Executive Summary : | The demand for air conditioning has risen steadily over the past ten years. However, this also put country’s electric grid on strain leading to enhanced energy imports from foreign countries and consequently CO2 emissions. Also, in rural India 16-40% perishable agricultural products like fruits and vegetables are wasted due to unavailability of cold storage and transportation system integrated with cold storage. Research and development of value-added technologies are needed to improve green and smart cooling strategies. Moreover, practicing low-energy, solar, geothermal energy driven technologies can help mitigate substantial carbon emissions. Problems of global warming and ozone depletion are mainly due to the refrigerants CFC, HCFC, HFC associated with vapour compression refrigeration systems VCRS. This shifted the research focus on sorption. Sorption cooling systems allows us to go completely off-grid. The major energy requirement to run these systems is in the form of heat and can be adequately supplied through solar thermal resource. The auxiliary electrical power required to run the pump and controlling the valves can easily be addressed by integrating the system with solar PV. Evidently, sorption cooling system has a very high potential for off-grid solar cooling applications. Absorption refrigeration system, although a mature technology has issues like crystallization of refrigerant, corrosion, small range of operating temperatures etc. However, adsorption refrigeration systems are devoid of such problems. On the other hand, existing adsorption systems have low COP and specific cooling power SCP as compared to absorption refrigeration systems. To counter this short falling of adsorption cooling, we propose the implementation of combined mass and thermal wave heat recovery (CMTWHR) cycle based adsorption cooling system with enhanced COP as high as two stage LiBr-H2O absorption cooling systems. For thermal wave heat recovery cycle, the HTF inlet and outlet temperatures to and from the bed undergoing sensible heating and desorption are expected to be maintained at constant values. Most of the heat rejection from adsorption bed is regenerated and only a small portion of temperature rise of the HTF is required in the heater or generator part. Salient features: • Concentrated/non-concentrated type solar collectors as solar heat receiver or generator to heat the heat transfer fluid (HTF) Water will be explored. • Activated carbon-Methanol, and Activated carbon-Ethanol will be explored as working pair. • Advanced thermodynamic cycle namely, combined mass and thermal wave heat recovery CMTWHR cycle will be implemented. • Components of adsorption cooling system consist of two adsorption beds , condenser, evaporator, HTF cooling unit other than the generator. • Auxiliary electric power supply to run the HTF pump and controlling valves will be addressed by integrating solar PV panels. • Fully automated and optimally timed valve operations |