Thermal Short-circuiting of Capillary Plane Radiant Air-conditioning

The thermal short-circuiting exists in water supply and return pipes of S-capillary tube,which impact the real heat transfer performance of capillary tube greatly.The phenomenon should be considered during the designing and constructing.Establish the three-dimensional fluid-solid coupled model of S-capillary,and analyze the impact of capillary structure parameter and water supply condition on the heat transfer efficiency by CFD method.The results show that the heat transfer efficiency can describe the phenomenon of thermal short-circuiting and analyze the uniformity of ceiling surface temperature distribution.