Discusses the conservation of energy in a refrigerant ejector refrigerating machine using heat driven from the concentrator collectors. The working refrigerant was R113. The design of an ejector operating in an air conditioning and refrigerating system with a low thermal source (70degC to 100degC) is presented. The influence of three major parameters - boiler, condenser, and evaporator temperature - on ejector efficiency is discussed. Experimental results show that the condenser temperature is the major influence at a low evaporator temperature. The maximum ejector efficiency was 31%.

KEYWORDS: year 1995, designing, experiment, ejectors, air conditioning, refrigeration, energy conservation, refrigerants, R113, boilers, condensers, evaporators, temperature, efficiency, performance, measuring