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Experimental and numerical investigation of thermal comfort in room with displacement ventilation

Bartak, M. and Clarke, J.A. and Denev, J. and Drkal, F. and Lain, M. and Macdonald, I. and Stankov, P. (2001) Experimental and numerical investigation of thermal comfort in room with displacement ventilation. In: CLIMA '01 Conference, 2001-12-01.

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Abstract

The paper presents some of the findings from a broader investigation aimed at determining thermal comfort design conditions for combined chilled ceiling/displacement ventilation environments. Vertical radiant temperature asymmetry was found to have an insignificant effect on the overall thermal comfort of the seated occupants for the typical range of ceiling temperatures that would be encountered in practice in such combination environments. There was a slight trend for the reported sensation of 'freshness' to increase as ceiling temperature was reduced though this requires further study. It is concluded that existing guidance regarding toleration of radiant asymmetry is valid for thermal comfort design of chilled ceiling/displacement ventilation environments.