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All Journal Jurnal AME (Aplikasi Mekanika dan Energi): Jurnal Ilmiah Teknik Mesin Indonesian Journal of Energy
Suntoro, Dedi
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Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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PERHITUNGAN KOEFESIEN PINDAH PANAS PADA HEAT EXCHANGER UNTUK PENGERINGAN Suntoro, Dedi; Kindi, Hablinur Al-
AME (Aplikasi Mekanika dan Energi): Jurnal Ilmiah Teknik Mesin Vol. 2 No. 1 (2016)
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (212.542 KB) | DOI: 10.32832/ame.v2i1.349

Abstract

Hot air from residual biomass combustion in biomass power plant can be used for drying process. In this study, hot air from residual biomass combustion was utilised as energy source for tray dryer. Model of tray dryer developed by Boiler Laboratory, Lemigas was used as drying apparatus. The objective of this study was to analyze the distribution of hot air inside tray dryer using Computational Fluid Dynamic (CFD). Heat transfer occurs in heat exchanger. Hot air coming from heat exchanger to dryer by be blown with blower. One of the most important variable is heat transfer coefficient in heat exchanger (U).This research aims to find heat transfer coefficient in heat exchanger . The result , heat transfer coefficient depend on five thermal resistance ; thermal resistance by air convection 0,011 m2.K/W, thermal resistance by factor of air pollutant 0,00035 m2.K/W, thermal resistance by flue gas pollutant 0,00176 m2.K/W, thermal resistance by conductivity material, thermal resistance by flue gas 0,03 m2.K/W. Heat transfer coefficient is 23.55 W/m2 .K .
Clean Cooking and the Rice Cooker Programme: An Evaluation and Policy Perspective Suntoro, Dedi; Nugroho, Wahid Pinto; Darmaji; Hadiyanto, Fuad; Priyono; Farandy, Alan Ray; Zainuddin, Hazan Azhari; Hesty, Nurry Widya; Sinaga, Paber; Norhadi, Lutfi; Sriyanto, Nanto
Indonesian Journal of Energy Vol. 8 No. 2 (2025): Indonesian Journal of Energy
Publisher : Purnomo Yusgiantoro Center

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Abstract

Clean cooking is a critical agenda for enhancing access to clean energy in developing nations. In 2023–2024, the Indonesian government implemented a programme to distribute free rice cookers to underprivileged communities, yet this initiative has not previously been evaluated. This study addresses that gap by examining the impact of the rice cooker distribution on household energy consumption and LPG dependency. While several studies have assessed clean cooking programmes—such as biogas, induction, solar-powered stoves, and electric pressure cookers—this research is among the first to evaluate a rice cooker programme in a large-scale field setting, thereby offering novel insights and contributing to the literature on the clean energy transition. A Slovin sampling strategy selected 600 respondents from among 342,621 households across 36 provinces with a margin of error of approximately 4.1%. Primary data were analysed using descriptive statistics, including frequency distributions and cross-tabulations, alongside inferential methods such as ordered logistic regression to investigate the determinants of satisfaction of this program and also t-tests to compare electricity consumption and LPG usage before and after receiving the rice cooker. In addition, secondary data comprising 5,814,476 records on monthly electricity consumption from January 2023 to May 2024 were utilised. Our evaluation reveals that the free rice cooker programme has led to a significant increase in per capita electricity consumption and a corresponding reduction in LPG consumption and subsidies. Although household electricity bills have risen, most respondents report that the efficiency and convenience of the rice cooker offset these additional costs. These findings support the further expansion and continual evaluation of such clean cooking initiatives, enhancing energy resilience in Indonesia and other developing countries.
Co-Authors Darmaji Farandy, Alan Ray Hablinur Alkindi Hadiyanto, Fuad Hesty, Nurry Widya Nanto Sriyanto, Nanto Norhadi, Lutfi Nugroho, Wahid Pinto Priyono Sinaga, Paber Zainuddin, Hazan Azhari