Numerical optimisation of thermal comfort improvement for indoor environment with occupants and furniture

Horikiri, Kana; Yao, Yufeng; Yao, Jun

Abstract

© 2014 Elsevier B.V. All rights reserved. Indoor thermal environment of a 3-D ventilated room was studied by computational fluid dynamics to understand correlations between heat generation, ventilation velocity and thermal sensation indices. The existence of a thermal occupant was found to produce thermal plume approx 15% stronger in magnitude than that from an unoccupied room. With second thermal occupant, there has further temperature increase of maximum 6.5%, equivalent to an increase of PPD value by 8.6%, for which occupants would normally feel uncomfortable. Thus, an increased flow ventilation rate (>0.7 m/s) would be required, in order to keep the same thermal comfort level of the room.

• Journal Article Type: Article
• Acceptance Date: Dec 7, 2014
• Publication Date: Feb 1, 2015
• Publicly Available Date: Jun 6, 2019
• Journal: Energy and Buildings
• Print ISSN: 0378-7788
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 88
• Pages: 303-315
• DOI: https://doi.org/10.1016/j.enbuild.2014.12.015
• Keywords: computational fluid dynamics, indoor thermal comfort, PMV-PPD, ventilation velocity, heat generation
• Public URL: https://uwe-repository.worktribe.com/output/838754
• Publisher URL: http://dx.doi.org/10.1016/j.enbuild.2014.12.015