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根据电路原理和克希荷夫电流定律,提出了一种计算建筑多层墙体的非稳定传热的热流网络模型3R2C仿真模型,该模型可用于模拟和分析多层围护结构非稳定传热。该方法简单,易于编程实现,且比较和验证的结果表明这种模型在计算建筑围护结构非稳定传热时速度快、精度高、结果准确可靠。
Based on the circuit principle and the Kirchhoff current law, a heat flow network model 3R2C simulation model for calculating the non-steady heat transfer of a building multi-layer wall is proposed. The model can be used to simulate and analyze the unsteady heat transfer of a multi-layered building envelope. . The method is simple and easy to program. The result of comparison and verification shows that this model is fast, accurate and accurate in calculating the unsteady heat transfer of building envelope.