Transactions of the Society of Heating,Air-conditioning and Sanitary Engineers of Japan
Online ISSN : 2424-0486
Print ISSN : 0385-275X
ISSN-L : 0385-275X
Technical Paper
Experimental Study on Indoor Environmental Quality for Four-bed Ward with Ceiling Induction Diffusers under Heating Condition
Ying LIToshio YAMANAKAHisashi KOTANIKazunobu SAGARAYoshihisa MOMOIMari KURANAGA
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2018 Volume 43 Issue 256 Pages 19-28

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Abstract

This study investigates how some related factors of the air-conditioning system with ceiling induction diffusers effect on the indoor environment in the ward during the heating period. A series of experiments (10 cases) which are involved in two influential factors including the positions of exhausts and the conditions of curtains are carried out in a full scaled model room. The investigation aims to verify the trend and the degree of the influence of the relevant factors on the distributions of indoor temperature, contaminant concentration and the local mean age of air. The results show that the positions of the exhaust ducts play an important role on the normalized concentration distributions and have strong influence on the local mean age of air. Moreover, the barrier function of curtains to the contaminants is verified. There is a minor influence of curtains on the local mean age of air, though it can change the directions of the air flow.

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© 2018, The Society of Heating, Air-Conditioning and Sanitary Engineers of Japan
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