Design, development & performance evaluation of sustainable, hybrid air-conditioning system for automobiles
DOI:
https://doi.org/10.6977/IJoSI.202409_8(3).0007Keywords:
sustainable cooling technologies, direct evatporative cooling, specific cooling power, cellulose grid, vehicle compartments' air cooling, vapor adsorption regiseration, carbon granulesAbstract
Performance of the vapor adsorption refrigeration system is based on controlling the pressure of refrigerant, multi fluid temperatures, ambient and cabin air temperatures, and humidity to maintain thermal equilibrium. A direct evaporative cooling (DEC) system combined with adsorption refrigeration technique is sustainable as it is driven by vehicle exhaust. The heat potential in the exhaust gases of a vehicle which otherwise is going to be wasted to the atmosphere, can be (HAC). The designed and fabricated HAC model is fitted in a small vehicle and vehicle exhaust is provided to this model for finding its COP and cooling potential with the help of a customized data acquisition and controlling system. This research describes the design development and testing of an innovative HAC system for small cabin volume cars. The theoretical and actual COP of HAC system is derived at maximum blower speed and two DEC fans working conditions. The theoretical COP of HAC system varies from 0.57 to 0.66 and the actual COP varies from 0.57 to 0.47 with vehicle speed. As velocity increases COP decreases. Increased COP of the HAC system promises its easy adaptability for automotives at reduced cost.
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