关键词: 辐射式空调, 设计, 数值模拟

Abstract: A radiation air-conditioning is designed in order to make people feel more comfortable. A radiation board is used to replace the fan in conventional air-conditioning. For a normal indoor room, heat equilibrium equations are obtained with radiation and natural convection. A room of 20 m2 is set as an example, and the size and the surface temperature of the radiation board is designed in order to meet the usual refrigeration and heating load of the room. The computational fluid dynamics method is used to simulate the temperature field and the velocity field in the room with different heat exchanger ways (the radiation board and the fan of conventional air-conditioning). Comparing the calculating results with different heat exchanger ways, it is founded that the temperature and velocity fields are more homogeneous in the room with the radiation air-conditioning, and its superiority is proved.

Key words: Design, Numerical simulation, Radiation air-conditioning