【摘要】 提出了用辅助变量法分析建筑墙体外表面换热过程及推导墙体外表面换热系数的实验方法.实验和预测检验表明:该方法能够真实反映墙体外表面换热过程.在不同的风速下对南面墙体外表面墙体中心区域进行了大量的户外实验,结果表明当风速在1~7.5m/s之间变化时,南面墙体外表面换热系数在13~26W/m2.K之间波动.更多还原

【Abstract】 This article puts forward the experimental methods to analyze the heat exchange process of outside surface of walls of construction by instrumental variable technique and derive the heat exchange coefficient of outside surface of the wall body.The experiments and tests show that this method can genuinely reflect the heat exchange process of outside wall body.Under different wind speeds,we conducted plenty of outdoor experiments to the central areas of the outside south wall body.The results show that when the wind speed varies among 1⁷.5m/s,the heat exchange coefficient of outside surface of the south wall body changes among 13²6W/m²·K.更多还原