Under air-conditioning intermittent operation, interior envelopes become the quasi-exterior ones of a partial room and thereby may cause the specified heat loss. However, it is unknown for the heat transfer capacity rate of interior envelopes in the room heat loss, which is of vital significance on the optimization direction of envelopes. To analyze the cooling load composition formed by non-transparent envelopes, an office building was chosen and inner surface heat flows in the studied room were measured under the different intermittent groups of air-conditioning in the adjacent rooms, and combined with the envelop area and heat flow values, the heat transfer capacity through the different envelops could be gained. The results showed that the air-conditioning operation in the adjacent rooms had a large effect on the heat transfer capacities, and the higher the room area, the more remarkable the air-conditioning operation in the adjacent rooms. The average heat transfer capacity rate of the exterior envelope was 21%–35% for room with two exterior walls and only 7%–10% for room with one exterior wall, which were much lower than those of the interior envelopes. It showed that thermal performance of the interior envelopes should be paid more attention to under air-conditioning intermittent operation.

中文翻译：

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空调间歇运行下普通办公楼不透明围护结构形成的冷负荷组成

在空调间歇运行的情况下，内部围护结构成为部分房间的准外部围护结构，从而可能导致规定的热损失。然而，室内围护结构在室内热损失中的传热容量率是未知的，这对围护结构的优化方向具有重要意义。为分析非透明围护结构形成的冷负荷组成，选择一栋办公楼，测量相邻房间不同间歇空调组下研究房间的内表面热流，并结合围护面积和热流值，可以通过不同的包络获得传热能力。结果表明，相邻房间的空调运行对传热能力有很大影响，房间面积越大，相邻房间的空调运行越显着。两层外墙房间外围护结构的平均传热能力率为21%~35%，单外墙房间仅为7%~10%，远低于内围护结构。表明在空调间歇运行的情况下，应更加关注室内围护结构的热性能。