送风温度对多热源置换通风效果影响的研究

Study of the Effects in the Air-intemperatrue to Multi-polluting Heat Sources Displacement Ventilation

针对多污染源置换通风空调小室,进行了气流流动与传热的三维紊流数值模拟。数值分析了送风温度对多污染源置换通风效果(热力分层高度、垂直温度梯度、舒适性)的影响规律,结果表明:为获得良好的多污染源置换通风效果,并体现其节能性,确定出合适的送风温度是非常重要的。

Aiming to the air conditioning room of multi-polluting heat sources, numerical model of three-dismensional steady heat transfer is set up.The effects of air-intemperature on heat lamination height,vertical temperature distribution and comfortibility are simulated numerically. The result shows that it is very important to confirm the air-intemperature for getting better displacement ventilation effect and embodying its characteristic of energy conservation.