送风+辐射组合末端供暖动态特性研究Study on Heating Dynamical Characteristics of Combined Air Supply and Radiation Terminal
袁旭东,贾磊,宋有强
YUAN Xu-dong,JIA Lei,SONG You-qiang
摘要(Abstract):
利用CFD动态仿真技术,以风机盘管和辐射地板的空调末端组合为研究对象,在供暖工况下,分析了末端运行参数对室内达到舒适性温度的所需时间、室内温度和风速分布的影响规律。研究结果表明:随着送风风速或送风温度增加,所需时间先大幅降低,之后逐渐变小并趋于稳定,与此同时,所需时间受地板表面温度的影响越来越小;提高送风风速后室内温度增加有限却易造成吹风感区域增加和舒适性恶化;相对增加地板表面温度,增加送风温度后室内温度提升更多,且室内高度方向的温度均匀度更好,因此室内温度受送风温度的影响更大。
By using CFD dynamical simulation technology and taking the combination of fan coil and floor radiation terminal as the research object,the influence rules of operating parameters on terminals on the time required for the room to reach the comfortable temperature,distribution of temperature and air velocity in the room were analyzed under the heating condition.The results show that with the increase of supply air velocity or temperature,the required time first significantly decreased and then gradually decreased and tended to become stable,at the same time,the effect of floor surface temperature on the required time became smaller and smaller;the indoor temperature was increased somewhat by increasing supply air velocity,but this is easy to cause strong draft feeling and comfort deterioration;whereas by increasing floor surface temperature,indoor temperature was increased more and vertical indoor temperature uniformity was better after increasing supply air temperature,therefore,the influence of supply air temperature on indoor temperature was bigger.
关键词(KeyWords):
送风辐射组合末端;CFD动态仿真;供暖;舒适性
combined air supply and radiation terminal;CFD dynamical simulation;heating;comfort
基金项目(Foundation): 合肥通用机械研究院有限公司青年科技基金项目(2016010476)
作者(Author):
袁旭东,贾磊,宋有强
YUAN Xu-dong,JIA Lei,SONG You-qiang
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