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Optimizing Evaporator Design in ORC Systems for Waste-to-Energy Conversion Using FAST Diagram and Value Engineering

DOI : 10.5614/j.eng.technol.sci.2026.58.3.4

R. Susalit Setya Wibowo ⁽¹⁾, Satmintareja Satmintareja ⁽²⁾, Asep Duduh Abdurahman ⁽³⁾, Suyatmin Suyatmin ⁽⁴⁾, Darmawan Darmawan ⁽⁵⁾, Ari Gunawan ⁽⁶⁾, Kusumawati Dewi Budiarti ⁽⁷⁾, Nasrul Baddu ⁽⁸⁾, Adhi Pramono ⁽⁹⁾, Faisal Faisal ⁽¹⁰⁾, Cahyono Nugroho ⁽¹¹⁾, Suharto Ngudiwaluyo ⁽¹²⁾, Zico Pratama Putra ⁽¹³⁾

(1) Technology Evaluation, Value Engineering and Value Analysis Research Group, Research Organization of Energy and Manufacturing, National Research and Innovation Agency (BRIN), KST BJ Habibie, Kawasan PUSPIPTEK Serpong, South Tangerang 15314, Banten, , Indonesia ,

(2) Technology Evaluation, Value Engineering and Value Analysis Research Group, Research Organization of Energy and Manufacturing, National Research and Innovation Agency (BRIN), KST BJ Habibie, Kawasan PUSPIPTEK Serpong, South Tangerang 15314, Banten, , Indonesia ,

(3) Technology Evaluation, Value Engineering and Value Analysis Research Group, Research Organization of Energy and Manufacturing, National Research and Innovation Agency (BRIN), KST BJ Habibie, Kawasan PUSPIPTEK Serpong, South Tangerang 15314, Banten, , Indonesia ,

(4) Technology Evaluation, Value Engineering and Value Analysis Research Group, Research Organization of Energy and Manufacturing, National Research and Innovation Agency (BRIN), KST BJ Habibie, Kawasan PUSPIPTEK Serpong, South Tangerang 15314, Banten, , Indonesia ,

(5) Technology Evaluation, Value Engineering and Value Analysis Research Group, Research Organization of Energy and Manufacturing, National Research and Innovation Agency (BRIN), KST BJ Habibie, Kawasan PUSPIPTEK Serpong, South Tangerang 15314, Banten, Indonesia ,

(6) Technology Evaluation, Value Engineering and Value Analysis Research Group, Research Organization of Energy and Manufacturing, National Research and Innovation Agency (BRIN), KST BJ Habibie, Kawasan PUSPIPTEK Serpong, South Tangerang 15314, Banten, , Indonesia ,

(7) Technology Evaluation, Value Engineering and Value Analysis Research Group, Research Organization of Energy and Manufacturing, National Research and Innovation Agency (BRIN), KST BJ Habibie, Kawasan PUSPIPTEK Serpong, South Tangerang 15314, Banten, Indonesia ,

(8) Technology Evaluation, Value Engineering and Value Analysis Research Group, Research Organization of Energy and Manufacturing, National Research and Innovation Agency (BRIN), KST BJ Habibie, Kawasan PUSPIPTEK Serpong, South Tangerang 15314, Banten, Indonesia ,

(9) Technology Evaluation, Value Engineering and Value Analysis Research Group, Research Organization of Energy and Manufacturing, National Research and Innovation Agency (BRIN), KST BJ Habibie, Kawasan PUSPIPTEK Serpong, South Tangerang 15314, Banten, Indonesia ,

(10) Technology Evaluation, Value Engineering and Value Analysis Research Group, Research Organization of Energy and Manufacturing, National Research and Innovation Agency (BRIN), KST BJ Habibie, Kawasan PUSPIPTEK Serpong, South Tangerang 15314, Banten, Indonesia ,

