Combustion of pelletized empty fruit bunch and oil palm shell in a swirling fluidized bed combustor

Climate change and its associated impact has been one of the biggest challenge to mankind today. Alternative fuels are therefore sought to reduce the amount of greenhouse gases emission which was believed to be the main reason for global warming. In countries like Malaysia, biomass is available in a...

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Main Author:	Othaman, Muhamad Fazli
Format:	Thesis
Language:	English English English
Published:	2018
Subjects:	TP315-360 Fuel
Online Access:	http://eprints.uthm.edu.my/217/1/24p%20MUHAMAD%20FAZLI%20BIN%20OTHAMAN.pdf http://eprints.uthm.edu.my/217/2/MUHAMAD%20FAZLI%20BIN%20OTHAMAN%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/217/3/MUHAMAD%20FAZLI%20BIN%20OTHAMAN%20WATERMARK.pdf
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spelling	my-uthm-ep.2172021-07-13T01:18:06Z Combustion of pelletized empty fruit bunch and oil palm shell in a swirling fluidized bed combustor 2018-07 Othaman, Muhamad Fazli TP315-360 Fuel Climate change and its associated impact has been one of the biggest challenge to mankind today. Alternative fuels are therefore sought to reduce the amount of greenhouse gases emission which was believed to be the main reason for global warming. In countries like Malaysia, biomass is available in abundance thus making it the preferred alternative fuel in comparison to other sources. One of the popular means of biomass combustion is through fluidized bed system. At present, conventional fluidized bed only provides fluidization air from the distributor at the bottom. This technique has its drawbacks such as the non-uniform temperature distribution inside the bed due to momentum transfer in axial direction only. This drawback however, can be addressed by introducing the swirling fluidized bed which provides inclined injection of air inside the fluidized bed. In this study, an innovative combustion technique for biomass is proposed, designated as the Swirling Fluidized Bed Combustor (SFBC). The SFBC provides excellent solid-air mixing which is ideal for combustion, by using annular-blade distributor. Two types of biomass from oil palm was studied, namely the pelletized empty fruit bunch (PEFB) and oil palm shell (OPS). The ultimate and proximate analysis were investigated for both biomass before combustion experiments were carried out in the SFBC. The effect of excess air was studied at four different volume percentages of 16.55%, 20.07%, 27.91% and 35.82% at constant biomass feed rate of 54.26 kglh for PEFB and 48.91 kg/h for OPS. Emissions of CO, C02 and NOx measured during combustion shows that the SFBC system is capable in reducing the CO and NOx for all excess air provided. The emission however C02 increased, indicating better conversion taking place in the SFBC. An average combustion efficiency of98.4% was obtained for PEFB and 99.5% for OPS, showing the potential to utilize SFBC in commercial scale in Malaysia. 2018-07 Thesis http://eprints.uthm.edu.my/217/ http://eprints.uthm.edu.my/217/1/24p%20MUHAMAD%20FAZLI%20BIN%20OTHAMAN.pdf text en public http://eprints.uthm.edu.my/217/2/MUHAMAD%20FAZLI%20BIN%20OTHAMAN%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/217/3/MUHAMAD%20FAZLI%20BIN%20OTHAMAN%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Onn Malaysia Faculty of Mechanical and Manufacturing Engineering
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	TP315-360 Fuel
spellingShingle	TP315-360 Fuel Othaman, Muhamad Fazli Combustion of pelletized empty fruit bunch and oil palm shell in a swirling fluidized bed combustor
description	Climate change and its associated impact has been one of the biggest challenge to mankind today. Alternative fuels are therefore sought to reduce the amount of greenhouse gases emission which was believed to be the main reason for global warming. In countries like Malaysia, biomass is available in abundance thus making it the preferred alternative fuel in comparison to other sources. One of the popular means of biomass combustion is through fluidized bed system. At present, conventional fluidized bed only provides fluidization air from the distributor at the bottom. This technique has its drawbacks such as the non-uniform temperature distribution inside the bed due to momentum transfer in axial direction only. This drawback however, can be addressed by introducing the swirling fluidized bed which provides inclined injection of air inside the fluidized bed. In this study, an innovative combustion technique for biomass is proposed, designated as the Swirling Fluidized Bed Combustor (SFBC). The SFBC provides excellent solid-air mixing which is ideal for combustion, by using annular-blade distributor. Two types of biomass from oil palm was studied, namely the pelletized empty fruit bunch (PEFB) and oil palm shell (OPS). The ultimate and proximate analysis were investigated for both biomass before combustion experiments were carried out in the SFBC. The effect of excess air was studied at four different volume percentages of 16.55%, 20.07%, 27.91% and 35.82% at constant biomass feed rate of 54.26 kglh for PEFB and 48.91 kg/h for OPS. Emissions of CO, C02 and NOx measured during combustion shows that the SFBC system is capable in reducing the CO and NOx for all excess air provided. The emission however C02 increased, indicating better conversion taking place in the SFBC. An average combustion efficiency of98.4% was obtained for PEFB and 99.5% for OPS, showing the potential to utilize SFBC in commercial scale in Malaysia.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Othaman, Muhamad Fazli
author_facet	Othaman, Muhamad Fazli
author_sort	Othaman, Muhamad Fazli
title	Combustion of pelletized empty fruit bunch and oil palm shell in a swirling fluidized bed combustor
title_short	Combustion of pelletized empty fruit bunch and oil palm shell in a swirling fluidized bed combustor
title_full	Combustion of pelletized empty fruit bunch and oil palm shell in a swirling fluidized bed combustor
title_fullStr	Combustion of pelletized empty fruit bunch and oil palm shell in a swirling fluidized bed combustor
title_full_unstemmed	Combustion of pelletized empty fruit bunch and oil palm shell in a swirling fluidized bed combustor
title_sort	combustion of pelletized empty fruit bunch and oil palm shell in a swirling fluidized bed combustor
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Faculty of Mechanical and Manufacturing Engineering
publishDate	2018
url	http://eprints.uthm.edu.my/217/1/24p%20MUHAMAD%20FAZLI%20BIN%20OTHAMAN.pdf http://eprints.uthm.edu.my/217/2/MUHAMAD%20FAZLI%20BIN%20OTHAMAN%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/217/3/MUHAMAD%20FAZLI%20BIN%20OTHAMAN%20WATERMARK.pdf
_version_	1747830556499902464

Combustion of pelletized empty fruit bunch and oil palm shell in a swirling fluidized bed combustor

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