Paper 2: Volume 4 No.1 June 2005 Edition
Building Design utilizing Natural
Ventilation based on CFD and Ventilation Network Analysis and its
Performance Evaluation by Field Measurement
Kyosuke Hiyama1, Shinsuke Kato2,
Takeo Takahashi2, Hong Huang2, Shin Kobayashi3
and Shizuo Iwase4
1 Graduate School of Engineering, Univ. of
Tokyo, Tokyo, Japan
2 Institute of Industrial Science, Univ. of Tokyo, Tokyo, Japan
3 MHS Planners, Architects & Engineers Co., Ltd, Tokyo,
Japan
4 Tateyama Aluminium Co., Ltd, Chiba, Japan
Abstract
The innovation of computational simulations at the design
stage can provide a more accurate prediction of building characteristics.
Presenting information about practical cases is essential to validate the
usefulness of computed predictions. This paper focuses on the coupling of
computational fluid dynamics (CFD) and flow network model simulations, and
their validation by means of field measurements. An energy-saving building
was designed and built. In the building, natural ventilation is utilized
incorporating unique and challenging concepts. The ventilation route was
intended to run from the outer façades to the courtyard façades
regardless of which direction the wind was blowing. In advance, the
performance of this natural ventilation was examined using CFD and flow
network model analysis. As a result, the wind-pressure coefficient
distribution for the whole building and the ventilation characteristics
were obtained. After construction of the building, field measurements were
performed to investigate the actual ventilation properties. It was
verified that the aim of the building design was sufficiently realized.
Key words: CFD, network model analysis, tracer gas
decay, natural ventilation, hospital, courtyard.
References
Baturin WW: (1959)
“Luftungsanlagen fur Industriebauten”.
Hitchin ER and Wilson CB:
(1967) “A review of experimental techniques for the investigation of
natural ventilation in Buildings”. Building Science, 2, pp
59-82.
JIS: Japanese Industrial
Standards Committee. (1974) “Method for Measuring Amount of Room
Ventilation; Carbon Dioxide Method”.
Koinakis CJ: (2004)
“Combined thermal and natural ventilation modeling for long-term energy
assessment: validation with experimental measurements”. Energy and
Buildings, 37, pp311-323.
Liddament MW: (1988)
“The calculation of wind effect on ventilation”. ASHRAE
Transactions, 94, (2), pp1645-60.
Sherman MH and Grimsrud
DT: (1980) “Infiltration-pressurization correlation: Simplified physical
modeling”. ASHRAE Transactions, 86, (2), pp778.
Yoshino H, Liu J, Lee J,
and Wada J: (2003) “Study on the performance evaluation of hybrid
ventilation system for a detached house Part 1”, Journal of
Environmental Engineering AIJ, (566), pp57-64.
Zhai ZJ and Chen QY:
(2004) “Performance of coupled building energy and CFD simulation”.
Energy and Building, 37, pp333-344.
|
IJV Volume 4 No 1
Contents
Paper
1: Operating Rooms
Paper
2: Field Measurement
Paper
3: Flow Reversal
Paper
4: Thermal Comfort
Paper
5: Urban Buildings
Paper
6: Schools Acoustics
Paper
7: Field Study
Paper
8: Case Study
|
