IMPACT OF COUPLED HEAT AND MOISTURE TRANSFER EFFECTS ON BUILDINGS ENERGY CONSUPTION

Main Article Content

Mohammed Yacine FERROUKHI Rafik BELARBI Karim LIMAM Walter BOSSCHAERTS Walter BOSSCHAERTS

Abstract

: Coupled heat, air, and moisture transfers through building envelope  have an important effect on prediction of building energy requirements. Several works were conducted in order to integrate hygrothermal transfers in dynamic buildings simulations codes. However, the incorporation of multidirectional hygrothermal transfer analysis in the envelope into building simulation tools is rarely considered. In this work, coupled heat, air and moisture transfer model in multilayer walls (HAM) was established. Thereafter, the HAM model is coupled dynamically to a building behavior code (BES).The coupling concerns a co- simulation between COMSOL Multiphysics and TRNSYS softwares. Afterward, the HAM-BES co-simulation accuracy was verified. Then, HAM-BES co-simulation platform was applied to a case study with various types of climates (Temperate, hot and humid, cold and humid). Three simulations cases were carried out. The first simulation case consists of the TRNSYS model without HAM transfer model. The second simulation case, 1D HAM model for the envelope was integrated in  TRNSYS code. For the third one, 1D HAM model for the wall and 2D HAM model for thermal bridges were coupled to the thermal building model of TRNSYS. Analysis of the results confirms the significant impact of 2D envelope hydgrothermal transfers on the indoor thermal and moisture behavior of building as well as on the energy building assessment. These conclusions are shown for different studied climates.

Article Details

How to Cite
FERROUKHI, Mohammed Yacine et al. IMPACT OF COUPLED HEAT AND MOISTURE TRANSFER EFFECTS ON BUILDINGS ENERGY CONSUPTION. Thermal Science, [S.l.], mar. 2017. ISSN 2334-7163. Available at: <http://thermal-science.tech/journal/index.php/thsci/article/view/2142>. Date accessed: 18 oct. 2017. doi: https://doi.org/10.2298/TSCI150608215F.
Section
Articles
Received 2017-03-02
Accepted 2017-03-13
Published 2017-03-13

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