Physical and combustion characteristics of rice bran oil biodiesel in an oil burner

The concept of biodiesel as an alternative fuel is not an overnight thought, but high prices, pungent gas emissions and non-ecological behaviour of fossil fuels has constrained the researchers to take the step. Biodiesels which are renewable in nature and having environmental friendly attitude have...

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Main Author:	Safiullahi, Safiullahi
Format:	Thesis
Language:	English
Published:	2017
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://eprints.utm.my/id/eprint/78975/1/SafiullahMFKM2017.pdf
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spelling	my-utm-ep.789752018-09-19T05:21:26Z Physical and combustion characteristics of rice bran oil biodiesel in an oil burner 2017 Safiullahi, Safiullahi TJ Mechanical engineering and machinery The concept of biodiesel as an alternative fuel is not an overnight thought, but high prices, pungent gas emissions and non-ecological behaviour of fossil fuels has constrained the researchers to take the step. Biodiesels which are renewable in nature and having environmental friendly attitude have shown the potential to be the perfect replacement for the diesel fuels. Similarly, this study demonstrates the characteristics of Rice Bran Oil (RBO) which can be used as a latent substitute for diesel products. RBO is the vegetable oil, which is extracted from the rice bran (by-product of rice grain). As the rice is the steeple diet for more than half of the population of the world, the quantity of RBO that can be extracted is enormous. In this study, RBO is converted to the biodiesel first and then it is blended with diesel to produce B5, B15 and B25 to study the physio-chemical properties and exhaust emissions. Conversion of RBO into biodiesel is compared by altering the amount of different catalysts i.e. KOH and NaOH. At catalyst amount of 1% (w/w to crude RBO), KOH converts 5.55% more RBOBD than NaOH thus keeping other parameters i.e. methanol amount, reaction time and reaction temperature constant. Owing to highly packed molecules of RBOBD, the properties such as density, specific gravity, viscosity and surface tension are higher in RBOBD blends than diesel. In contrast, calorific value is lower. In combustion test, the highest wall temperature is achieved at stoichiometric fuel mixture, while among the fuels, the wall temperature gets lower as biodiesel proportion increases in diesel. Moreover, in B25, emissions such as CO and SO2 are 68% and 50% lower than diesel respectively. However, due to the additional oxygen present in the biodiesel structure, NOx emission of B25 is 15.668% higher than CDF. 2017 Thesis http://eprints.utm.my/id/eprint/78975/ http://eprints.utm.my/id/eprint/78975/1/SafiullahMFKM2017.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:106932 masters Universiti Teknologi Malaysia, Faculty of Mechanical Engineering Faculty of Mechanical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Safiullahi, Safiullahi Physical and combustion characteristics of rice bran oil biodiesel in an oil burner
description	The concept of biodiesel as an alternative fuel is not an overnight thought, but high prices, pungent gas emissions and non-ecological behaviour of fossil fuels has constrained the researchers to take the step. Biodiesels which are renewable in nature and having environmental friendly attitude have shown the potential to be the perfect replacement for the diesel fuels. Similarly, this study demonstrates the characteristics of Rice Bran Oil (RBO) which can be used as a latent substitute for diesel products. RBO is the vegetable oil, which is extracted from the rice bran (by-product of rice grain). As the rice is the steeple diet for more than half of the population of the world, the quantity of RBO that can be extracted is enormous. In this study, RBO is converted to the biodiesel first and then it is blended with diesel to produce B5, B15 and B25 to study the physio-chemical properties and exhaust emissions. Conversion of RBO into biodiesel is compared by altering the amount of different catalysts i.e. KOH and NaOH. At catalyst amount of 1% (w/w to crude RBO), KOH converts 5.55% more RBOBD than NaOH thus keeping other parameters i.e. methanol amount, reaction time and reaction temperature constant. Owing to highly packed molecules of RBOBD, the properties such as density, specific gravity, viscosity and surface tension are higher in RBOBD blends than diesel. In contrast, calorific value is lower. In combustion test, the highest wall temperature is achieved at stoichiometric fuel mixture, while among the fuels, the wall temperature gets lower as biodiesel proportion increases in diesel. Moreover, in B25, emissions such as CO and SO2 are 68% and 50% lower than diesel respectively. However, due to the additional oxygen present in the biodiesel structure, NOx emission of B25 is 15.668% higher than CDF.
format	Thesis
qualification_level	Master's degree
author	Safiullahi, Safiullahi
author_facet	Safiullahi, Safiullahi
author_sort	Safiullahi, Safiullahi
title	Physical and combustion characteristics of rice bran oil biodiesel in an oil burner
title_short	Physical and combustion characteristics of rice bran oil biodiesel in an oil burner
title_full	Physical and combustion characteristics of rice bran oil biodiesel in an oil burner
title_fullStr	Physical and combustion characteristics of rice bran oil biodiesel in an oil burner
title_full_unstemmed	Physical and combustion characteristics of rice bran oil biodiesel in an oil burner
title_sort	physical and combustion characteristics of rice bran oil biodiesel in an oil burner
granting_institution	Universiti Teknologi Malaysia, Faculty of Mechanical Engineering
granting_department	Faculty of Mechanical Engineering
publishDate	2017
url	http://eprints.utm.my/id/eprint/78975/1/SafiullahMFKM2017.pdf
_version_	1747818117356060672

Physical and combustion characteristics of rice bran oil biodiesel in an oil burner

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