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本文通过实验研究和数值模拟相结合的手段,研究了辐射供冷系统启动阶段辐射板表面温度变化及系统稳定阶段人体散湿的强度和人员散湿的位置对结露特性的影响,结果表明:在系统启动阶段单独运行辐射供冷系统6 min后就会发生结露现象,所以在系统启动阶段要及时采取有效的预除湿措施,在此过程中,辐射板表面温度的降低比人体散湿强度的变化对结露的时间的影响更显著;在系统稳定阶段,每增加一个成年男子轻度劳动时的散湿量,结露提前12 min左右发生,人体所在位置的辐射板比其他位置处辐射板先发生结露,在防止结露时,应重点监测人体上方区域的辐射板的表面温度。
In this paper, by means of a combination of experimental research and numerical simulation, the influence of the temperature of the radiant panel surface during the start-up phase of the radiant cooling system, During the start-up phase of the system, condensation will occur after 6 minutes of operation of the radiant cooling system alone. Therefore, effective pre-dehumidification measures should be taken during the start-up phase of the system. During this process, the surface temperature of the radiant panel decreases more than the body wet strength The change of dew condensation time is more significant. In the system stabilization phase, the dew condensation takes place about 12 min every time an additional adult man is working lightly, and the radiation plate at the human body is radiated more than other positions The first occurrence of condensation board, in preventing condensation, should focus on monitoring the human body above the surface area of the radiation plate surface temperature.