Abstract
Solar thermal cooling is the best alternative solution to overcome the problems associated with using nonrenewable resources. There are several thermal cooling methods developed differing from each other according to the thermodynamic cycle and type of refrigerant used. Recent developments in absorption and adsorption solar cooling systems are presented. Summarized thermodynamic modeling for both absorption and adsorption solar cooling systems is given. Brief thermal analysis among the types of solar collectors is presented. System efficiencies and optimization analysis are presented. The influences of geometrical, system configurations, and physical parameters on the performance of solar thermal sorption cooling system are investigated. The basis for the design of absorption and adsorption solar cooling systems is provided. Several case studies in different climatic conditions are presented. Economic feasibility for both systems is discussed. Comparison between the absorption and adsorption solar cooling system is summarized.
Highlights
It is well known that the nonrenewable sources in the world are finite and they will be consumed.[1,2,3,4] Up to date, 80% of electricity is generated by fossil fuels.[1]
The active solar cooling is classified into two categories: using traditional air conditioning system powered by photovoltaic (PV) panels and thermal cooling method
Solar cooling is a promising technology because solar radiation is in phase with the demand for cooling
Summary
It is well known that the nonrenewable sources in the world are finite and they will be consumed.[1,2,3,4] Up to date, 80% of electricity is generated by fossil fuels.[1]. This system can be used for air conditioning and freezing at moderate generation temperatures between 80°C and 110°C while obtaining evaporator temperatures between 230°C and 220°C with COPs around 0.60.32 Llamas-Guillen et al.[33] used evacuated tube solar collector to drive the one-stage ammonia–lithium nitrate air-cooled chiller. The system efficiency has improved by using high-temperature solar receiver, double-effect chiller, advanced control, and improved chiller efficiency.[53] Hang et al.[30,54] investigated the system performance by using linear regression model and central composite design Their analyses showed that the economic performance is inversely proportional to the thermal system performance.[54] Atmaca and Yigit[17] investigated the effect of several parameters (inlet generator temperature, surface area of absorber and heat exchanger, volume of storage tank) on system performance.
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