Indoor climate in rooms with cooled ceiling systems

Jianlei Niu; J. v d Kooi

doi:10.1016/0360-1323(94)90024-8

Indoor climate in rooms with cooled ceiling systems

Jianlei Niu, J. v d Kooi

Research output: Journal article publication › Journal article › Academic research › peer-review

52 Citations (Scopus)

Abstract

By using thermal dynamics simulation and CFD (computational fluid dynamics) techniques, thermal comfort and indoor contaminant distributions are analysed for a room with: (1) a conventional displacement ventilation system, (2) a cooled ceiling with displacement ventilation system, and (3) a cooled ceiling with ceiling air supply system. The numerical simulation results indicate that a cooled ceiling reduces the vertical temperature gradients while still maintaining the ventilation effectiveness much higher than one at a load of nearly 50 W/m2floor area. By comparison, maximum cooling capacities of the three systems are discussed, specifically in respect to their thermal comfort performances.

Original language	English
Pages (from-to)	283-290
Number of pages	8
Journal	Building and Environment
Volume	29
Issue number	3
DOIs	https://doi.org/10.1016/0360-1323(94)90024-8
Publication status	Published - 1 Jan 1994
Externally published	Yes

ASJC Scopus subject areas

Civil and Structural Engineering
Environmental Engineering
Geography, Planning and Development
Engineering(all)

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10.1016/0360-1323(94)90024-8

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AB - By using thermal dynamics simulation and CFD (computational fluid dynamics) techniques, thermal comfort and indoor contaminant distributions are analysed for a room with: (1) a conventional displacement ventilation system, (2) a cooled ceiling with displacement ventilation system, and (3) a cooled ceiling with ceiling air supply system. The numerical simulation results indicate that a cooled ceiling reduces the vertical temperature gradients while still maintaining the ventilation effectiveness much higher than one at a load of nearly 50 W/m2floor area. By comparison, maximum cooling capacities of the three systems are discussed, specifically in respect to their thermal comfort performances.

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Indoor climate in rooms with cooled ceiling systems

Abstract

ASJC Scopus subject areas

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