受层式通风风口模式影响的室内温度场试验研究

Experimental study on indoor temperature field under the influence of layer ventilation mode

通过试验研究,对比4种层式通风系统在高度方向的温度分布规律和不同送风温度下各层式通风系统在Z=1.1 m处的温度变化规律,结果表明:当送风温度和送风量分别为20℃和129.6 m^(3)/s时,就人体热舒适的角度而言,单风口侧面布置的效果优于单风口正面布置;双风口相对布置效果优于双风口直角布置;就室内温度场效果来说双风口相对布置最好;送风温度改变时,4种通风系统Z=1.1 m的温度值均随送风温度的增高而明显上升且具有相似的温度场分布规律;双风口相对层式通风系统的室内温度场随温度的变化差异最明显,则双风口相对层式通风系统效果最佳。

Through the experimental study,the temperature distribution law of four kinds of floor ventilation systems in the height direction and the temperature change law of each floor ventilation system at z=1.1 m under different supply air temperature are compared.The results show that when the supply air temperature and supply air volume are 20℃ and 129.6 m^(3)/s respectively,the side layout of single air outlet is better than the front layout of single air outlet in terms of human thermal comfort When the air supply temperature changes,the temperature value of the four ventilation systems z=1.1 m increases obviously with the increase of the air supply temperature and has the similar distribution law of temperature field;while the difference of the indoor temperature field of the two ventilation systems with the change of temperature is the most obvious,the effect of double tuyere ventilation system is the best.