(11) National Research and Innovation Agency (BRIN), Indonesia ,

(12) Technology Evaluation, Value Engineering and Value Analysis Research Group, Research Organization of Energy and Manufacturing, National Research and Innovation Agency (BRIN), KST BJ Habibie, Kawasan PUSPIPTEK Serpong, South Tangerang 15314, Banten, , Indonesia ,

(13) Research Center for Nuclear Materials and Radioactive Waste Technology (PRTBNLR), National Research and Innovation Agency (BRIN), KST BJ Habibie, Kawasan PUSPIPTEK Serpong, South Tangerang 15314, Banten, Indonesia

348-365

Abstract : 1274

PDF : 443

DOI : 10.5614/j.eng.technol.sci.2026.58.3.4

DOI: https://doi.org/10.5614/j.eng.technol.sci.2026.58.3.4

Investigation of the Effect of Silica and Phosphorus Content on the Performance of Active Matrix as Component of Cracking Catalyst

DOI : 10.5614/j.eng.technol.sci.2024.56.2.3

Melia Laniwati Gunawan ⁽¹⁾, Carolus Borromeus Rasrendra ⁽²⁾, Candra Lutfi Widikrama ⁽³⁾, Rizky Gilang Kurniawan ⁽⁴⁾, Lita Marina Nisa ⁽⁵⁾, Farhansyah Yusuf Putra Hudaya ⁽⁶⁾, I G. B. N. Makertihartha ⁽⁷⁾, Subagjo Subagjo ⁽⁸⁾

(1) Dept. of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, Indonesia, Indonesia ,

(2) Dept. of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, Indonesia, Indonesia ,

(3) Dept. of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, Indonesia, Indonesia ,

(4) Dept. of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, Indonesia, Indonesia ,

(5) Dept. of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, Indonesia, Indonesia ,

(6) Dept. of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, Indonesia, Indonesia ,

(7) Dept. of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, Indonesia, Indonesia ,

(8) Dept. of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, Indonesia, Indonesia

205-218

Abstract : 928

PDF : 351

DOI : 10.5614/j.eng.technol.sci.2024.56.2.3

DOI: https://doi.org/10.5614/j.eng.technol.sci.2024.56.2.3

One-dimensional Photonic Crystal with Defects to Detect Gelatine Containing Water

DOI : 10.5614/j.eng.technol.sci.2026.58.5.4

Ary Syahriar ⁽¹⁾, Nafis Riffat Syahriar ⁽²⁾, Muhamad Giri Suada ⁽³⁾, Kun Mardiwati Rahayu ⁽⁴⁾, Octarina Nur samijayani ⁽⁵⁾, Ahmad Husin Lubis ⁽⁶⁾

(1) Department of Electrical Engineering, Faculty of Science and Engineering, University al Azhar Indonesia, Kompleks Masjid Agung al Azhar, Jalan Sisingamangaraja Blok M. Jakarta 12110, Indonesia ,

(2) Material Engineering Department, Faculty of Mechanical and Aeronautics Engineering, Bandung Institute of Technology, Jalan Ganesa No. 10, Lebak Siliwangi, Kecamatan Coblong, Kota Bandung, Jawa Barat 40132, Indonesia ,

(3) Aeronautics Department, Faculty of Mechanical and Aeronautics Engineering, Bandung Institute of Technology, Jalan Ganesa No. 10, Lebak Siliwangi, Kecamatan Coblong, Kota Bandung, Jawa Barat 40132, Indonesia ,

(4) Department of Biology, Faculty of Science and Engineering, University al Azhar Indonesia, Kompleks Masjid Agung al Azhar, Jalan Sisingamangaraja Blok M. Jakarta 12110, Indonesia ,

(5) Department of Electrical Engineering, Faculty of Science and Engineering, University al Azhar Indonesia, Kompleks Masjid Agung al Azhar, Jalan Sisingamangaraja Blok M. Jakarta 12110, Indonesia ,

