A review of solar-powered Stirling engines and low temperature differential Stirling engines

Kongtragool, Bancha; Wongwises, Somchai

doi:10.1016/s1364-0321(02)00053-9

Cited by 383 publications

(192 citation statements)

References 29 publications

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“…Moreover, a long displacer increases the volume and weight of the Stirling engine. Low-temperature difference (LTD) engines reported by Kongtragool et al [4] effectively reduce the wall area by using a short displacer with relatively large diameter. Hence the plain cylinder method is suitable for low-temperature low-power engines, which are characterised by small displacer stroke, low operating speed, simplicity and low-cost technologies and materials [5].…”

Section: Plain Cylindermentioning

confidence: 99%

Parametric Study of an Air Charged Franchot Engine with Novel Hot and Cold Isothermalizers

Daoud

Friedrich

2017

Inventions

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Abstract:The Stirling engine is an external combustion engine that uses heat exchangers to enhance the addition and removal of energy. This makes the engine power-dense but expensive, less efficient and complicated. In this contribution, the Stirling engine based on the Franchot engine has novel cylindrical fins working as isothermalizers to improve heat transfer without the complications of heat exchangers. Enhancing the power density by isothermalizing work spaces is compared to the bare cylinder optimized by varying the phase angle. The theoretical analysis shows that both the adiabatic and isothermal fins increase the power and efficiency, achieving the Curzon and Ahlborn efficiency at the maximum power point. In comparison to the phase angle method, the finned engine resulted in much lower gas mass flow rate, which leads to a reduction in the regenerator pumping and enthalpy losses. Thus, the Stirling engine has the potential to be simple, cheap, efficient and power-dense, and thus can be used effectively for different applications.

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Section: Plain Cylindermentioning

confidence: 99%

Parametric Study of an Air Charged Franchot Engine with Novel Hot and Cold Isothermalizers

Daoud

Friedrich

2017

Inventions

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“…The parabolic reflector focuses and projects the sunlight onto the surface of the heating head to drive the Stirling engine to generate electricity. In 2008, U.S. SES, Inc. and Sandia National Laboratories co-developed a Stirling solar dish collector power system, the Suncatcher [12]. The power generated from this system is 5-25 kW and the system operation temperature is 750˝C with energy efficiency of 29.4%.…”

Section: Introductionmentioning

confidence: 99%

Biaxial-Type Concentrated Solar Tracking System with a Fresnel Lens for Solar-Thermal Applications

2016

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Abstract:In this paper, an electromechanical, biaxial-type concentrated solar tracking system was designed for solar-thermal applications. In our tracking system, the sunlight was concentrated by the microstructure of Fresnel lens to the heating head of the Stirling engine and two solar cells were installed to provide the power for tracking system operation. In order to obtain the maximum sun power, the tracking system traces the sun with the altitude-azimuth biaxial tracing method and accurately maintains the sun's radiation perpendicular to the plane of the heating head. The results indicated that the position of heating head is an important factor for power collection. If the sunlight can be concentrated to completely cover the heating head with small heat loss, we can obtain the maximum temperature of the heating head of the Stirling engine. Therefore, the temperature of heating head can be higher than 1000˝C in our experiment on a sunny day. Moreover, the results also revealed that the temperature decrease of the heating head is less than the power decrease of solar irradiation because of the latent heat of copper and the small heat loss from the heating head.

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“…Güç pistonu çalışma maddesinin sıkıştırılmasını ve genişlemesini sağlar [14]. Beta tipi motorlarda çevrim, aynı silindir içerisinde çalışan bir piston ve bir yer değiştirme pistonu tarafından gerçekleştirilmektedir.…”

Section: Gi̇ri̇ş (Introduction)unclassified

Beta Ti̇pi̇ Rhombi̇c Hareket Mekani̇zmali Bi̇r Sti̇rli̇ng Motorunun Tasarimi Ve Performans Testleri̇

Aksoy¹,

Karabulut²,

Çınar³

et al. 2016

Gazi Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi

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A review of solar-powered Stirling engines and low temperature differential Stirling engines

Cited by 383 publications

References 29 publications

Parametric Study of an Air Charged Franchot Engine with Novel Hot and Cold Isothermalizers

Parametric Study of an Air Charged Franchot Engine with Novel Hot and Cold Isothermalizers

Biaxial-Type Concentrated Solar Tracking System with a Fresnel Lens for Solar-Thermal Applications

Beta Ti̇pi̇ Rhombi̇c Hareket Mekani̇zmali Bi̇r Sti̇rli̇ng Motorunun Tasarimi Ve Performans Testleri̇

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