogen-Enriched Natural Gas Blends

DOI : 10.5614/j.eng.technol.sci.2025.57.5.9

Prasanna S Sutar ⁽¹⁾, Ravi Sekhar ⁽²⁾, Shailesh B Sonawane ⁽³⁾, Debjyoti Bandyopadhyay ⁽⁴⁾, Sandeep D Rairikar ⁽⁵⁾, Sukrut S Thipse ⁽⁶⁾, Hiranmayee Ganorkar ⁽⁷⁾, Aryan V. Kadam ⁽⁸⁾

(1) Research Scholar, Symbiosis Institute of Technology (SIT), Pune Campus, Symbiosis International (Deemed University) (SIU), Pashan-Sus Road, Pune, 412115, Maharashtra, India ,

(2) Symbiosis Institute of Technology (SIT), Pune Campus, Symbiosis International (Deemed University) (SIU), Pashan-Sus Road, Pune, 412115, Maharashtra, India ,

(3) The Automotive Research Association of India (ARAI), Vetal Hill, Off-Paud Road, Pune 411038, Maharashtra, , India ,

(4) The Automotive Research Association of India (ARAI), Vetal Hill, Off-Paud Road, Pune 411038, Maharashtra, , India ,

(5) The Automotive Research Association of India (ARAI), Vetal Hill, Off-Paud Road, Pune 411038, Maharashtra, , India ,

(6) The Automotive Research Association of India (ARAI), Vetal Hill, Off-Paud Road, Pune 411038, Maharashtra, , India ,

(7) Technovuus, ARAI, Vetal Hill, Off-Paud Road, Pune 411038, Maharashtra, , India ,

(8) San Jose State University, San Jose, California, , United States

688-712

Abstract : 632

PDF : 498

DOI : 10.5614/j.eng.technol.sci.2025.57.5.9

DOI: https://doi.org/10.5614/j.eng.technol.sci.2025.57.5.9

Experimental Investigation of Ammonia/Oxygen/Argon Combustion: The Role of Equivalence Ratio and Nozzle Shape in a Constant Volume Combustion Chamber with Sub-chamber

DOI : 10.5614/j.eng.technol.sci.2024.56.6.3

Mitsuhisa Ichiyanagi ⁽¹⁾, Emir Yilmaz ⁽²⁾, Takuma Ohashi ⁽³⁾, Masato Sanno ⁽⁴⁾, Guansen Lin ⁽⁵⁾, Sebastian Gunawan ⁽⁶⁾, Henry Widjaja ⁽⁷⁾, Leon Jonathan ⁽⁸⁾, Gabriel Jeremy Gotama ⁽⁹⁾, Willyanto Anggono ⁽¹⁰⁾, Takashi Suzuki ⁽¹¹⁾

(1) Department of Engineering and Applied Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan ,

(2) Department of Engineering and Applied Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan ,

(3) Graduate School of Science and Technology, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan ,

(4) Graduate School of Science and Technology, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo 102-8554, , Japan ,

(5) Graduate School of Science and Technology, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan ,

(6) Mechanical Engineering Department, Petra Christian University, Jalan Siwalankerto 121-131, Surabaya 60236, Indonesia ,

(7) Mechanical Engineering Department, Petra Christian University, Jalan Siwalankerto 121-131, Surabaya 60236, Indonesia ,

(8) Mechanical Engineering Department, Petra Christian University, Jalan Siwalankerto 121-131, Surabaya 60236, , Indonesia ,

(9) Centre for Sustainable Energy Studies, Petra Christian University, Jalan Siwalankerto 121-131, Surabaya 60236, Indonesia ,

(10) Centre for Sustainable Energy Studies, Petra Christian University, Jalan Siwalankerto 121-131, Surabaya 60236, Indonesia ,

(11) Department of Engineering and Applied Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan

704-715

Abstract : 1276

PDF : 275

DOI : 10.5614/j.eng.technol.sci.2024.56.6.3

DOI: https://doi.org/10.5614/j.eng.technol.sci.2024.56.6.3

Green Energy Technologies: A Key Driver in Carbon Emission Reduction

DOI : 10.5614/j.eng.technol.sci.2024.56.2.1

I Gede Wenten ⁽¹⁾, Khoiruddin Khoiruddin ⁽²⁾, Utjok Welo Risma Siagian ⁽³⁾

(1) Department of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Bandung, Jalan Ganesa 10, Bandung 40132, Indonesia, Indonesia ,

(2) Department of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Bandung, Jalan Ganesa 10, Bandung 40132, Indonesia, Indonesia ,

(3) Department of Petroleum Engineering, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Jalan Ganesha 10, Bandung, 40132, Indonesia , Indonesia

