Optimal coupling and feasibility of a solar-powered year-round ejector air conditioner

Journal Article · Tue Jun 01 00:00:00 EDT 1993 · Solar Energy (Journal of Solar Energy Science and Engineering); (United States)

DOI:https://doi.org/10.1016/0038-092X(93)90113-3· OSTI ID:6224058

Sokolov, M; Hershgal, D ^[1]

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

An ejector refrigeration system that uses a conventional refrigerant (R-114) is introduced as a possible mechanism for providing solar-based air-conditioning. Optimal coupling conditions between the collectors' energy output and energy requirements of the cooling system, are investigated. Operation at such optimal conditions assures maximized overall efficiency. Procedures leading to the evaluation of the performance of a real system are disclosed. Design curves for such a system with R-114 as refrigerant are provided. A multi-ejectors arrangement that provides an efficient adjustment for variations of ambient conditions, is described. Year-round air-conditioning is facilitated by rerouting the refrigerant flow through a heating mode of the system. Calculations are carried out for illustrative configurations in which relatively low condensing temperature (water reservoirs, cooling towers, or moderate climate) can be maintained.

• OSTI ID: 6224058
• Journal Information: Solar Energy (Journal of Solar Energy Science and Engineering); (United States), Vol. 50:6; ISSN 0038-092X
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
SOLAR COOLING SYSTEMS
FEASIBILITY STUDIES
STEAM JET EJECTORS
SOLAR HEATING SYSTEMS
COUPLING
REFRIGERATION
SOLAR AIR CONDITIONING
SOLAR AIR HEATERS
AIR CONDITIONING
AIR HEATERS
COOLING
ENERGY SYSTEMS
EQUIPMENT
HEATERS
HEATING SYSTEMS
SOLAR COLLECTORS
SOLAR EQUIPMENT
VAPOR JET EJECTORS
140901* - Solar Thermal Utilization- Space Heating & Cooling