Cooling/heating floor air conditioning systems in residential buildings

The present HVAC equipments for the residential buildings in the Hot-summer-and-Cold-winter climate region are still at a high energy consuming level. So that the high efficiency HVAC system is an urgently need for achieving the preset government energy saving goal. With its advantage of highly sanitary, highly comfortable and uniform of temperature field, the floor radiation heating system has been widely accepted. This paper has put forward a new way in air-conditioning, which combine the fresh-air supply system and such floor radiation system for the dehumidification and cooling in summer or heating in winter. By analyzing its advantages and limitations, we found that this it can improve the IAQ of residential building which is called Cooling/ Heating Floor AC System, while keep high efficiency quality. We also recommended an methodology for the HVAC system operating, which will ensure the reduction of energy cost of users.