143-192

Abstract : 12585

PDF : 2862

DOI : 10.5614/j.eng.technol.sci.2024.56.2.1

DOI: https://doi.org/10.5614/j.eng.technol.sci.2024.56.2.1

Design Optimization of Automobile Wheel Rim by Using Taguchi-SAW Method

DOI : 10.5614/j.eng.technol.sci.2026.58.4.9

Ngoc Thai Huynh ⁽¹⁾, Anh Son Tran ⁽²⁾, Anh Cuong Ho ⁽³⁾, Van Nang Do ⁽⁴⁾, Minh Hung Vu ⁽⁵⁾, Quoc Manh Nguyen ⁽⁶⁾

(1) Faculty of Mechanical Engineering and Technology, Ho Chi Minh City University of Industry and Trade, 140 Le Trong Tan, Tay Thanh Ward, Ho Chi Minh City 700000, , Viet Nam ,

(2) Faculty of Automotive Engineering and Technology, Industrial University of Ho Chi Minh City, 12 Nguyen Van Bao street, Hanh Thong Ward, Ho Chi Minh City, 700000, , Viet Nam ,

(3) Faculty of Automotive Engineering and Technology, Industrial University of Ho Chi Minh City, 12 Nguyen Van Bao street, Hanh Thong Ward, Ho Chi Minh City, 700000, , Viet Nam ,

(4) Faculty of Automotive Engineering and Technology, Industrial University of Ho Chi Minh City, 12 Nguyen Van Bao street, Hanh Thong Ward, Ho Chi Minh City, 700000, , Viet Nam ,

(5) Faculty of Fundamental Sciences, PetroVietnam University, Ho Chi Minh City 700000, , Viet Nam ,

(6) Faculty of Mechanical Engineering, Hung Yen University of Technology and Education, Hung Yen 160000, , Viet Nam

584-601

Abstract : 258

PDF : 126

DOI : 10.5614/j.eng.technol.sci.2026.58.4.9

DOI: https://doi.org/10.5614/j.eng.technol.sci.2026.58.4.9

Experimental Research on Sustained Concrete with the Partially Substitutions of GGBS, Fly ash and Silica Fume as a Cementitious Material

DOI : 10.5614/j.eng.technol.sci.2025.57.5.10

Rajasekhar Cheruvu ⁽¹⁾, B Kameswara Rao ⁽²⁾, M Achyutha Kumar Reddy ⁽³⁾

(1) Department of Civil Engineering, Koneru Lakshmaiah Education Foundation, Green Fields, Vaddeswaram, Guntur, Andhra Pradesh 522502, India ,

(2) Department of Civil Engineering, Koneru Lakshmaiah Education Foundation, Green Fields, Vaddeswaram, Guntur, Andhra Pradesh 522502, India ,

(3) Department of Civil Engineering, Koneru Lakshmaiah Education Foundation, Green Fields, Vaddeswaram, Guntur, Andhra Pradesh 522502, India

713-734

Abstract : 940

PDF : 499

DOI : 10.5614/j.eng.technol.sci.2025.57.5.10

DOI: https://doi.org/10.5614/j.eng.technol.sci.2025.57.5.10

Life Cycle Assessment of Decaffeinated Coffee Beans Production

DOI : 10.5614/j.eng.technol.sci.2025.57.3.3

Dian Shofinita ⁽¹⁾, Dianika Lestari ⁽²⁾, Fiorine Fiorine ⁽³⁾, Andreana Rochili ⁽⁴⁾, Anggit Raksajati ⁽⁵⁾, Amarthya Achmadi ⁽⁶⁾

(1) Department of Chemical Engineering, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, Indonesia, Indonesia ,

(2) Department of Chemical Engineering, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, Indonesia, Indonesia ,

(3) Department of Food Engineering, Institut Teknologi Bandung Jalan Let. Jen. Purn. Dr. (HC). Mashudi No. 1/ Jalan Raya Jatinangor KM 20,75, Sumedang 45363, Indonesia, Indonesia ,

(4) Department of Food Engineering, Institut Teknologi Bandung Jalan Let. Jen. Purn. Dr. (HC). Mashudi No. 1/ Jalan Raya Jatinangor KM 20,75, Sumedang 45363, Indonesia, Indonesia ,

(5) Department of Food Engineering, Institut Teknologi Bandung Jalan Let. Jen. Purn. Dr. (HC). Mashudi No. 1/ Jalan Raya Jatinangor KM 20,75, Sumedang 45363, Indonesia, Indonesia ,

(6) Department of Chemical Engineering, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, Indonesia, Indonesia

315-326

Abstract : 1539

PDF : 1048

DOI : 10.5614/j.eng.technol.sci.2025.57.3.3

DOI: https://doi.org/10.5614/j.eng.technol.sci.2025.57.3.3