Design and experimental study of a mixed energy recovery system, heat pipes and indirect evaporative equipment for air conditioning (original) (raw)
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This paper suggests a heat recovery concept that is based on preheating/precooling the cold/hot fresh outside air by means of the relatively hot/cold exhaust air in winter/summer weather conditions. To investigate the feasibility of such a concept, an experimental setup is established to simulate conditions similar to an All-Air HVAC system. The prototype consists of a 6.7-m3 air-conditioned chamber by means of a split unit of 5.3-kW capacity. The heat recovery module consists of a duct system that is used to reroute the exhaust air from a conditioned chamber to flow through the fin side of a fin-and-tube heat exchanger of crossflow type. At the same time, outside, fresh air is flowing through the tube side of the fin-and-tube heat exchanger. A parametric study is performed to assess the amount of heat that can be recovered by varying the mass flow rates on both the duct and heat exchanger sides. The results show that up to 200 W of power can be saved for an exhaust flow rate of 0.1...
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Journal of emerging technologies and innovative research, 2021
This paper is present about the Energy Recovery Ventilator in which we study about how the heat is restored or exchange from heating to cooling. A Copper pipe is used as a heat exchanger. Heat Recovery Ventilator for Cooling the incoming fresh air. There is two streams of return and fresh air is connected with heat pipe to investigate the thermal performance and effectiveness of heat recovery system. A very important product is used in this ERV is silica gel. In this ERV there have a two major application which have air dehumidification and enthalpy recovery. Controlling of relative humidity is a consecutive aspect of maintaining interior air quality in an air-conditioned space. Basically this Energy Recovery Ventilator is used where air conditioning is used. Different type of energy ventilation is used in different location and purpose. Result shows that the effectiveness is very closer to the best effectiveness at fresh air inlet temperature closer the fluid steering temperature of heat pipes.