不同埋管管径和供回水温度对顶棚辐射供冷能力的影响
Influence of tube diameter and water temperature on radiant ceiling cooling capacity
摘要：
搭建了De16和De20埋管混凝土顶板试验台，对不同供回水温度时顶棚辐射空调夏季供冷能力作了理论分析和实验测试。结果表明，夏季供冷时，De16埋管顶棚温度比De20埋管顶棚高0.1 ℃左右，顶棚供冷量差值变化较小，二者的供冷量均大约从39 W变化到25 W，相差约40%。
关键词：埋管管径,供回水温度,顶棚辐射供冷,供冷能力,理论分析,实验测试
Abstract：
Establishes an experimental platform for concrete roofs with De16 and De20 buried tubes, and theoretically analyses and experimentally tests the cooling capacity at different supply/return water temperatures in summer. The results show that the ceiling temperature for De16 is higher than that of De20 by about 0.1 ℃, the cooling capacity for both tube diameters varies from 39 W to 25 W, and the difference is about 40%.
Keywords:buried tube diameter, ceiling radiant cooling, cooling capacity, theoretical analysis, experimental test