(6) Department of Electrical Engineering, Faculty of Science and Engineering, University al Azhar Indonesia, Kompleks Masjid Agung al Azhar, Jalan Sisingamangaraja Blok M. Jakarta 12110, Indonesia

652-660

Abstract : 377

PDF : 116

DOI : 10.5614/j.eng.technol.sci.2026.58.5.4

DOI: https://doi.org/10.5614/j.eng.technol.sci.2026.58.5.4

Hybrid Ultrasound and Advanced Oxidation Process Regeneration of Spent FCC Catalysts: Optimization and Their Catalytic Performance

DOI : 10.5614/j.eng.technol.sci.2026.58.2.6

Didi Dwi Anggoro ⁽¹⁾, Luqman Buchori ⁽²⁾, Nino Rinaldi ⁽³⁾, Silviana Silviana ⁽⁴⁾, Brilliant Umara Le Monde ⁽⁵⁾, Muhammad Fadila Putra ⁽⁶⁾, Muzakkir Mohamad Zainol ⁽⁷⁾

(1) Departement of Chemical Engineering, Faculty of Engineering, Universitas Diponegoro, Jalan Prof. Soedarto, Semarang 50275, , Angola ,

(2) Departement of Chemical Engineering, Faculty of Engineering, Universitas Diponegoro, Jalan Prof. Soedarto, Semarang 50275, , Indonesia ,

(3) Research Center for Chemistry, National Research and Innovation Agency (BRIN), Building 452, K.S.T. BJ. Habibie PUSPIPTEK, Jalan Raya Serpong, South Tangerang 15341, Indonesia ,

(4) Departement of Chemical Engineering, Faculty of Engineering, Universitas Diponegoro, Jalan Prof. Soedarto, Semarang 50275, Indonesia ,

(5) Departement of Chemical Engineering, Faculty of Engineering, Universitas Diponegoro, Jalan Prof. Soedarto, Semarang 50275, Indonesia ,

(6) Departement of Chemical Engineering, Faculty of Engineering, Universitas Diponegoro, Jalan Prof. Soedarto, Semarang 50275, Indonesia ,

(7) School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, Jalan Ilmu 1/1, 40450, Shah Alam, Selangor, Malaysia

227-242

Abstract : 832

PDF : 337

DOI : 10.5614/j.eng.technol.sci.2026.58.2.6

DOI: https://doi.org/10.5614/j.eng.technol.sci.2026.58.2.6

Decision Tree Machine Learning Approach for the Performance Prediction of Asphalt Mixes Modified with Waste Tyre Metal Fibre

DOI : 10.5614/j.eng.technol.sci.2025.57.3.2

Arsalaan Khan ⁽¹⁾, Muslich Hartadi Sutanto ⁽²⁾, Nasir Khan ⁽³⁾, Abdullah O. Baarimah ⁽⁴⁾, Mohamed Mubarak Abdul Wahab ⁽⁵⁾, Muhammad Imran Khan ⁽⁶⁾, Madhusudhan Bangalore Ramu ⁽⁷⁾, Rawid Khan ⁽⁸⁾

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

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

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

(4) Department of Civil and Construction Engineering, College of Engineering, A'Sharqiyah University, 400 Ibra, Oman ,

(5) Center of Urban Resource Sustainability, Institute of Smart and Sustainable Living, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia ,

(6) Department of Civil Engineering, College of Engineering, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11432, Saudi Arabia ,

(7) Department of Civil and Construction Engineering, College of Engineering, A'Sharqiyah University, 400 Ibra, Oman ,

(8) Department of Civil Engineering, University of Engineering & Technology Peshawar, 25120 Khyber Pakhtunkhwa, , Pakistan

303-314

Abstract : 2200

PDF : 915

DOI : 10.5614/j.eng.technol.sci.2025.57.3.2

DOI: https://doi.org/10.5614/j.eng.technol.sci.2025.57.3.2

Dynamics Responses of a Block Machine Foundation and a Pile Group Foundation Systems on Stratified Residual Soils in Indonesia by Lumped Mass and Finite Element Methods

