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Analysis of Air Flow Rate Distribution for the Bathroom Exhaust System in High-rise Buildings Using T-method  

문종선 (한양대학교 대학원 기계공학과)
강석윤 (한양대학교 대학원 기계공학과)
이승철 (동해대학교 자동차공학과)
유호선 (숭실대학교 기계공학과)
이재헌 (한양대학교 기계공학부)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.16, no.3, 2004 , pp. 265-272 More about this Journal
Abstract
Based on the T-method, a new scheme for predicting air flow rate distribution in a bathroom exhaust system is developed. Introduction of individual duct route enables us to disintegrate a complicated multi-fan ductwork into a set of simultaneous single-fan subsystems. The scheme is validated via the analysis of a well-posed test problem, showing physical consistency. In order to demonstrate the utility and capability of our method, the bathroom ventilation system in a 20-story residential building is selected as an example. Under the typical design condition, the air flow rate of each exhaust fan at the balancing point is successfully predicted, and such information can lead to an engineering estimation for the overall system performance. While some deficiencies in ventilation are found at bathrooms at lower floors with 6mmAq-rated exhaust fans, they disappear over the whole building by using fans of enhanced static pressures, 7 and 8mmAq. Finally the present scheme seems to be useful for practical design of multi-branched, multi-fan ventilation systems.
Keywords
Exhaust system; Flow rate distribution; Ventilation; Duct; T-method; bathroom;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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[ Tasl,R.J.;Behls,H.F.;Mangel,R. ] / ASHRAE Transactions
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[ Ham,J.S. ] / Korean Journal of Architectural Institute of Korea   과학기술학회마을
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[ Lee,S.C.;Moon,J.S.;Lee,J.H. ] / Korean Journal of Architectural Institute of Korea   과학기술학회마을