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Design, manufacturing, and thermodynamic analysis of a gamma-type stirling engine powered by solar energy
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Topgül, Tolga
(
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)
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https://www.sv-jme.eu/sl/article/design-manufacturing-and-thermodynamic-analysis-of-a-gamma-type-stirling-engine-powered-by-solar-energy/
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Abstract
Stirling engines are external combustion engines. This feature eliminates the possible dependency of the engine on a specific energy resource and allows it to work with diverse energy sources, especially solar and other renewable energy sources. Also, Stirling engines could be built in different configurations that have a significant impact on the engine performance. With these aspects, Stirling engines have attracted the attention of researchers. In this study, firstly, a double-cylinder V-type air compressor has been converted to a gamma-type Stirling engine. The block, cylinders, connecting rods, and the crank mechanism of the compressor have been used in the converted engine. For this reason, the air compressor has determined some features of the Stirling engine, such as phase angle, strokes, and cylinder diameter. Other parts of the engine, such as piston, cylinder head, displacer, and displacer cylinder have been manufactured. Secondly, the optimum operating parameters to provide maximum thermal efficiency have been investigated using the nodal thermodynamic analysis considering that the engine is powered by solar energy. In the analysis, helium as the working fluid is used due to its suitable thermodynamic features and safety usage. The optimum working fluid mass and engine speed have been determined as 0.15 g and 100 rad/s for all temperatures (750, 800, and 850 K). Also, the optimum displacer height has been preferred as 190 mm since there is no significant improvement in the thermal efficiency after this dimension. The maximum thermal efficiency has been obtained as 46.5%
Language:
English
Keywords:
Stirling engines
,
operating parameters
,
engine performance
,
thermal efficiency
,
nodal analysis
Work type:
Article
Typology:
1.01 - Original Scientific Article
Organization:
FS - Faculty of Mechanical Engineering
Publication status:
Published
Publication version:
Version of Record
Publication date:
01.12.2022
Year:
2022
Number of pages:
Str. 757-770
Numbering:
Vol. 68, no. 12
PID:
20.500.12556/RUL-143811
UDC:
536
ISSN on article:
0039-2480
DOI:
10.5545/sv-jme.2022.368
COBISS.SI-ID:
137429763
Publication date in RUL:
12.01.2023
Views:
368
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59
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Record is a part of a journal
Title:
Strojniški vestnik
Shortened title:
Stroj. vestn.
Publisher:
Zveza strojnih inženirjev in tehnikov Slovenije [etc.], = Association of Mechanical Engineers and Technicians of Slovenia [etc.
ISSN:
0039-2480
COBISS.SI-ID:
762116
Licences
License:
CC BY 4.0, Creative Commons Attribution 4.0 International
Link:
http://creativecommons.org/licenses/by/4.0/
Description:
This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Secondary language
Language:
Slovenian
Title:
Zasnova, izdelava in termodinamična analiza Stirlingovega motorja tipa gama na sončno energijo
Keywords:
Stirlingov motor tipa gama
,
obratovalni parametri
,
zmogljivost motorja
,
toplotni izkoristek
,
vozliščna termodinamična analiza
,
sončna energija
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