DOI : 10.5614/j.eng.technol.sci.2024.56.2.6

Endra Susila ⁽¹⁾, Wim Ramartsa Ary ⁽²⁾, Andhika Sahadewa ⁽³⁾, Karina Meilawati Eka Putri ⁽⁴⁾, Ediansjah Zulkifli ⁽⁵⁾, Kresno Wikan Sadono ⁽⁶⁾

(1) Department of Civil Engineering, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, Indonesia, Indonesia ,

(2) Department of Civil Engineering, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, Indonesia, Indonesia ,

(3) Department of Civil Engineering, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, Indonesia, Indonesia ,

(4) Department of Civil Engineering, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, Indonesia, Indonesia ,

(5) Department of Civil Engineering, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, Indonesia, Indonesia ,

(6) Department of Civil Engineering, Faculty of Engineering, Universitas Diponegoro, Jalan Prof. Sudarto No.13, Semarang 50275, Indonesia , Indonesia

244-265

Abstract : 896

PDF : 629

DOI : 10.5614/j.eng.technol.sci.2024.56.2.6

DOI: https://doi.org/10.5614/j.eng.technol.sci.2024.56.2.6

Influences of Groove Geometries on Bend Radius and Springback in V-Bending

DOI : 10.5614/j.eng.technol.sci.2025.57.6.4

Quoc-Nguyen Banh ⁽¹⁾, Viet-Khai Le ⁽²⁾, Anh-Chuong Le ⁽³⁾, Anh-Son Tran ⁽⁴⁾, Minh-Tuan Ho ⁽⁵⁾

(1) Department of Manufacturing Engineering, Faculty of Mechanical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, Dien Hong Ward, Ho Chi Minh City, , Viet Nam ,

(2) Department of Manufacturing Engineering, Faculty of Mechanical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, Dien Hong Ward, Ho Chi Minh City, , Viet Nam ,

(3) Department of Manufacturing Engineering, Faculty of Mechanical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, Dien Hong Ward, Ho Chi Minh City, , Viet Nam ,

(4) Department of Manufacturing Engineering, Faculty of Mechanical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, Dien Hong Ward, Ho Chi Minh City, , Viet Nam ,

(5) Department of Manufacturing Engineering, Faculty of Mechanical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, Dien Hong Ward, Ho Chi Minh City, , Viet Nam

776-790

Abstract : 1018

PDF : 468

DOI : 10.5614/j.eng.technol.sci.2025.57.6.4

DOI: https://doi.org/10.5614/j.eng.technol.sci.2025.57.6.4

Facile and Environmentally Friendly Synthesis of Low-defect Few-Layers Graphene (FLG) Using Combined Shear Exfoliation Methods

DOI : 10.5614/j.eng.technol.sci.2025.57.5.4

Amun Amri ⁽¹⁾, Revika Wulandari ⁽²⁾, Dhina Fabryza ⁽³⁾, Sunarno Sunarno ⁽⁴⁾, Desi Heltina ⁽⁵⁾, Syaiful Bahri ⁽⁶⁾, Deki Sarma ⁽⁷⁾, Hussein A. Miran ⁽⁸⁾, M. Mahbubur Rahman ⁽⁹⁾, Mohammednoor Altarawneh ⁽¹⁰⁾, Zhong Tao Jiang ⁽¹¹⁾

(1) Department of Chemical Engineering, University of Riau, Pekanbaru, Riau, 28293, , Indonesia ,

(2) Department of Chemical Engineering, University of Riau, Pekanbaru, Riau, 28293, , Indonesia ,

(3) Department of Chemical Engineering, University of Riau, Pekanbaru, Riau, 28293, Indonesia , Indonesia ,

(4) Department of Chemical Engineering, University of Riau, Pekanbaru, Riau, 28293, Indonesia , Indonesia ,

(5) Department of Chemical Engineering, University of Riau, Pekanbaru, Riau, 28293, Indonesia , Indonesia ,

