BUOYANCY-DRIVEN AIR-FLOW IN A STAIRWELL MODEL WITH THROUGH-FLOW

被引：7
作者：
ZOHRABIAN, AS
MOKHTARZADEHDEHGHAN, MR
REYNOLDS, AJ
机构：
[1] Skidmore, Owings and Merrill, Inc., London, W1X 5FH, Devonshire House, Mayfair Place
[2] Department of Mechanical Engineering, Brunel University, Uxbridge
来源：
ENERGY AND BUILDINGS | 1990年 / 14卷 / 02期
关键词：
D O I：
10.1016/0378-7788(90)90032-E
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This paper is concerned with measurement of buoyancy-driven air flows between the two compartments of a half-scale model of a stairwell. The flow was maintained by a heater placed in the lower compartment. The results of earlier investigations are extended by considering a through-flow via two small openings, one in the lower and the other in the upper compartment. The stairwell model and its instrumentation are described. The results include velocity and temperature measurements, volume and mass flow rates of air circulating between the lower and upper compartments and rate of heat loss from the stairwell; all are presented for various heat input rates. For the range of experimental conditions and sizes of the openings considered, the through-flow mass flow was about 15% of the circulation flow rate. The results also include the rate of heat and mass transfer via the openings. © 1990.
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页码：133 / 142
页数：10
相关论文
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