讲解下太阳照射对冷库的影响
About the sun's influence on cold storage
太阳辐射热与冷库的建筑外表面积、太阳辐射的强度等因素有关。冷库设计时应选择单位库容量的冷库建筑外表面较小的结构。
Sun radiate to heat and cold storage of building surface area, the intensity of solar radiation and other factors. Refrigerator design should choose the unit structure of database is less cold storage building outside surface.
太阳辐射强度随地区、季节、一天中的时间、天空中的云彩、空气中的水蒸气含量等的不同而不同。冷库壁面吸收的太阳辐射热是由冷库的朝向及表面对太阳的吸收率决定的。
The intensity of solar radiation with the region, season, time of day, the clouds in the sky, the different contents of water vapour in the air. Cold storage wall absorption of the surface of the sun radiate to heat up the front and is composed of cold storage on the absorption rate of decision of the sun.
冷库建筑物的朝向在设计中应综合考虑。冷库壁面太阳热的吸收率主要取决于壁面材料的化学成分、表面光滑状况、表面颜色等^其中表面颜色是影响太阳吸收率的主要因素。
Cold storage of the front of buildings should be considered in the design. Cold storage wall solar heat absorption depends mainly on the chemical composition of wall materials, the condition of the surface is smooth, the surface color ^ surface color is the main factors affecting the solar absorptivity.
冷库表面颜色越浅，反射太阳辐射热的能力越大，对太阳热的吸收率就越小。
Cold storage surface color the more light, the greater the ability of reflecting solar heat, the solar heat absorption.
冷库安装根据以上分析：减少太阳辐射热的方法是采用白色涂料的冷库外壁。因为白色的外表面对日照有很高的反射率，会减少太阳辐射的影响;而且白色表面对长波有很高的辐射率，在晴朗的夜晚由于外表面对天空的长波辐射，使建筑物的温度降低‘降低了冷库的制冷负荷。
Cold storage installation according to the above analysis: reduce sun radiate to heat up the cold storage method is to use white paint walls. Because the appearance of white in the face of rizhao has high reflectivity, can reduce the influence of solar radiation; And white surface for long wave has a high emissivity, in the face of the sky on a clear night due to appearance of long wave radiation, reduce the temperature of the buildings' reduces the cold storage refrigeration load.
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