Operating optimization for improved energy consumption of a TAC system affected by nighttime thermal loads of building envelopes
Operating optimization for improved energy consumption of a TAC system affected by nighttime thermal loads of building envelopes
复制标题
优化运行以改善受建筑围护结构夜间热负荷影响的 TAC 系统的能耗
DOI：
10.1016/j.energy.2017.04.106
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发表时间：
2017-08
期刊：
影响因子：
9
通讯作者：
Shiming Deng
中科院分区：
文献类型：
--
作者：
Ning Mao;Dongmei Pan;Mengjie Song;Zhao Li;Yingjie Xu;Shiming Deng
任务/环境空气调节（TAC）系统是一种节能技术，可以有效地控制睡眠环境的热舒适水平。在以往的研究中，已经证明了TAC系统在睡眠环境中具有更好的节能性能。但应注意的是，建筑围护结构热负荷通过围护结构传热，影响室内热环境和空调系统的运行。室内热环境的变化将直接影响空调系统的性能，尤其是运行参数的设置。因此，本文对考虑围护结构热负荷影响的空调系统运行进行了优化研究。首先，采用完全析因设计方法构造仿真实例矩阵。其次，利用建筑运行参数和围护结构热负荷，建立了建筑能耗和热舒适模型。再次，通过舒适面和舒适线的计算，确定了能耗最低的最佳运行参数。最后计算了最佳工况下的能耗。结果表明，空调系统在最佳运行状态下，每晚可节电1.4 ~ 1.7kWh。
Task/ambient air conditioning (TAC) system is reported to be an energy efficient technology with available methods to control thermal comfortable level for sleeping environments. Better performance in energy saving for TAC systems in sleeping environment has been demonstrated in previous studies. However, it should be noticed that the building envelope thermal load affects the indoor thermal environment and operation of the air conditioning system due to the heat transfer through the envelope. The variation of indoor thermal environment will directly affect the performance of the TAC system, especially the set of operation parameters. Therefore, an optimization study on the TAC system operation considering the effects of envelope thermal load was carried out in this paper. Firstly, a full factorial design method was used to construct the simulation case matrix. Secondly, the models of the energy consumption and thermal comfort were established using operating parameters and envelope thermal load. Thirdly, comfort surface and comfort lines were obtained to calculate the optimum operating parameters at which the energy consumption was at the lowest. Finally, the energy consumption at the optimum status was calculated. The results show that the TAC system at the optimum status can save 1.4 to 1.7 kWh each night.
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影响因子：
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影响因子：
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