Paper 1
Measurement of Ventilation Airflow Rates of 39 Houses
by Three Different Methods
Hiroshi Yoshino1,
Kuniaki Mihara2, Rie Takaki1,
Teruaki Mitamura3, Kazukiyo Kumagai4,
Miyuki Noguchi5,
Haruki Osawa6 and
Yukio Yanagisawa5
1
Course of Sustainable Architecture and Building Science, Department of
Architecture and Building Science, Graduate School of Engineering, Tohoku
University, Japan,
2 Kajima Technical Research Institute, Kajima Corporation, Japan
3 Faculty of Engineering, Ashikaga Institute of Technology, Japan
4 Research and Education Center of Carbon Resources, Kyushu University,
Japan
5 Graduate School of Frontier Sciences, University of Tokyo, Japan
6 Department of Healthy Building and Housing, National Institute of
Public Health, Japan
Abstract
This paper reports
on the measurement results of ventilation rates in existing occupied houses in the northern region of Japan. A total of 61
measurements were made over a period of 4 years on 39 houses. Some houses were
measured once a year over the four years investigation period.
The ventilation systems equipped in some of the
investigated houses were improved during the course of this investigation
period. The effect of the
improvement on ventilation airflow volume was reported. The ventilation
rates were measured by three different methods, namely constant
concentration method, measurement of airflow rate at inlets/outlets and
passive homogeneous emission method. Through this investigation, the
measurement results indicated that the ventilation rate was
insufficient in many houses and some of the ventilation systems were not
operated properly. In addition, the amount of air leakage in the house
envelope and the amount of air change due to occupant behaviour were also
determined.
Key words: measurement
of ventilation rate; residential buildings; constant concentration method;
passive homogeneous emission method, exhaust and inlet airflow
measurements.
References
Grimsrud
DT, Sherman MH, Janssen JE, Pearman AN and Harrje DT: (1980) “An
intercomparison of tracer gases used for air infiltration measurements”,
ASHRAE Transactions, 86, pp257-267.
Heidt
FD, Rabenstein R and Schepers G: (1991) “Performance and comparison of
tracer gas methods for measuring airflows in two-zone buildings”, ASHRAE
Transactions, 97, pp1078-1086.
Hans
S and Anita E: (1991) “A new passive tracer gas technique for
ventilation measurements”, Proceeding of 12th AIVC
Conference, 3, pp1-16.
Hans
S and CarlAxel B: (1994a) “Measurement of ventilation and air
distribution, using the homogeneous emission technique - A validation”, Proceeding
of the 3rd International Conference on Healthy Buildings 94,
2, pp539-544.
Hans
S, CarlAxel B, Johnny K: (1994b) “Measuring ventilation rates in the
Swedish housing stock”, Building and Environment, 29,
pp373-379.
IBEC:
(1999) “Energy conservation standard for next generation residence in
Japan”, Institute for Building Environment and Energy Conservation.
Okuizumi
Y, Kumagai K, Fujii M, Yoshino H, Shinohara N, Mizukoshi A and Yanagisawa
Y: (2003). “Passive parallel VOCs and ventilation rate sampler”, Proceeding
of 7th International Conference on Healthy Buildings 2003,
Singapore, 2, pp475-479.
Sakaguchi
J and Akabayashi S: (2003). “Field survey of indoor air quality in
detached houses in Niigata Prefecture, Indoor Air, 13,
pp42-49.
Sherman
MH: (1989) “Analysis of errors associated with passive ventilation
measurement techniques, Building and Environment, 24,
pp131-138.
Yoshino
H, Yanagisawa Y, Kumagai K, Osawa H, Mihamura T, Suzuki N, Mihara K and
Okuizumi Y: (2004a). “Evaluation of the ventilation rate via four
different measuring methods, Proceedings of Roomvent 2004, 2,
pp366-367.
Yoshino H, Murakami S, Akabayashi S, Kurabuchi T,
Kato S, Tanabe S, Ikeda K, Osawa H, Sawachi T, Fukushima A and Adachi M:
(2004c). “Survey on minimum ventilation rate of residential buildings in
fifteen countries, Proceedings of 25th AIVC
Conference, Ventilation and retrofitting, pp227-238.
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Contents
Paper
1
Measurement of Ventilation Airflow Rates of 39 Houses by Three Different
Methods
Paper
2
Moisture and Condensation in Residential Buildings in a Relatively Dry
Region
Paper
3
The Measurement of Air Supply Volumes and Velocities in Cleanrooms
Paper
4
The Influence of Air Circulation, Jet Discharge Momentum Flux and Nozzle
Design Parameters on the Tightness of an Upwards Blowing Air Curtain
Paper
5
Experimental Study of Non-Isothermal Diverging Swirling and Non-Swirling
Annular Jets with Central Aspiration
Paper
6
Studying the Effect of Indoor Sources and Ventilation on the
Concentrations of Particulates in Dining Halls
Paper
7
Simulation of Atrium Smoke Filling by Computational Fluid Dynamics
Paper
8
Fire and Smoke Management in a Uni-Directional Road Tunnel for a Congested
Traffic Condition
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