A Study on the Improvement of ADPI and Ventilation Effectiveness in a Small Theater
In the air distribution design of a small theater, either a downward or an upward displacement ventilation is applied generally. The cool air is supplied from openings distributed over the ceiling and extracted beneath the seats for the downward flow and supplied from beneath the seats and extracted...
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Published in | International journal of air-conditioning and refrigeration Vol. 24; no. 3; pp. 1650019 - 10 |
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Main Author | |
Format | Journal Article |
Language | English |
Published |
World Scientific Publishing Company
01.09.2016
대한설비공학회 |
Subjects | |
Online Access | Get full text |
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Summary: | In the air distribution design of a small theater, either a downward or an upward displacement ventilation is applied generally. The cool air is supplied from openings distributed over the ceiling and extracted beneath the seats for the downward flow and supplied from beneath the seats and extracted from the ceiling for the upward flow system. By the change of air exchange rate (ACH) produced by two divergent ventilation systems inside theater, thermal comfort and ventilation effectiveness around the seats show a different phenomenon. Thereby, it can be seen that the selection of the ventilation system is a significant factor in energy saving. CFD calculations for this study were performed to investigate the effects of various parameters (ADPI and ACE) of air distribution system applied in order to save the cooling energy. This paper focuses mainly on the effect of the varied volume flow rate depending on the ventilation system. The ventilation performances of the downward displacement system are compared quantitatively with the upward displacement system
using the concept of the LMA of fresh air. |
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Bibliography: | http://www.worldscientific.com/doi/abs/10.1142/S201013251650019X G704-001938.2016.24.3.009 |
ISSN: | 2010-1325 2010-1333 |
DOI: | 10.1142/S201013251650019X |