An experimental study of stratified flow in enclosures

被引：47

作者：

Awad, A. S. ^{[2
]}

Calay, R. K. ^{[2
]}

Badran, O. O. ^{[1
]}

Holdo, A. E. ^{[2
]}

机构：

[1] Al Balqa Appl Univ, Fac Engn Technol, Dept Mech Engn, Amman 11134, Jordan

[2] Univ Hertfordshire, Fac Engn & Informat Sci, Dept Aerosp Automot & Design Engn, Hatfield AL10 9AB, Herts, England

来源：

APPLIED THERMAL ENGINEERING | 2008年 / 28卷 / 17-18期

关键词：

Stratified flown; Natural ventilation; Temperature distribution;

D O I：

10.1016/j.applthermaleng.2007.12.017

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper presents all experimental investigation of flow scenarios that lead to stratification within the ventilated enclosures. The effect of supply terminal and extract terminal at various airflow rates on the flow characteristics is experimentally investigated. It has been found that relative influence of inertia and buoyancy forces resolves the stratified flow characteristics. The stratification interface level height and the ventilation flow rates are two main factors in the design of natural ventilation system. The results can be used to obtain a good estimation of the effectiveness of a ventilation system at design stage. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：2150 / 2158

页数：9

共 27 条

[1]

AWAD AS, 2006, P WORLD REN EN ENV C

[2]

Awbi H.B, 1998, RENEW SUST ENERG REV, V2, P157

[3] Computational study of natural ventilation [J].

Ayad, SS .

JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS, 1999, 82 :49-68

[4] Turbulent fountains in a confined stratified environment [J].

Bloomfield, LJ ;

Kerr, RC .

JOURNAL OF FLUID MECHANICS, 1999, 389 :27-54

[5] Selective ventilation in large enclosures [J].

Calay, RK ;

Borresen, BA ;

Holdo, AE .

ENERGY AND BUILDINGS, 2000, 32 (03) :281-289

[6] Simulation of tunnel fires using a zone model [J].

Chow, WK .

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY, 1996, 11 (02) :221-236

[7]

DEWAN A, 2003, APPL MATH MODEL, P1

[8] Natural ventilation of a room with vents at multiple levels [J].

Fitzgerald, SD ;

Woods, AW .

BUILDING AND ENVIRONMENT, 2004, 39 (05) :505-521

[9]

FUKUHARA I, 2003, 7 INT S VENT CONT CO, P73

[10] Effective depth of fresh air distribution in rooms with single-sided natural ventilation [J].

Gan, GH .

ENERGY AND BUILDINGS, 2000, 31 (01) :65-73

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