Abstract
An endoreversible model is used to simulate the dynamic behavior of a solar driven absorption refrigerator, the cycle under different operating and design conditions. A global time minimization procedure is performed to reach maximum performances. To evaluate the influence of the cold temperature on the system’s performances, results are carried out for three values of this temperature. They are presented in normalized charts for general applications. The minimum time set point temperature, entropy and maximum refrigeration load are sharp and therefore, are important to be considered for system design.
Highlights
Refrigeration and air conditioning consume an enormous amount of energy
Absorption refrigerator could be driven by various energy sources
The use of solar energy in refrigeration can be very useful to limit the growth of the electric energy demand in summer and for sustaining the development of technologies
Summary
Refrigeration and air conditioning consume an enormous amount of energy. Solar-powered plants allow the saving of an important amount of energy compared to electric driven ones. Absorption refrigerator could be driven by various energy sources. Absolute low noise is one of their prevailed advantages. They cause zero or minimum ozone depletion because they do not use any CFC or HFCs refrigerant as working fluid [1]. From these points of view, the solar-assisted absorption refrigeration shows a very promising future. The maximum demand for cooling coincides with the maximum availability of solar radiation, whereas conventional electric driven systems have the problem of providing their minimum capacity in the hottest day hours [2]. The use of solar energy in refrigeration can be very useful to limit the growth of the electric energy demand in summer and for sustaining the development of technologies
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