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以安徽省合肥市某蛋鸡养殖场有窗封闭式鸡舍为对象,对其外围护结构的冬季总热阻、夏季总热阻、总衰减度和总延迟时间等指标进行了测算,并对该鸡舍夏季和冬季舍内空气环境质量进行了测定,评价其保温隔热性能。结果表明,在安徽省合肥市及其气候相似地区,鸡舍外围护结构墙体和屋顶的冬季低限热阻分别为0.736m·2K/W和1.226m·2K/W,夏季低限热阻分别为0.182m2·K/W和0.838m2·K/W。采用24cm厚度墙和彩钢瓦屋顶的封闭有窗式鸡舍的冬季保温性能不能达到产蛋鸡的要求,而夏季外围护结构的墙体隔热性能基本可以满足产蛋鸡的需要,屋顶结构达不到隔热要求。夏季和冬季的舍内温度分别为30.06℃和10.85℃,相对湿度超过80%,超过产蛋鸡的适合温度区间,也反映了围护结构不能满足保温隔热的需要。因此,提高外围护结构热阻和减少窗户面积有助于提高有窗封闭式鸡舍保温隔热效果。
Taking a closed window chicken house with a window in a hen farm in Hefei City, Anhui Province as an example, the total winter heat resistance, the total heat resistance in summer, the total attenuation and the total delay time of the surrounding structure were calculated. The air quality of the house was measured in summer and winter, and its thermal insulation performance was evaluated. The results showed that the winter lower limit thermal resistance of the outer wall and the roof of the hen house were 0.736m · 2K / W and 1.226m · 2K / W respectively in Hefei City, Anhui Province and its climatically similar areas. The summer low limit heat Resistance were 0.182m2 · K / W and 0.838m2 · K / W respectively. The winter insulation performance of the closed window-type chicken coop with 24cm thickness wall and color steel tile roof can not meet the requirements of laying hens. However, the wall insulation performance of the summer outer protection structure can basically meet the requirement of laying hens. The roof The structure does not meet the insulation requirements. In summer and winter, the indoor temperature is 30.06 ℃ and 10.85 ℃ respectively, and the relative humidity is more than 80%, which is higher than the suitable temperature range of laying hens. It also reflects that the envelope structure can not meet the needs of thermal insulation. Therefore, improving the thermal resistance of the peripheral envelope and reducing the window area can help to improve the heat insulating effect of the enclosed chicken coop.