(6) Department of Chemical Engineering, University of Riau, Pekanbaru, Riau, 28293, Indonesia , Indonesia ,

(7) Department of Chemical Engineering, University of Riau, Pekanbaru, Riau, 28293, Indonesia , Indonesia ,

(8) Department of Physics, College of Education for Pure Science, Ibn Al-Haitham, University of Baghdad, Baghdad, 10071, , Iraq ,

(9) Department of Physics, Jahangirnagar University, Savar, Dhaka, 1342, , Bangladesh ,

(10) Department of Chemical and Petroleum Engineering, United Arab Emirates University, 15551, United , United Arab Emirates ,

(11) Surface Analysis and Materials Engineering Research Group, College of Science, Health, Engineering and Education, Murdoch University, Murdoch, WA 6150, Australia

613-626

Abstract : 951

PDF : 559

DOI : 10.5614/j.eng.technol.sci.2025.57.5.4

DOI: https://doi.org/10.5614/j.eng.technol.sci.2025.57.5.4

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 : 1589

PDF : 1298

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

Real-time Assessment of ECG Classification based on Time-series Data and Other Types of Features

DOI : 10.5614/j.eng.technol.sci.2025.57.4.8

Thanh-Luan Tran ⁽¹⁾, Bao-Toan Thai ⁽²⁾, Vy-Khang Tran ⁽³⁾, Xuan-Nhi Nguyen-Thi ⁽⁴⁾, Chi-Ngon Nguyen ⁽⁵⁾, Van-Khanh Nguyen ⁽⁶⁾

(1) Faculty of Mechanical Power Engineering, Vinh Long University of Technology Education, Nguyen Hue Street, Long Chau Ward, Vinh Long Province 85000, Viet Nam ,

(2) Faculty of Automation Engineering, College of Engineering, Can Tho University, 3/2 Street, Ninh Kieu Ward, Can Tho City 94000, Viet Nam ,

(3) Faculty of Automation Engineering, College of Engineering, Can Tho University, 3/2 Street, Ninh Kieu Ward, Can Tho City 94000, Viet Nam ,

(4) Vinh Long Vocational College, 1A National Highway , Phuoc Yen Hamlet, Phu Quoi Commune, Vinh Long Province 85000, , Viet Nam ,

(5) Faculty of Automation Engineering, College of Engineering, Can Tho University, 3/2 Street, Ninh Kieu Ward, Can Tho City 94000, Viet Nam ,

(6) Faculty of Automation Engineering, College of Engineering, Can Tho University, 3/2 Street, Ninh Kieu Ward, Can Tho City 94000, Viet Nam

530-544

Abstract : 1070

PDF : 587

DOI : 10.5614/j.eng.technol.sci.2025.57.4.8

DOI: https://doi.org/10.5614/j.eng.technol.sci.2025.57.4.8

Optimizing Evaporator Design in ORC Systems for Waste-to-Energy Conversion Using FAST Diagram and Value Engineering

Investigation of the Effect of Silica and Phosphorus Content on the Performance of Active Matrix as Component of Cracking Catalyst

One-dimensional Photonic Crystal with Defects to Detect Gelatine Containing Water

Hybrid Ultrasound and Advanced Oxidation Process Regeneration of Spent FCC Catalysts: Optimization and Their Catalytic Performance

Decision Tree Machine Learning Approach for the Performance Prediction of Asphalt Mixes Modified with Waste Tyre Metal Fibre

Dynamics Responses of a Block Machine Foundation and a Pile Group Foundation Systems on Stratified Residual Soils in Indonesia by Lumped Mass and Finite Element Methods

Influences of Groove Geometries on Bend Radius and Springback in V-Bending

Facile and Environmentally Friendly Synthesis of Low-defect Few-Layers Graphene (FLG) Using Combined Shear Exfoliation Methods

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

Real-time Assessment of ECG Classification based on Time-series Data and Other Types of Features

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