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

Topgül, Tolga; Okur, Melih; Şahin, Fatih; Çınar, Can

doi:10.1016/j.jestch.2022.101152

Cited by 3 publications

(5 citation statements)

References 38 publications

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“…calculated parameter. Similar to the experimental studies in the literature [16], [41] to [44], the route mean square method was used for uncertainty analysis. Additionally, the error bars based on the accuracies of the measurement equipment and the maximum uncertainty are used in Fig.…”

Section: Results Of the Pre-test And Comparison With Nodal Thermodyna...mentioning

confidence: 99%

“…Additionally, the error bars based on the accuracies of the measurement equipment and the maximum uncertainty are used in Fig. 10 similar to the literature [16] and [45]. Some of the error bars may not be noticed due to their small values or scale.…”

Section: Results Of the Pre-test And Comparison With Nodal Thermodyna...mentioning

confidence: 99%

“…The expansion and displacer cylinders were combined via a hot-end connection. The advantages of the hot-end connection in the Stirling engines were previously presented by Topgül et al [16] and Kentfield [29]. During the 2-3 process in which the crankshaft moves from 45° to 135° CA, the piston is almost constant around the BDC.…”

Section: Description Of the Converted Stirling Enginementioning

confidence: 96%

“…Topgül et al [16] experimentally investigated the effect of the connection type (cold-end and hot-end) between the expansion and displacer cylinders on the output power and torque of a γ-type Stirling engine. It was observed that the engine performance improves with the hot-end connection compared with the coldend connection at 30 °C cold and 200 °C hot source temperatures.…”

Section: Introductionmentioning

confidence: 99%

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Design, Manufacturing, and Thermodynamic Analysis of a Gamma-type Stirling Engine Powered by Solar Energy

Topgül¹

2023

sv-jme

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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%.

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Section: Results Of the Pre-test And Comparison With Nodal Thermodyna...mentioning

confidence: 99%

Section: Results Of the Pre-test And Comparison With Nodal Thermodyna...mentioning

confidence: 99%

Section: Description Of the Converted Stirling Enginementioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

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Design, Manufacturing, and Thermodynamic Analysis of a Gamma-type Stirling Engine Powered by Solar Energy

Topgül¹

2023

sv-jme

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“…Ini dapat dilakukan dengan bantuan regenerator yang dapat bertindak sebagai penukar panas internal. Jika regenerator dipasang, kalor q41 dipertukarkan secara internal dan kalor q12 diperoleh dari sumber panas eksternal atau dengan memanaskan bahan bakar secara eksternal [25].…”

Section: Mesin Pembakaran Luar Atau Yang Bisa Disebut Denganunclassified

Performance of solar dish stirling engine for remote area needs

Hakim

Putra

2023

JTMI

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Kebutuhan listrik merupakan kebutuhan utama masyarakat Indonesia dan setiap orang. Pada tahun 2020, terdapat 433 desa tanpa listrik di Indonesia. Indonesia memiliki potensi besar sebagai sumber energi terbarukan. Menurut Kementerian ESDM, total potensi energi terbarukan Indonesia adalah 417,8 gigawatt (GW). Potensi terbesar berasal dari energi surya atau matahari sebesar 207,8 GW. Salah satu cara untuk memanfaatkan potensi energi surya yaitu dengan menggunakan Solar Dish Stirling Engine. Kajian ini menggunakan mesin stirling tipe alpha dan udara sebagai fluida kerja. Kajian ini bertujuan untuk mengetahui kecepatan putaran mesin, daya output mesin stirling, dan efisiensi daya output mesin stirling dengan menggunakan empat variasi panjang lengan piston yaitu 5 cm – 5 cm (LH-LC), 5 cm – 4,3 cm (LH-LC), 4,3 cm – 5 cm (LH-LC), dan 4,3 cm – 4,3 cm (LH-LC). Pada kajian ini, digunakan lampu halogen 500 Watt sebagai pengganti sumber panas matahri. Dari hasil kajian, diperoleh kecepatan rpm maksimum pada 852 rpm dengan panjang lengan di 5 cm – 5 cm (LH-LC). Hasil kajian juga diperoleh bahwa kecepatan putaran mesin optimum terdapat pada panjang lengan 5 cm – 5 cm (LH-LC) dengan nilai 0,39 W pada 839 rpm. Kinerja atau efisiensi mesin stirling ini terbesar yaitu 6,5% pada panjang lengan 5 cm – 5 cm (LH-LC).

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Thermal characteristics of gasoline engine powered by petrol and LPG under variable speed, compression ratio

Al-Dawody,

Aboud,

Al-Farhany

et al. 2024

Australian Journal of Mechanical Engineering

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

Cited by 3 publications

References 38 publications

Design, Manufacturing, and Thermodynamic Analysis of a Gamma-type Stirling Engine Powered by Solar Energy

Design, Manufacturing, and Thermodynamic Analysis of a Gamma-type Stirling Engine Powered by Solar Energy

Performance of solar dish stirling engine for remote area needs

Thermal characteristics of gasoline engine powered by petrol and LPG under variable speed, compression ratio

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