Numerical Study On Radiant Panel Cooling And Heating

The radiant floor heating has been widely used all over the world because of lots of advantages compared with conventional heating. Presently, the way of radiant floor heating is growing up in China. Technical codes have appeared in some regions. But the research on radiant ceiling heating and radiant wall heating is still rare. Research on radiant ceiling cooling has been developed in China. Some basic theory isn't sufficient; few buildings are built where the radiant floor cooling systems could be applied.Thermal environment of heating room is the fundamental of system design and operation. Research of radiant panel heatingand cooling room model plays an important role in understanding the characteristic of radiant panel heatinganf cooling room. This thesis developed physics model of radiant panel heating and cooling room based on previous studies. Computational fluid dynamics software FLUENT was applied to study the thermal environment of radiant panel heating and cooling room. The distributions of temperature and velocity of rooms of radiant floor heating and cooling, radiant ceiling heatingand cooling and radiant wall heating and cooling are gained.Radiant floor heating modes is the most comfortable, energy-efficient heating. The distribution of radiant panel on the floor has an important effect on energy consumption. Radiant ceiling cooling modes is the best. Improving wind speed isn't necessary. The radiation plays an important role.Radiant floor heating, radiator and fan coil heating are compared.The result is radiant floor heating is the most energy-efficient. Radiant ceiling cooling and fan coil cooling are compared. The research shows that radiant ceiling cooling is more energy-efficient than fan coil cooling.The research shows that ceiling radiant heating and cooling can cool in summer and heat in winter through a set of system.