Solar-powered compression-enhanced ejector air conditioner

Journal Article · Wed Sep 01 04:00:00 EDT 1993 · Solar Energy (Journal of Solar Energy Science and Engineering); (United States)

DOI:https://doi.org/10.1016/0038-092X(93)90095-6· OSTI ID:5536422

Sokolov, M; Hershgal, D ^[1]

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1. Tel-Aviv Univ., Ramat Aviv (Israel)

This article is an extension of an earlier investigation into the possibility of adaptation of the ejector refrigeration cycle to solar air-conditioning. In a previous work the ejector cycle has been proven a viable option only for a limited number of cases. These include systems with combined (heating, cooling, and hot water supply) loads where means for obtaining low condensing temperature are available. The purpose of this work is to extend the applicability of such systems by enhancing their efficiency and thereby improving their economical attractiveness. This is done by introducing the compression enhanced ejector system in which mechanical (rather than thermal) energy is used to boost the pressure of the secondary stream into the ejector, Such a boost improves the performance of the whole system. Similar to the conventional ejector, the compression-enhanced ejector system utilizes practically the same hardware for solar heating during the winter and for solar cooling during the summer. Thus, it is capable of providing a year-round space air-conditioning. Optimization of the best combination in which the solar and refrigeration systems combine through the vapor generator working temperature is also presented.

• OSTI ID: 5536422
• Journal Information: Solar Energy (Journal of Solar Energy Science and Engineering); (United States), Journal Name: Solar Energy (Journal of Solar Energy Science and Engineering); (United States) Vol. 51:3; ISSN SRENA4; ISSN 0038-092X
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140901* -- Solar Thermal Utilization-- Space Heating & Cooling
141000 -- Solar Collectors & Concentrators
AIR CONDITIONING
COOLING
EFFICIENCY
HEATING
OPTIMIZATION
REFRIGERATION
SOLAR AIR CONDITIONING
SOLAR HEATING
SOLAR REFRIGERATION
VAPOR COMPRESSION REFRIGERATION CYCLE