An experimental determination of optimal performance a steam ejector refrigerator was proposed which aims to indicate the under various heat source temperatures. A small-scale test bench constructed carry out experiment and determine map. Three primary nozzles with throat diameters 1.4, 1.6, 1.8 mm, were tested an diameter 14.5 providing area ratios 107, 82, 65, respectively. For particular wor...

This study aims to simulate a solar ejector refrigeration system in the region of Adrar (27.82 N, 0.18 W). It is first investigation such this region, importance benefit from free intense energy for cooling and air conditioning reduce using electrical produced by thermal power station which harmful environment causing warming global. theoretical real gas equation (REFPROP database). The inspect...

the purpose of this research is to investigate thermoeconomic optimization and exergy analysis of transcritical co2 refrigeration cycle with an ejector. after modeling thermodynamic equations of elements and considering optimization parameters of emerging temperature of gas of cooler (tgc) , emerging pressure of cooler's gas (pgc) , and evaporative temperature (tevp) , optimization of targ...

Integrated energy systems (IES) for combined power, heat and refrigeration supply achieved a wide application due to high flexibility in matching current loading. So as electricity is easily convertible into any other form of energy, gas engines are widely applied driving characterized by electrical overall efficiency about 45% 90%, respectively. However, the highest thermal at full generated e...

The article deals with pneumatic and hot wire anemometry measurement on subsonic axi-symmetric air ejector. Performances of the ejector with and without pulsations of primary flow are compared, measuring of characteristic pressures and mass flow rates are performed and ejector efficiency is evaluated. The pulsations of primary flow are produced by a synthetic jet generator, which is placed in t...