Abstract: Pentane is used as a refrigerant in the evaporative radiation air-conditioning system. With the constant opening of throttle valve，an experiment was conducted by changing the interior temperature. Measurements obtained include the cooling capacity of the evaporative capillary imbibitions conditioning system，the radiant panel face temperature，the temperature distribution in vertical direction of the simulated space under different cooling capacity. The results show that，under the research condition，heat transfer of the evaporative wick radiation plate increases from 44 W/m² to 91 W/m². Even under different cooling capacity，the temperature distribution of the board is uniform，the minimum temperature is above 24℃，which can guarantee the system running without condensation. The temperature in the simulated space values are in the range of 24.5—27.5 ℃，which can meet the temperature requirements of human comfort. Thus，compared with traditional radiation air-conditioning unit，the evaporative capillary imbibitions core radiant panel air-condition system possesses higher cooling capacity and lower risk of condensation. The work in this paper can provide a theoretical basis for its further application.

Key words: capillary imbibition core, radiant air-conditioning, cooling capacity, pentane, capillary imbibition core, radiant air-conditioning, cooling capacity, pentane

摘要： 在实验的基础上建立了一种采用戊烷为制冷工质的毛细吸液芯蒸发式辐射空调系统。在节流阀开度不变时，调节模拟空间内的温度，实验测试了毛细吸液芯蒸发式空调系统辐射板的制冷量、板面温度以及不同制冷量下的模拟空间内竖直方向的温度分布。实验结果表明：在此条件下，毛细吸液芯蒸发式辐射换热板的制冷量从44 W/m²增加至91 W/m²；不同制冷量下的板面温度分布比较均匀，最低温度都不低于24 ℃，系统运行过程中不会出现结露现象；模拟空间温度分布在24.5～27.5 ℃之间，在满足人体舒适度要求的温度范围内。与传统的辐射空调相比，制冷量大，结露的危险较低，为辐射空调系统的进一步推广应用提供了一定的理论基础。

关键词: 毛细吸液芯, 辐射空调, 制冷量, 戊烷, 毛细吸液芯, 辐射空调, 制冷量, 戊烷