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COMPARISON OF TEMPERATURE, RADIATION RATE, HEAT LOSS, FURNACE AND THERMAL EFFICIENCIES OF DIFFERENT PLATES IN THE FBC COMBUSTION CHAMBER

Erdiwansyah Erdiwansyaha,e,f, Mahidin Mahidinb,*, Husni Husinb, Nasaruddin Nasaruddinc, Asri Ganib, Muhammad Faisal, Muhtadin Muhtadind, Muhammad Zakib, Rizalman Mamate

a Doctoral Program, School of Engineering, Post Graduate Program, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
b Department of Chemical Engineering, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
c Department of Electrical and Computer Engineering, Syiah Kuala University, Banda Aceh 23111, Indonesia
d Department of Mechanical Engineering, Universitas Abulyatama Aceh, Aceh Besar 23372, Indonesia
e Center for Automotive Engineering, Universiti Malaysia Pahang, 26600 Pekan, Malaysia
f Faculty of Engineering, Universitas Serambi Mekkah, Banda Aceh 23245, Indonesia
* Corresponding author. Email: mahidin@unsyiah.ac.id

Frontiers in Heat and Mass Transfer 2023, 20, 1-9. https://doi.org/10.5098/hmt.20.29

Abstract

The conversion of solid biomass waste into energy continues to be developed at this time to reduce dependence on fossil energy. Energy conversion can be carried out using several technologies commercialized by several industries, including the fluidized-bed combustor (FBC). This FBC technology has also been developed in several ways, such as the modification or unique modelling. In particular, the perforated plate modelling applied in this study is to provide excess air supply so that complete combustion can be achieved. In addition, modifying the perforated plate increases efficiency and radiation and reduces heat loss in the FBC combustion chamber. This research was conducted with combustion experiments using palm kernel shell (PKS), oil palm midrib (OPM), and empty fruit bunches (EFB) against different plates. Experimental results show that the maximum temperature achieved on the modified four guide plates is 975oC for PKS fuel, 850oC OPM, and 883oC EFB with 20% -70% excess air. The results of the highest furnace efficiency on the four guide plate modifications were 91.44% PKS, 73.48% OPM, and 77.63% EFB. Meanwhile, the highest efficiency recorded from modifying the four guide plates for each fuel was 84% PKS, 73% OPM and 74% EFB. The highest radiation rates were recorded at 7745.21 W/sec PKS, 5971.17 W/sec OPM, and 6356.12 W/sec EFB. The perforated plate modification applied in the FBC combustion chamber can reduce heat loss significantly compared to when implementing standard plates.

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Erdiwansyah, E., Mahidin, M., Husin, H., Nasaruddin, N., Gani, A. et al. (2023). COMPARISON OF TEMPERATURE, RADIATION RATE, HEAT LOSS, FURNACE AND THERMAL EFFICIENCIES OF DIFFERENT PLATES IN THE FBC COMBUSTION CHAMBER. Frontiers in Heat and Mass Transfer, 20, 1–9.



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