Transient heat transfer through the enclosures of a room with mixed convection

Qingyan Chen, J. Van Der Kooi

Research output: Journal article publicationConference articleAcademic researchpeer-review

Abstract

The insulation of buildings has been improved since the 1970's in order to reduce heat loss in winter, heat gain in summer and infiltration of outdoor air. As a consequence, the heat extracted from, or supplied to a room for maintaining a comfortable air temperature is smaller. From the view point of energy saving, the air supply has been decreased. Such a reduction of air supply makes the indoor air flow change from forced convection into mixed convection and sometimes generates a non-uniform distribution of air temperature. The temperature in the upper part of the room will then be higher than that in the lower part. Does the indoor air temperature distribution have a large influence in the transient heat transfer through the enclosures of the room and consequently on the energy consumption of the air-conditioning system of the room? In order to estimate the influence, the temperature distribution of indoor air and the transient heat transfer through the enclosures must be predicted simultaneously because they are inter-related.

Original languageEnglish
Pages (from-to)697-706
Number of pages10
JournalProceedings of the International Centre for Heat and Mass Transfer
Publication statusPublished - 1991
Event21st Symposium of the International Center for Heat and Mass Transfer (ICHMT) - Dubrovnik, Yugosl
Duration: 1 Sep 19891 Sep 1989

ASJC Scopus subject areas

  • Engineering(all)

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