Air-conditioning (AC) intermittent operation is extensively employed owing to occupancy regulations and residents' habits. This conditioning operation type significantly affects the indoor air temperature as a result of the on-off cycles of AC, leading to potential high temperature differences between adjacent rooms due to varying operation rules. Based on this, numerical simulations were done to deal with the overall thermal behavior of typical bedrooms under intermittent operation, and the individual contributions from different envelope components were discussed considering four models of AC operation in adjacent rooms. The results demonstrate that optimizing these four envelope components can lower average transient heat flows by 16.6 %–65.03 % with the consideration of the operation model. Among these components, the ceiling exhibited the highest energy efficiency potential with a reduction ratio of up to 42.8 %. Furthermore, the AC operation model in adjacent rooms had a significant impact on cooling load, and optimizing these four envelope components greatly reduced thermal disturbances from neighboring rooms. The fluctuation percentage of daily heat transfer capacities decreased from 33.89%-37.16 % to 20.64%–23.76 %. Specifically, optimizing opaque envelopes resulted in reductions in heat transfer capacities by 32.06 % and 30.48 % respectively, with ceilings contributing most significantly at 15.1 % and 14.2 %.

中文翻译：

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空调间歇运行对住宅不透明围护结构冷负荷的影响

由于居住规定和居民习惯，空调（AC）间歇运行被广泛采用。由于空调的开关循环，这种空调操作类型会显着影响室内空气温度，由于不同的操作规则，导致相邻房间之间可能存在较高的温差。在此基础上，进行了数值模拟，以处理间歇运行下典型卧室的整体热行为，并考虑相邻房间空调运行的四种模型，讨论了不同围护结构组件的单独贡献。结果表明，考虑到运行模型，优化这四个包络组件可以将平均瞬态热流降低 16.6%~65.03%。其中，天花板表现出最高的能源效率潜力，节能率高达 42.8%。此外，相邻房间的空调运行模型对冷却负荷有显着影响，优化这四个围护结构组件大大减少了相邻房间的热干扰。日传热量波动率由33.89%-37.16%下降至20.64%~23.76%。具体来说，优化不透明围护结构导致传热能力分别降低 32.06% 和 30.48%，其中天花板影响最大，分别为 15.1% 和 14.2%。