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Simulation of whole building coupled hygrothermal-airflow transfer in different climates

机译:不同气候条件下整栋建筑的湿热气流耦合模拟

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摘要

The coupled heat, air and moisture transfer between building envelopes and indoor air is complicated, and has a significant influence on the indoor environment and the energy performance of buildings. In the paper, a model for predicting coupled multi-zone hygrothermal-airflow transfer is presented. Both heat and moisture transfer in the building envelope and multi-zone indoor airflow are simultaneously considered; their interactions are modeled. The coupled system model is implemented into Matlab-Simulink, and is validated by using a series of testing tools and experiments. The new program is applied to investigate the moisture transfer effect on indoor air humidity and building energy consumption in different climates (hot-humid, temperate and hot-dry climates). The results show that not accounting for hygrothermal effects in modeling will result in overestima-tion of energy costs for hot and humid climate situations and possible over sizing of plant leading to inefficient operation.
机译:建筑围护结构与室内空气之间的热,空气和湿气耦合耦合非常复杂,并且对室内环境和建筑物的能源性能产生重大影响。本文提出了一种预测多区域湿热气流耦合的模型。同时考虑建筑物围护结构中的热量和水分传递以及室内多区域气流;他们的相互作用被建模。耦合的系统模型已在Matlab-Simulink中实现,并通过使用一系列测试工具和实验进行了验证。该新程序用于研究水分在不同气候(炎热潮湿,温带和炎热干燥气候)下对室内空气湿度和建筑能耗的转移影响。结果表明,在建模中不考虑湿热效应将导致高估湿热气候条件下的能源成本,并可能使工厂规模过大,从而导致运营效率低下。

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