学术
摘 要:
为提高房间空调器的舒适度，设计一种辐射式空调器。采用辐射板换热器代替传统空调器中的室内贯流风机。以常规的室内空间为模型，应用辐射和自然对流传热理论建立热平衡方程。以20m^2的房间为例，在常规的供热和制冷负荷条件下，对辐射板进行外型尺寸和板面温度的设计计算，得到满足房间冷热负荷要求的辐射式空调器系统。以此为基础，采用计算流体动力学方法对该模型房间采用不同换热形式（辐射板换热器和强迫对流翅片管式换热器）空调器后的室内温度场和速度场进行仿真计算，通过对比采用不同换热形式的计算结果，得出采用辐射式空调器空间的温度和气流速度分布更为均匀，验证了辐射式空调器的优越性。[著者文摘]
文章出处:
《机械工程学报》-2008年44卷2期 -238-243页
栏目信息:
分 类 号:
Design and Numerical Simulation of Radiation Air-conditioning
GAO PAN, ZHAO LI （School of Mechanical Engineering, Tianjin University, Tianjin 300072）
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 m^2 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.[著者文摘]
Key words:
Radiation air-conditioning Design Numerical simulation
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