通过测试一间有一面是相变材料另一面是保温材料的新型动态Trombe墙体的房屋全尺寸模型,对该墙体的热性能进行实验研究。以墙体和房间的空气温度以及通过墙体的热流量和气流速率来评估其性能。结果表明：在相变过程中,温度变化相对平缓;墙体从玻璃获得的热量占其获得总热量的26.2%,且利用其储存的90.1%的热量对房间进行加热;在相变材料放热期间,该墙体可降低室内温度的分层且房间中部的温度至少比室外温度高3.2 ℃。
Abstract
A full-scale model of a room with a new dynamic Trombe wall with phase change material on one side and insulation material on the other was tested to investigate the thermal performance of the wall. The performance is evaluated by measuring the wall and room air temperatures as well as the heat flow and airflow rate through the wall. The results show that the temperature variations become gentle during the phase change process of the PCM, the ratio of the heat obtained through the glazing to the whole heat obtained by the wall is 26.2% and the wall utilizes 90.1% of its stored energy to heat the room. During the discharging period of the PCM, the wall reduces the stratification of the indoor temperature while the temperature in the middle of the room is maintained at least 3.2 ℃ above the outdoor temperature.
关键词
相变材料 /
太阳能 /
保温 /
实验 /
Trombe墙
Key words
phase change materials /
solar energy /
thermal insulation /
experiments /
Trombe wall
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基金
外专千人科研项目（BE044741）; 海河英才计划专项经费（C021900101）
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