冷风侵入对不同送风方式供暖房间热环境的影响  

Effects on Thermal Environment Caused by Cold Air Infiltration under Different Air Supply Modes in Heating Room

作　　者：贾琳[1] 钟珂[1] 叶筱[1] 亢燕铭[1] 

机构地区：[1]东华大学环境科学与工程学院,上海201620

出　　处：《东华大学学报（自然科学版）》2016年第6期894-899,共6页Journal of Donghua University(Natural Science)

基　　金：国家自然科学基金资助项目(51278094);上海市教委科研创新重点资助项目(13ZZ054)

摘　　要：利用数值计算方法分析和比较了碰撞射流通风和混合通风在不同冷风侵入情况时的热风供暖特性.结果表明,在有明显冷风侵入的房间中,碰撞射流通风供暖时室内空气混合程度远大于混合通风.冷风侵入量越大,室外气温越温和,碰撞射流热风供暖的节能率越高.Numerical simulations have been carried out for analyzing and comparing the characteristics on warm air heating systems between impinging jet ventilation and mixing ventilation with different condition of cold air infiltration. The results show that, in the heating room with considerable appearance of cold air infiltration, the extent of mixing air in warm air supplied by impinging jet ventilation system far exceeds that with mixing ventilation. With the higher volume of cold air infiltration and the milder temperature of outdoors, the energy saving rate of warm air heated by impinging jet ventilation will be higher.

关 键 词：碰撞射流通风 混合通风 热风供暖 冷风侵入 节能率 

分 类 号：TU831.3[建筑科学—供热、供燃气、通风及空调工程]