期刊论文

Sensitivity Analysis of Hygrothermal Parameters in a Coupled Heat and Moisture Transfer Model for Walls Subjected to Hot and Humid Climate

中文

建筑科学

1002-8528

2019

35

4

66-69

10.13614/j.cnki.11-1962/tu.2019.04.10

国家自然科学基金项目“夏热冬冷地区整体建筑热湿耦合传递一体化研究”（51708271）；

本校为其他机构

本文将热湿气候地区墙体热湿耦合传递模型中的等温吸放湿曲线斜率、液态水传递系数、水蒸气传递系数、导热系数、比热容作为输入参数,将温度和相对湿度作为输出参数,通过生成Sobol序列对热湿物性参数进行采样,并使用Sobol灵敏度分析法对采样结果进行灵敏度分析,得到热湿物性参数的一阶灵敏度指数和总灵敏度指数,进而分析各热湿物性参数对墙体内温湿度分布的影响程度。结果表明,等温吸放湿曲线斜率和液态水传递系数对墙体内的温湿度分布影响较大,而导热系数和比热容对墙体内的温湿度分布影响较小。因此,在进行墙体热湿耦合模拟时需将等温吸放湿曲线斜率和液态水传递系数视为温度和湿度的函数处理...

In this paper,the slope of the isothermal absorption /desorption curve,the liquid conductivity,vapor permeability,thermal conductivity and specific heat capacity in a hygrothermal model for walls subjected to hot and humid climate are taken as input parameters,while the temperature and relative humidity are used as output parameters. The hyrothermal parameters are sampled by generating Sobol sequence. Sobol sensitivity analysis method is used to analyze the sensitivity of the sampling results,thus obtaining the first-order sensitivity index and total sensitivity index of the five parameters. T...