技术中心

【英文篇名】 Experimental study of displacement ventilation system with two heat sources 【作者中文名】 倪波; 【作者英文名】 By Ni BoDonghua University; China; 【作者单位】 东华大学; 【文献出处】 暖通空调, Hv 温跃层; 温度梯度; 【英文关键词】 displacement ventilation; thermocline; temperature gradient; 【摘要】 通过实验手段细致分析研究了置换通风系统中双热源的情况 ,结果表明 :在相同的总热气流送入量下 ,单热源和双热源形成的温度场有很大的不同 ,辅热源的存在降低了温跃层的高度和上部区域的温度 ,分散的热源对置换通风系统不利。讨论了辅热源气流温度、辅热源气流流量、辅热源焓值等影响因素。 【英文摘要】 Through a series of experiments investigates the case with two heat sources,finds that the temperature field with one heat source differs significantly from that with two while the total flow rate remains unchanged, that the height of thermocline and the temperature in the upper zone are lowered when the added heat source presents, and that dispersed heat sources are undesirable to displacement ventilation. Discusses the effects of the factors including temperature, flow rate and enthalpy of the second heat... 【基金】 上海市科委启明星计划资助课题 (批号 :0 0QG1 40 39)