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Analysis of a high performance model Stirling engine with compact porous-sheets heat exchangers
Li, Zhigang; Haramura, Yoshihiko; Kato, Yohei; Tang, Dawei - In: Energy 64 (2014) C, pp. 31-43
A high performance model Stirling engine, in which the heater, regenerator and cooler as a whole is formed by hundreds … Fluid Dynamics (CFD) method, and is validated by analytical solutions and experimental data. An optimization method is also … volume. Given the same operating conditions, the optimized porous-sheets regenerator has a significantly lower total loss of …
Persistent link: https://www.econbiz.de/10011053062
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Thermodynamic analysis of a Stirling engine including regenerator dead volume
Puech, Pascal; Tishkova, Victoria - In: Renewable Energy 36 (2011) 2, pp. 872-878
sinusoidal variations of the volume. The regenerator in a Stirling engine is an internal heat exchanger allowing to reach high … efficiency. We used an isothermal model to analyse the net work and the heat stored in the regenerator during a complete cycle …. We show that the engine efficiency with perfect regeneration doesn’t depend on the regenerator dead volume but this dead …
Persistent link: https://www.econbiz.de/10010805569
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Design and performance optimization of GPU-3 Stirling engines
Timoumi, Youssef; Tlili, Iskander; Ben Nasrallah, Sassi - In: Energy 33 (2008) 7, pp. 1100-1114
To increase the performance of Stirling engines and analyze their operations, a second-order Stirling model, which includes thermal losses, has been developed and used to optimize the performance and design parameters of the engine. This model has been tested using the experimental data obtained...
Persistent link: https://www.econbiz.de/10010807554
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Analysis and design consideration of mean temperature differential Stirling engine for solar application
Tlili, Iskander; Timoumi, Youssef; Nasrallah, Sassi Ben - In: Renewable Energy 33 (2008) 8, pp. 1911-1921
This article presents a technical innovation, study of solar power system based on the Stirling dish (SD) technology and design considerations to be taken in designing of a mean temperature differential Stirling engine for solar application. The target power source will be solar dish/Stirling...
Persistent link: https://www.econbiz.de/10011044095
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Thermodynamic and Energy Study of a Regenerator in Gas Turbine Cycle and Optimization of Performances
Abed, Saria; Khir, Taher; Ben Brahim, Ammar - In: International Journal of Energy Optimization and … 5 (2016) 2, pp. 25-44
that measure cycles' performance. Subsequently, numerical optimization is established through EES software to determinate … regenerator has an important effectiveness (˜ 82%) which improves the heat transfer exchange; also a high compressor pressure …
Persistent link: https://www.econbiz.de/10012044543
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Optimization of rhombic drive mechanism used in beta-type Stirling engine based on dimensionless analysis
Cheng, Chin-Hsiang; Yang, Hang-Suin - In: Energy 64 (2014) C, pp. 970-978
In the present study, optimization of rhombic drive mechanism used in a beta-type Stirling engine is performed based on … the shaft work, and the optimization of these parameters is attempted. Eventually, design charts that help design the …
Persistent link: https://www.econbiz.de/10010810969
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Performance Analysis and Optimization of a Solar Powered Stirling Engine with Heat Transfer Considerations
Chen, Chieh-Li; Ho, Chia-En; Yau, Her-Terng - In: Energies 5 (2012) 9, pp. 3573-3585
This paper investigates the optimization of the performance of a solar powered Stirling engine based on finite … collector temperature and the engine thermal efficiency as the optimization parameters. The maximum output power of engine and …
Persistent link: https://www.econbiz.de/10010676030
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Displacer gap losses in beta and gamma Stirling engines
Mabrouk, M.T.; Kheiri, A.; Feidt, M. - In: Energy 72 (2014) C, pp. 135-144
An analytical model has been developed to evaluate "displacer gap losses" in the clearance between the displacer and the cylinder in both β and γ configurations of Stirling engines. Displacer gap losses are the sum of the "shuttle heat transfer" and the "enthalpy pumping".
Persistent link: https://www.econbiz.de/10011053552
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Optimization of Stirling engine design parameters using neural networks
Hooshang, M.; Askari Moghadam, R.; Alizadeh Nia, S.; … - In: Renewable Energy 74 (2015) C, pp. 855-866
This paper presents a new optimization procedure for Stirling engines based on neural network concepts. Based on … optimization procedure is performed for three typical design variables for a given precision which has the capability to be …
Persistent link: https://www.econbiz.de/10011076910
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Development of a Transient Model of a Stirling-Based CHP System
Ulloa, Carlos; Míguez, José Luis; Porteiro, Jacobo; … - In: Energies 6 (2013) 7, pp. 3115-3133
Although the Stirling engine was invented in 1816, this heat engine still continues to be investigated due to the variety of energy sources that can be used to power it (e.g., solar energy, fossil fuels, biomass, and geothermal energy). To study the performance of these machines, it is necessary...
Persistent link: https://www.econbiz.de/10011030935