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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 : 503

PDF : 140

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

Development of Active-Smart Packaging: Effect of Chitosan Nanofiber, Zinc Oxide Nanoparticles, and Anthocyanin on Gelatine-Based Halochromic Film for Meat Preservation

DOI : 10.5614/j.eng.technol.sci.2025.57.3.7

Nita Kusumawati ⁽¹⁾, Asrul Bahar ⁽²⁾, Maria Monica Sianita Basukiwardojo ⁽³⁾, Samik Samik ⁽⁴⁾, Nunik Tri Rahayu ⁽⁵⁾, Indri Wasa Estiningtyas ⁽⁶⁾, Muhammad Ridho Hafid Kurniawan ⁽⁷⁾

(1) Department of Family Welfare Education, Universitas Negeri Surabaya, Jalan Ketintang, Ketintang, Kec. Gayungan, Surabaya, 60231, Indonesia ,

(2) Department of Chemistry, Universitas Negeri Surabaya, Jalan Ketintang, Ketintang, Kec. Gayungan, Surabaya 60231, Indonesia ,

(3) Department of Family Welfare Education, Universitas Negeri Surabaya, Jalan Ketintang, Ketintang, Kec. Gayungan, Surabaya, 60231, Indonesia ,

(4) Department of Family Welfare Education, Universitas Negeri Surabaya, Jalan Ketintang, Ketintang, Kec. Gayungan, Surabaya, 60231, Indonesia ,

(5) Department of Family Welfare Education, Universitas Negeri Surabaya, Jalan Ketintang, Ketintang, Kec. Gayungan, Surabaya, 60231, Indonesia ,

(6) Department of Family Welfare Education, Universitas Negeri Surabaya, Jalan Ketintang, Ketintang, Kec. Gayungan, Surabaya, 60231, Indonesia ,

(7) Department of Family Welfare Education, Universitas Negeri Surabaya, Jalan Ketintang, Ketintang, Kec. Gayungan, Surabaya, 60231, Indonesia

373-388

Abstract : 590

PDF : 205

DOI : 10.5614/j.eng.technol.sci.2025.57.3.7

DOI: https://doi.org/10.5614/j.eng.technol.sci.2025.57.3.7

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 : 995

PDF : 86

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