Tuesday, August 22nd, 2017

Numerical simulation of a solar-assisted ejector air conditioning system with cold storage

Publication year: 2010brbSource:/b Energy, In Press, Corrected Proof, Available online 24 December 2010brBogdan M., Diaconu , Szabolcs, Varga , Armando C., OliveirabrIndoor space cooling represents a large potential for solar energy use due to the relative coincidence between energy availability and cooling demand. Solar-assisted air conditioning (AC) applications emerged with the development of high efficiency solar collectors. Energy storage (hot or cold) must be implemented for solar-assisted AC applications when cooling demand is present during intervals without available solar energy and also for cooling capacity optimisation (“peak shaving”).The present paper analyses a solar-assisted ejector cooling system with cold storage. Simulations were carried out over one year considering climatic data for a hot location (Béchar, Algeria) and the performance of the system…br Research highlights: ► Solar-assisted air conditioning is an interesting technology since the peak demand is to some extent synchronous and proportional to the available energy from the Sun. ► Energy storage component is essential in a solar-assisted air conditioning system if the cooling demand is continuous. ► Cold storage system capacity influences both the comfort and the air conditioning system parameters and performance. ► Although simple, cheap and reliable, the ejector cycle lowers the overall efficiency of the solar-assisted air conditioning system.

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