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Influence of air humidity on the efficiency of flat air collector
Author(s): 
Pages: 5-8
Year: Issue:  1
Journal: Renewable Energy Resources

Keyword:  湿空气 热物性参数 平板空气集热器 顶部损失系数 效率;
Abstract: 对不同相对湿度下的湿空气密度、定压比热容、动力粘度和导热系数等热物性参数进行了计算。在给定的平板空气集热器模型下计算得出,工作介质为相对湿度50%的湿空气比工作介质为干空气的集热器效率高12.4%。文章研究分析了太阳辐射量、空气通道高度、入口空气流速及温度对平板空气集热器顶部损失系数和效率的影响,研究结果显示,它们对介质为干空气及介质为湿空气的集热器影响趋势一致。
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