新回风混合贴附射流对辐射吊顶空调防结露研究

Research on Anti Condensation of Radiant Ceiling Air Conditioning with Fresh Return Air Wall-Attached-Jet

通过对辐射空调与独立新风复合系统进行实验,研究纯新风贴附射流工况和新回风混合贴附射流工况对系统贴附层的影响,并进一步研究新回风混合贴附射流对辐射吊顶空调系统防结露效果。对比不同工况下辐射板贴附层空气参数,得出新回风混合工况能够增加贴附射流影响范围,并降低贴附层露点温度,且相比纯新风工况,降低幅度最高达到2.25℃。证明了引入回风对降低幅射吊顶空调贴附层露点温度的可行性。

By conducting experiments on radiation air conditioning and independent fresh air composite systems,this study investigates the effects of pure fresh air wall-attached-jet conditions and mixed fresh air wall-attached-jet conditions on the system attachment layer,and further investigates the anti condensation effect of mixed fresh air wallattached-jet on radiation ceiling air conditioning systems.Comparing the air parameters of the radiation plate attachment layer under different operating conditions,it is found that the new return air mixed operating condition can increase the influence range of the wall-attached-jet and reduce the dew point temperature of the attachment layer.Compared with the pure fresh air operating condition,the maximum reduction is 2.25℃.Proved the feasibility of introducing indoor return air to reduce the dew point temperature of the attached layer in radiation ceiling air conditioning.