Design and performance study of an alpha V-type stirling engine converted from diesel engine

The design of an alpha V-type Stirling engine converted from Yamaha fourstroke diesel engine was realized with few major modifications on the engine housing, heater head, swirl burner, regenerator, oil lubrication system, auxiliary cooler and flywheel. The methodology of developing a 25 W alpha V-ty...

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Main Author: Idroas, Mohamad Yusof
Format: Thesis
Language:English
Published: 2012
Subjects:
Online Access:http://eprints.utm.my/id/eprint/30705/5/MohamadYusofIdroasPFKM2012.pdf
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spelling my-utm-ep.307052018-04-27T01:11:48Z Design and performance study of an alpha V-type stirling engine converted from diesel engine 2012-04 Idroas, Mohamad Yusof TJ Mechanical engineering and machinery The design of an alpha V-type Stirling engine converted from Yamaha fourstroke diesel engine was realized with few major modifications on the engine housing, heater head, swirl burner, regenerator, oil lubrication system, auxiliary cooler and flywheel. The methodology of developing a 25 W alpha V-type Stirling engine that is simple in design, low cost and multi-fuel potential due to its easy integration with external heat sources had been successfully established and it is proven practicable. The engine can be marked as a closed regenerative cycle engine that pioneers the research of high temperature differential (HTD) alpha V-type Stirling engine operating in self-pressurized mode using air as a working gas. The engine is featured with 90o phase angle, bore and stroke of 53 mm and 44 mm respectively, total swept volume of 194 cc., total dead volume of 115 cc., volume compression ratio of 2.2, 4 mm spherical bed regenerator and Liquefied Petroleum Gas (LPG) as fuel. At heat input of 1100 J/s, the engine performance was successfully tested. For mechanical shaft power assessment, torque, output-power and thermal efficiency variations were obtained at different engine speeds, hot and cold cylinder temperatures. The engine approximately produced a maximum brake power of 7 Watt, brake thermal efficiency of 0.6% at 717 rpm speed, 811oC hot cylinder temperature and 96oC cold cylinder temperature. For electrical power assessment, the engine is capable of generating a maximum electrical output power of 1.7 Watt, system thermal efficiency of 0.15% at 657 rpm, 855oC hot cylinder temperature and 98oC cold cylinder temperature. The investigation of engine seal, oil lubricant, flywheel size and configuration, regenerator tube diameter, total dead volume and auxiliary cooler have significantly contributed to a successful performance of the engine in self-pressurized mode. 2012-04 Thesis http://eprints.utm.my/id/eprint/30705/ http://eprints.utm.my/id/eprint/30705/5/MohamadYusofIdroasPFKM2012.pdf application/pdf en public phd doctoral 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
Idroas, Mohamad Yusof
Design and performance study of an alpha V-type stirling engine converted from diesel engine
description The design of an alpha V-type Stirling engine converted from Yamaha fourstroke diesel engine was realized with few major modifications on the engine housing, heater head, swirl burner, regenerator, oil lubrication system, auxiliary cooler and flywheel. The methodology of developing a 25 W alpha V-type Stirling engine that is simple in design, low cost and multi-fuel potential due to its easy integration with external heat sources had been successfully established and it is proven practicable. The engine can be marked as a closed regenerative cycle engine that pioneers the research of high temperature differential (HTD) alpha V-type Stirling engine operating in self-pressurized mode using air as a working gas. The engine is featured with 90o phase angle, bore and stroke of 53 mm and 44 mm respectively, total swept volume of 194 cc., total dead volume of 115 cc., volume compression ratio of 2.2, 4 mm spherical bed regenerator and Liquefied Petroleum Gas (LPG) as fuel. At heat input of 1100 J/s, the engine performance was successfully tested. For mechanical shaft power assessment, torque, output-power and thermal efficiency variations were obtained at different engine speeds, hot and cold cylinder temperatures. The engine approximately produced a maximum brake power of 7 Watt, brake thermal efficiency of 0.6% at 717 rpm speed, 811oC hot cylinder temperature and 96oC cold cylinder temperature. For electrical power assessment, the engine is capable of generating a maximum electrical output power of 1.7 Watt, system thermal efficiency of 0.15% at 657 rpm, 855oC hot cylinder temperature and 98oC cold cylinder temperature. The investigation of engine seal, oil lubricant, flywheel size and configuration, regenerator tube diameter, total dead volume and auxiliary cooler have significantly contributed to a successful performance of the engine in self-pressurized mode.
format Thesis
qualification_name Doctor of Philosophy (PhD.)
qualification_level Doctorate
author Idroas, Mohamad Yusof
author_facet Idroas, Mohamad Yusof
author_sort Idroas, Mohamad Yusof
title Design and performance study of an alpha V-type stirling engine converted from diesel engine
title_short Design and performance study of an alpha V-type stirling engine converted from diesel engine
title_full Design and performance study of an alpha V-type stirling engine converted from diesel engine
title_fullStr Design and performance study of an alpha V-type stirling engine converted from diesel engine
title_full_unstemmed Design and performance study of an alpha V-type stirling engine converted from diesel engine
title_sort design and performance study of an alpha v-type stirling engine converted from diesel engine
granting_institution Universiti Teknologi Malaysia, Faculty of Mechanical Engineering
granting_department Faculty of Mechanical Engineering
publishDate 2012
url http://eprints.utm.my/id/eprint/30705/5/MohamadYusofIdroasPFKM2012.pdf
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