DRAFT RISK FROM COLD VERTICAL SURFACES

被引：37

作者：

HEISELBERG, P

机构：

[1] Department of Building Technology and Structural Engineering, Aalborg University

来源：

BUILDING AND ENVIRONMENT | 1994年 / 29卷 / 03期

关键词：

D O I：

10.1016/0360-1323(94)90026-4

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Cold, natural convective flows from glazed facades are in winter time often the cause of thermal discomfort and there is a need for research to improve design methods. The objective of the research is to develop expressions for the air flow beyond the floor area, which influences the thermal comfort in the occupied zone. Expressions for the rate of decrement of the maximum velocity with distance from the surface and for the maximum temperature difference between the cold airflow along the floor and the rest of the occupied zone have been developed. The percentage of dissatisfied persons in the occupied zone, due to cold downdraught from a vertical surface, has been estimated.

引用

页码：297 / 301

页数：5

共 10 条

[1]

Eckert, Jackson, Analysis of turbulent free-convection boundary layer on flat plate, NACA Report 1015, (1951)

[2]

Bayley, An analysis of turbulent free‐convection heat‐transfer, ARCHIVE: Proceedings of the Institution of Mechanical Engineers 1847-1982 (vols 1-196), 169, pp. 361-368, (1955)

[3]

Kriegel, Kalluftabfall an Abkühlungsflächen, Klima-Kälte-Technik, 4, pp. 82-86, (1973)

[4]

Cheesewright, Turbulent Natural Convection from a Vertical Plane Surface, Journal of Heat Transfer, 90, pp. 1-8, (1968)

[5]

Lilja, Kallras—inte så farligt som det låter, Svensk VVS, 9, pp. 499-506, (1966)

[6]

Shillinglaw, Cold window surfaces and discomfort, BSE, 45, pp. 43-51, (1977)

[7]

Turner, Buoyancy Effects in Fluids, (1979)

[8]

Koh, Two-dimensional surface warm jets, ASCE, 97, pp. 819-836, (1971)

[9]

Jacobsen, Nielsen, Velocity and temperature distribution in flow from an inlet device in rooms with displacement ventilation, Proceedings of Roomvent '92, 3, pp. 21-32, (1992)

[10]

Fanger, Christensen, Perception of draught in ventilated spaces, Ergonomics, 26, pp. 215-235, (1986)

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