THE MOISTURE PERFORMANCE OF FRAMED STRUCTURES - A MATHEMATICAL-MODEL

被引：22

作者：

CUNNINGHAM, MJ

机构：

[1] BRANZ, Porirua, NZ, BRANZ, Porirua, NZ

来源：

BUILDING AND ENVIRONMENT | 1988年 / 23卷 / 02期

关键词：

MASS TRANSFER - MOISTURE DETERMINATION - Mathematical Models - ROOFS;

D O I：

10.1016/0360-1323(88)90026-1

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A mathematical model is developed for the moisture performance of a framed structure (e. g. , a flat roof or a wall), containing a hygroscopic framing material and a cavity filled with air or insulation. A formula is developed that connects the enclosed and unenclosed drying time constants for the framing material. The enclosed drying time constant alone describes the longer term moisture behavior of the structure (much greater than one day) under any driving forces given the linearity assumptions used. The model allows for anisotropic framing materials with initial moisture contents above or below fibre saturation.

引用

页码：123 / 135

页数：13