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机构地区:[1]安徽省农业科学院畜牧兽医研究所,安徽合肥230031 [2]安徽农业大学动物科技学院,安徽合肥230036
出 处:《中国家禽》2012年第16期15-19,共5页China Poultry
基 金:国家蛋鸡产业技术体系建设专项(CARS-41-K19)
摘 要: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。The winter total thermal resistance,summer total thermal resistance,total decrement degree and total lag time of building structure were calculated and the house's micro climates in summer and winter were measured and analyzed in order to evaluate the heat insulate capability of enclosed layer house with windows in Hefei. The results showed that winter total theimal resistance of wall and roof were 0.736 and 1.226 m2" K/W, summer total resistance ofwall and roof were 0.182 and 0.838 m2-K/W,respectively in Anhui province and similar zones. The insulate capability of enclosed layer house with windows,24 cm wall and color steel roofing couldn't meet the demand of layers in winter, but the wall's insulate capability eould meet the demand in summer. The house temperatures were 30.06 ~C and 10.85 ~C,and relative humidity exceeded 80% in summer and winter, respectively,which indicated the micro climates could poorly meet the demand of layer produetion and insulate capability of periphery structure couldn't. Increasing the thermal resistance of periphery structure and reducing the area of windows could enhance the thermal insulation capability of enclosed layer house with windows.
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