Thermal performance of a multi-loop pump-driven heat pipe as an energy recovery ventilator for buildings
Thermal performance of a multi-loop pump-driven heat pipe as an energy recovery ventilator for buildings
复制标题
多回路泵驱动热管作为建筑能量回收通风机的热性能
DOI：
10.1016/j.applthermaleng.2018.04.104
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发表时间：
2018-06
影响因子：
6.4
通讯作者：
Guoyuan Ma
中科院分区：
文献类型：
--
作者：
Feng Zhou;Wei Duan;Guoyuan Ma
建筑能耗可以从空气对空气能量回收通风器中受益。研制了一种用于建筑排风能量回收的三环泵驱动热管系统。在冬季和夏季条件下，对单回路和三回路系统的热性能进行了实验研究和比较。讨论了回路数和温差分布均匀性的改进。结果表明：随着室内外温差的增大，换热能力和性能系数增大，温度效率的变化与工况有关；三回路系统的能量回收性能优于单回路系统。在室内外温差为7.5 °C的夏季工况下，三回路系统的换热能力、温度效率和性能系数分别提高了3.0%、0.6%和56.7%；在室内外温差为31.9 °C的冬季工况下，三回路系统的换热效率、温度效率和性能系数分别提高了22.4%、22.6%和53.5%。在冬季条件下，随着环数的增加，温差分布的均匀性得到明显改善，而在夏季条件下则不明显。冬季的温差变异系数从17.2%下降到10.2%，夏季的温差变异系数从4.5%下降到3.9%。
Building energy consumption could benefit from air-to-air energy recovery ventilators. A triple-loop pump-driven heat pipe system was developed for energy recovery from exhaust air in buildings. The thermal performances of the single-loop and triple-loop systems were studied and compared experimentally under winter and summer conditions. The improvement of loop number and the uniformity of temperature difference distribution was discussed. Results indicated that heat transfer capacity and coefficient of performance increased with indoor and outdoor temperature difference, and the variation of temperature effectiveness depended on working conditions. The energy recovery performance of the triple-loop system was better than the single-loop system. The heat transfer capacity, temperature effectiveness, and coefficient of performance of the triple-loop system increased by 3.0%, 0.6%, and 56.7% in summer conditions with an indoor and outdoor temperature difference of 7.5 °C, and by 22.4%, 22.6%, and 53.5% in winter conditions with an indoor and outdoor temperature difference of 31.9 °C. The uniformity of temperature difference distribution could be improved clearly with increasing loop number in winter conditions but not obviously in summer conditions. The variation coefficient of temperature difference decreased from 17.2% to 10.2% in winter conditions, and from 4.5% to 3.9% in summer conditions.
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影响因子：
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