Simulation and experimental research on energy conversion efficiency of scroll expander for micro-Compressed Air Energy Storage system

2013 ◽  
Vol 38 (7) ◽  
pp. 884-895 ◽  
Author(s):  
Yang Xinghua ◽  
Pan Jiazhen ◽  
Wang Jidai ◽  
Sun Jing
Keyword(s):  
Energy Storage ◽  
Energy Conversion ◽  
Conversion Efficiency ◽  
Experimental Research ◽  
Storage System ◽  
Energy Storage System ◽  
Energy Conversion Efficiency ◽  
Compressed Air ◽  
Compressed Air Energy Storage ◽  
Scroll Expander

scholarly journals Study on Effects of Inlet Resistance on the Efficiency of Scroll Expander in Micro-Compressed Air Energy Storage System

Energies ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4617
Author(s):  
Aiqin Sun ◽  
Jidai Wang ◽  
Guangqing Chen ◽  
Jihong Wang ◽  
Shihong Miao ◽  
...  
Keyword(s):  
Energy Storage ◽  
Storage System ◽  
Energy Storage System ◽  
Exergy Efficiency ◽  
Compressed Air ◽  
Compressed Air Energy Storage ◽  
Air Inlet ◽  
Scroll Expander ◽  
Air Chamber ◽  
High Flexibility

As an important part of a micro-compressed air energy storage system, the scroll expander directly affects the efficiency of the whole energy storage system. The effects of resistance on the efficiency of scroll expander caused by inlet structure and size are discussed with theory analysis and experimental methods in this paper. Micro-compressed air energy storage system has aroused widespread attention because of its pollution-free, high flexibility, in the community, remote areas power supply. Comprehensive experimental work with the selections of different size and structure of the air inlet of the scroll expander was performed with the cutting angle of air inlet chamber of the scroll expander. The results of the experiments are discussed on how exergy efficiency and inlet flow of the scroll expander were affected resulting from the cutting angles dissected. The results show that a maximum value exists for exergy efficiency of the scroll expander. Therefore, the exergy efficiency of the scroll expander can be effectively improved by enlarging the air inlet port dimension and modifying the size of air chamber.

scholarly journals Stirling-powered solar dish collector with compressed air energy storage system

2021 ◽  
Vol 313 ◽  
pp. 06003
Author(s):  
Giovanni Ricco
Keyword(s):  
Energy Storage ◽  
Solar Power ◽  
Storage System ◽  
Energy Storage System ◽  
Compressed Air ◽  
Compressed Air Energy Storage ◽  
Concentrated Solar Power ◽  
Total Performance ◽  
Proper Energy

At present time, the SE applied to solar dish reflectors is not competitive compared to other concentrated solar power technologies because Stirling CSP equipment has complex and expensive engines and does not have a proper energy storage system. This paper introduces Stirling solar dish technology, proposes a layout of a simple SE with compressed air storage system, and examines the total performance of the equipment.

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