MODELING OF INDOOR AIR HUMIDITY - THE DYNAMIC BEHAVIOR WITHIN AN ENCLOSURE

被引：29

作者：

ELDIASTY, R

FAZIO, P

BUDAIWI, I

机构：

[1] School of Architecture, Arizona State University, Tempe

[2] Centre for Building Studies, Concordia University, Montreal

来源：

ENERGY AND BUILDINGS | 1992年 / 19卷 / 01期

基金：

加拿大自然科学与工程研究理事会;

关键词：

24;

D O I：

10.1016/0378-7788(92)90036-G

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Indoor air humidity behaviour within an enclosure has been mathematically modelled. A linear differential equation is used to describe the response of indoor air humidity to different moisture transport processes within the space. The modelled processes include: moisture absorption/desorption, surface condensation, air movement across enclosure boundaries, indoor evaporation, and indoor moisture generation. By using a discrete time step, nonlinear processes, such as surface condensation, can be assumed linear within the time interval. The differential equation is solved as part of a comprehensive numerical formulation through which the behaviour of moisture transport process and its contribution to indoor humidity dynamics are modelled. A theoretical study of indoor air humidity response to different moisture transport processes has revealed the importance of the involved processes in determining indoor air humidity behaviour. The relative influence of a particular process depends on its time constant, its interaction with other processes, and the continuity of the process. In addition, the impact of a given moisture transport process will also depend on the building physical and functional characteristics, as well as the prevailing outdoor environmental conditions.

引用

页码：61 / 73

页数：13

共 24 条

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