According to the heat transfer between radiant ceiling unit and surrounding environment

based on the reasonable simplification of configuration of radiant ceilings

set up theoretical calculation models of single piece of the capillary cooling radiant ceiling unit and two units in series combination to calculate their cooling capacities. Then tests their cooling capacities under the condition of 25℃ room temperature

15~19℃ supply water temperature. The comparison between measured data and calculation results show that theoretically calculated cooling capacity of single unit and of two series-connected units approach the experimental testing data

which shows that the theoretical calculation models are reasonable and feasible and can be used to predict the cooling capacities under real conditions.