Development of a 100-Watt-Scale Beta-Type Low Temperature Difference Stirling Engine Prototype

This paper documents the ongoing design process of a Stirling engine prototype for a source temperature of 95 °C, aiming to achieve shaft power on the order of 100 Watts. The engine will serve to produce experimental data for the validation of a numerical low temperature Stirling model. The higher-l...

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Autores principales:	Lottmann Matthias, de Rouyan Zachary, Hasanovich Linda, Middleton Steven, Nicol-Seto Michael, Speer Connor, Nobes David
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/78653aa751144394b1d2d969647d32b4
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spelling	oai:doaj.org-article:78653aa751144394b1d2d969647d32b42021-11-12T11:43:27ZDevelopment of a 100-Watt-Scale Beta-Type Low Temperature Difference Stirling Engine Prototype2267-124210.1051/e3sconf/202131308004https://doaj.org/article/78653aa751144394b1d2d969647d32b42021-01-01T00:00:00Zhttps://www.e3s-conferences.org/articles/e3sconf/pdf/2021/89/e3sconf_isec2021_08004.pdfhttps://doaj.org/toc/2267-1242This paper documents the ongoing design process of a Stirling engine prototype for a source temperature of 95 °C, aiming to achieve shaft power on the order of 100 Watts. The engine will serve to produce experimental data for the validation of a numerical low temperature Stirling model. The higher-level motivation is to assess the technical and economical potential of producing power from abundant sources of low temperature heat by using Stirling engines. Design decisions are governed by the goals of minimizing energy losses and maximizing the variability of operating points through variable heat exchanger geometry, compression ratio and charge pressure. The resulting design is a beta engine with a total gas volume around 100 liters. It features displacer and power pistons in a combined cylindrical working space and a mechanism using pivoting links similar to a bellcrank. The stroke of the power piston is adjustable while maintaining a constant top dead center position. A component critical for friction is the power piston seal, for which a low friction rolling seal and a conventional sliding seal were considered. As of June 2021, the development is at an advanced state and the first set of components are entering production.Lottmann Matthiasde Rouyan ZacharyHasanovich LindaMiddleton StevenNicol-Seto MichaelSpeer ConnorNobes DavidEDP SciencesarticleEnvironmental sciencesGE1-350ENFRE3S Web of Conferences, Vol 313, p 08004 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	Environmental sciences GE1-350
spellingShingle	Environmental sciences GE1-350 Lottmann Matthias de Rouyan Zachary Hasanovich Linda Middleton Steven Nicol-Seto Michael Speer Connor Nobes David Development of a 100-Watt-Scale Beta-Type Low Temperature Difference Stirling Engine Prototype
description	This paper documents the ongoing design process of a Stirling engine prototype for a source temperature of 95 °C, aiming to achieve shaft power on the order of 100 Watts. The engine will serve to produce experimental data for the validation of a numerical low temperature Stirling model. The higher-level motivation is to assess the technical and economical potential of producing power from abundant sources of low temperature heat by using Stirling engines. Design decisions are governed by the goals of minimizing energy losses and maximizing the variability of operating points through variable heat exchanger geometry, compression ratio and charge pressure. The resulting design is a beta engine with a total gas volume around 100 liters. It features displacer and power pistons in a combined cylindrical working space and a mechanism using pivoting links similar to a bellcrank. The stroke of the power piston is adjustable while maintaining a constant top dead center position. A component critical for friction is the power piston seal, for which a low friction rolling seal and a conventional sliding seal were considered. As of June 2021, the development is at an advanced state and the first set of components are entering production.
format	article
author	Lottmann Matthias de Rouyan Zachary Hasanovich Linda Middleton Steven Nicol-Seto Michael Speer Connor Nobes David
author_facet	Lottmann Matthias de Rouyan Zachary Hasanovich Linda Middleton Steven Nicol-Seto Michael Speer Connor Nobes David
author_sort	Lottmann Matthias
title	Development of a 100-Watt-Scale Beta-Type Low Temperature Difference Stirling Engine Prototype
title_short	Development of a 100-Watt-Scale Beta-Type Low Temperature Difference Stirling Engine Prototype
title_full	Development of a 100-Watt-Scale Beta-Type Low Temperature Difference Stirling Engine Prototype
title_fullStr	Development of a 100-Watt-Scale Beta-Type Low Temperature Difference Stirling Engine Prototype
title_full_unstemmed	Development of a 100-Watt-Scale Beta-Type Low Temperature Difference Stirling Engine Prototype
title_sort	development of a 100-watt-scale beta-type low temperature difference stirling engine prototype
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/78653aa751144394b1d2d969647d32b4
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Development of a 100-Watt-Scale Beta-Type Low Temperature Difference Stirling Engine Prototype

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