Energy saving of complementary of primary return air supply reheat and outdoor air precooling

For the primary return air conditioning system, in summer condition, when the humidity load in the air conditioning area is large, the dew-point air supply can only ensure the set temperature, and cause the high humidity, affecting the thermal comfort of the human body. Increasing the reheat will lead to the cold and heat offset phenomenon. Puts forward a scheme to improve indoor thermal comfort by reheating the outdoor air. The results show that the energy consumption of reheated air supply system can be reduced by 6% to 15% using outdoor air reheat. Thinks that the complementary measures of air supply reheat and outdoor air precooling can reduce the energy consumption of air conditioning to a certain extent and improve the indoor thermal comfort.