Experimental investigation of the effects of hot-end and cold-end connection on the performance of a gamma type Stirling engine

External combustion Stirling engines are considered as an alternative to the solution of increasing energy and environmental problems due to their ability to work with any heat source and to be an efficient energy conversion system. In this study, the effects of hot-end and cold-end connections of p...

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Main Authors: Tolga Topgül, Melih Okur, Fatih Şahin, Can Çınar
Format: Article
Language:English
Published: Elsevier 2022-12-01
Series:Engineering Science and Technology, an International Journal
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S221509862200060X
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author Tolga Topgül
Melih Okur
Fatih Şahin
Can Çınar
author_facet Tolga Topgül
Melih Okur
Fatih Şahin
Can Çınar
author_sort Tolga Topgül
collection DOAJ
description External combustion Stirling engines are considered as an alternative to the solution of increasing energy and environmental problems due to their ability to work with any heat source and to be an efficient energy conversion system. In this study, the effects of hot-end and cold-end connections of power and displacer cylinders on the performance of a gamma-type Stirling engine (GTSE) were investigated experimentally. The effects of the connection type between the power and displacer cylinders on the engine performance were compared at the same operating conditions without making any structural modifications to the engine. The performance tests were conducted using helium as the working gas at different charging pressures. The experimental results show that the maximum values of the engine torque and output power were obtained at a certain charging pressure for both hot-end and cold-end connected engines. Compared to the cold-end connection (CEC) engine, the maximum torque and output power increased in the hot-end connection (HEC) engine at the same temperature range. In the HEC engine, the maximum engine torque and power were achieved as 0.5665 Nm and 23.35 W, resulting in an increase of 68.4% and 84.7% compared to those of the CEC engine, respectively.
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spelling doaj.art-e16e174b8aed4b8cbed85feea61633be2022-12-22T03:09:17ZengElsevierEngineering Science and Technology, an International Journal2215-09862022-12-0136101152Experimental investigation of the effects of hot-end and cold-end connection on the performance of a gamma type Stirling engineTolga Topgül0Melih Okur1Fatih Şahin2Can Çınar3Corresponding author.; Department of Automotive Engineering, Faculty of Technology, Gazi University, Ankara, TurkeyDepartment of Automotive Engineering, Faculty of Technology, Gazi University, Ankara, TurkeyDepartment of Automotive Engineering, Faculty of Technology, Gazi University, Ankara, TurkeyDepartment of Automotive Engineering, Faculty of Technology, Gazi University, Ankara, TurkeyExternal combustion Stirling engines are considered as an alternative to the solution of increasing energy and environmental problems due to their ability to work with any heat source and to be an efficient energy conversion system. In this study, the effects of hot-end and cold-end connections of power and displacer cylinders on the performance of a gamma-type Stirling engine (GTSE) were investigated experimentally. The effects of the connection type between the power and displacer cylinders on the engine performance were compared at the same operating conditions without making any structural modifications to the engine. The performance tests were conducted using helium as the working gas at different charging pressures. The experimental results show that the maximum values of the engine torque and output power were obtained at a certain charging pressure for both hot-end and cold-end connected engines. Compared to the cold-end connection (CEC) engine, the maximum torque and output power increased in the hot-end connection (HEC) engine at the same temperature range. In the HEC engine, the maximum engine torque and power were achieved as 0.5665 Nm and 23.35 W, resulting in an increase of 68.4% and 84.7% compared to those of the CEC engine, respectively.http://www.sciencedirect.com/science/article/pii/S221509862200060XStirling engineGamma-type engineCold-end connectionHot-end connectionEngine performance
spellingShingle Tolga Topgül
Melih Okur
Fatih Şahin
Can Çınar
Experimental investigation of the effects of hot-end and cold-end connection on the performance of a gamma type Stirling engine
Engineering Science and Technology, an International Journal
Stirling engine
Gamma-type engine
Cold-end connection
Hot-end connection
Engine performance
title Experimental investigation of the effects of hot-end and cold-end connection on the performance of a gamma type Stirling engine
title_full Experimental investigation of the effects of hot-end and cold-end connection on the performance of a gamma type Stirling engine
title_fullStr Experimental investigation of the effects of hot-end and cold-end connection on the performance of a gamma type Stirling engine
title_full_unstemmed Experimental investigation of the effects of hot-end and cold-end connection on the performance of a gamma type Stirling engine
title_short Experimental investigation of the effects of hot-end and cold-end connection on the performance of a gamma type Stirling engine
title_sort experimental investigation of the effects of hot end and cold end connection on the performance of a gamma type stirling engine
topic Stirling engine
Gamma-type engine
Cold-end connection
Hot-end connection
Engine performance
url http://www.sciencedirect.com/science/article/pii/S221509862200060X
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AT fatihsahin experimentalinvestigationoftheeffectsofhotendandcoldendconnectionontheperformanceofagammatypestirlingengine
AT cancınar experimentalinvestigationoftheeffectsofhotendandcoldendconnectionontheperformanceofagammatypestirlingengine