Taking residential buildings as the study objects

for three different residential load types such as low load

medium load

and high load type

indoor thermal environments of different load sharing-rates are simulated

respectively. Indoor thermal comfort and indoor air quality of different load sharing-rates are also analyzed and evaluated. And the appropriate range of cooling load sharing-rates are given from the view of both occupants thermal comfort and occupants health. When ωc (the sensible heat load sharing rate of the radiant terminal device) <0.7

the human thermal index in work region can be controlled within the range of thermal comfort standard. From the point of avoiding local discomfort

ωc is suggested to take 04~1. As regard to indoor air quality

for the constant air volume mode

ωc is suggested to take 0.5~0.9 under low and middle load conditions

and ωc is suggested to take 0.35~0.6 under high load conditions. For the variable air volume mode

the smaller the value of ωc is

the better indoor air quality is.