【摘要】 提出了用遗传算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。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 0 .95～ 7.4 5m s之间变化时 ,南面墙体外表面换热系数在 12 .9～ 2 4 .5W m2 ·K之间波动。更多还原

【Abstract】 Present a new method,based on genetic algorithm,to analyze wall surface heat transfer prooess and compute the heat transfer coefficient of exterior wall surface. Experimental and predictive data verifies that the approach is effective to describe the process of heat transfer.Outdoor tests were camied out under a wide rang of conditions and the heat transfer coefficient was correlated with wind speed.The results obtained indicate that the heat transfer coefficient of wall surface vanies from 12.9 to 24.5 W/m 2·K with wind speed ranging from 0.95 to 7.45m/s.更多还原