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פותח על ידי קלירמאש פתרונות בע"מ -
Airflow and heat flux through the vertical opening of buoyancy-induced naturally ventilated enclosures
Year:
2008
Source of publication :
Energy and Buildings
Authors :
טייטל, מאיר
;
.
טנאי, יוסף
;
.
Volume :
40
Co-Authors:
Tanny, J., Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization, The Volcani Center, P.O. Box 6, Bet Dagan, 50250, Israel
Haslavsky, V., Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization, The Volcani Center, P.O. Box 6, Bet Dagan, 50250, Israel
Teitel, M., Institute of Agricultural Engineering, Agricultural Research Organization, The Volcani Center, P.O. Box 6, Bet Dagan, 50250, Israel
Facilitators :
From page:
637
To page:
646
(
Total pages:
10
)
Abstract:
Characteristics of the mean and turbulent airflow and heat flux through the vertical opening of a buoyancy-induced naturally ventilated full-scale enclosure with upper and lower vents on one of the sidewalls were studied experimentally. The effect of the interaction between the mixing and the displacement ventilation modes on the airflow through the upper vent is explored. Measurements include vertical profiles of mean and turbulent air velocity and temperature through the upper opening using a three-dimensional sonic anemometer. The airflow appears to be inclined to the horizontal plane due to the effect of buoyancy. The level of the neutral plane at the upper vent, defined here as the plane separating between inflow and outflow, can be identified by the vertical profiles of both mean flow and turbulence intensity, with good agreement between the two approaches. The contribution of the turbulent to the total (mean and turbulent) heat flux through the vent decreases as ventilation transforms from the mixing to the displacement mode. © 2007 Elsevier B.V. All rights reserved.
Note:
Related Files :
energy conservation
Energy spectrum
Turbulence intensity
Turbulent flow
Velocity measurement
Velocity measurements
Ventilation
עוד תגיות
תוכן קשור
More details
DOI :
10.1016/j.enbuild.2007.04.020
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
22999
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:56
You may also be interested in
Scientific Publication
Airflow and heat flux through the vertical opening of buoyancy-induced naturally ventilated enclosures
40
Tanny, J., Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization, The Volcani Center, P.O. Box 6, Bet Dagan, 50250, Israel
Haslavsky, V., Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization, The Volcani Center, P.O. Box 6, Bet Dagan, 50250, Israel
Teitel, M., Institute of Agricultural Engineering, Agricultural Research Organization, The Volcani Center, P.O. Box 6, Bet Dagan, 50250, Israel
Airflow and heat flux through the vertical opening of buoyancy-induced naturally ventilated enclosures
Characteristics of the mean and turbulent airflow and heat flux through the vertical opening of a buoyancy-induced naturally ventilated full-scale enclosure with upper and lower vents on one of the sidewalls were studied experimentally. The effect of the interaction between the mixing and the displacement ventilation modes on the airflow through the upper vent is explored. Measurements include vertical profiles of mean and turbulent air velocity and temperature through the upper opening using a three-dimensional sonic anemometer. The airflow appears to be inclined to the horizontal plane due to the effect of buoyancy. The level of the neutral plane at the upper vent, defined here as the plane separating between inflow and outflow, can be identified by the vertical profiles of both mean flow and turbulence intensity, with good agreement between the two approaches. The contribution of the turbulent to the total (mean and turbulent) heat flux through the vent decreases as ventilation transforms from the mixing to the displacement mode. © 2007 Elsevier B.V. All rights reserved.
Scientific Publication
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