Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You and Your Team.

Learn More →

CFD based study of thermal sensation of occupants using thermophysiological model. Part II

CFD based study of thermal sensation of occupants using thermophysiological model. Part II Purpose – The purpose of the paper is to simulate the effect of clothing insulation and activity on the interaction between the human body and the environment. Design/methodology/approach – A thermo-physiological model, integrated into a Fluent CFD software package is applied. The temperature of the skin surface, clothing surface and heat flux (dry and total heat flux) through layers of clothing with different insulation level are numerically investigated in function of the clothing insulation and the different activities performed indoors. Findings – The increase of the clothing insulation leads to increase of both skin and clothing temperature. Higher temperature difference Δ T between the room temperature and skin temperature provokes more dynamic change of the skin temperature and decreases the thermal comfort of the person. The increase of the metabolic rate, however, leads to more uniform skin temperature, regardless the temperature difference Δ T . With the increase of the clothing insulation for a constant metabolic rate the total heat flux remains constant, but the dry heat flux decreases, while the evaporative heat flux increases. Originality/value – The joint influence of clothing insulation and indoor activities on the thermal interaction between the body and the environment is assesses using a thermo-physiological model, integrated in a CFD software package. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal of Clothing Science and Technology Emerald Publishing

CFD based study of thermal sensation of occupants using thermophysiological model. Part II

Loading next page...
 
/lp/emerald-publishing/cfd-based-study-of-thermal-sensation-of-occupants-using-r8ZUaQYya8
Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
0955-6222
DOI
10.1108/IJCST-10-2013-0116
Publisher site
See Article on Publisher Site

Abstract

Purpose – The purpose of the paper is to simulate the effect of clothing insulation and activity on the interaction between the human body and the environment. Design/methodology/approach – A thermo-physiological model, integrated into a Fluent CFD software package is applied. The temperature of the skin surface, clothing surface and heat flux (dry and total heat flux) through layers of clothing with different insulation level are numerically investigated in function of the clothing insulation and the different activities performed indoors. Findings – The increase of the clothing insulation leads to increase of both skin and clothing temperature. Higher temperature difference Δ T between the room temperature and skin temperature provokes more dynamic change of the skin temperature and decreases the thermal comfort of the person. The increase of the metabolic rate, however, leads to more uniform skin temperature, regardless the temperature difference Δ T . With the increase of the clothing insulation for a constant metabolic rate the total heat flux remains constant, but the dry heat flux decreases, while the evaporative heat flux increases. Originality/value – The joint influence of clothing insulation and indoor activities on the thermal interaction between the body and the environment is assesses using a thermo-physiological model, integrated in a CFD software package.

Journal

International Journal of Clothing Science and TechnologyEmerald Publishing

Published: Mar 2, 2015

There are no references for this article.