Experimental study for natural ventilation on a solar chimney

被引：158

作者：

Arce, J. ^{[1
]}

Jimenez, M. J. ^{[2
]}

Guzman, J. D. ^{[2
]}

Heras, M. R. ^{[2
]}

Alvarez, G. ^{[3
]}

Xaman, J. ^{[3
]}

机构：

[1] UNAM, CIE, Temixco 62580, Morelos, Mexico

[2] CIEMAT, E-28040 Madrid, Spain

[3] SEP, DGEST, CENIDET, Ctr Nacl Invest & Desarrollo Tecnol, Cuernavaca 62490, Morelos, Mexico

来源：

RENEWABLE ENERGY | 2009年 / 34卷 / 12期

关键词：

Passive ventilation systems; Solar chimney; Natural ventilation; PERFORMANCE; MODEL; WALL;

D O I：

10.1016/j.renene.2009.04.026

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Thermal performance of a solar chimney for natural ventilation was experimentally investigated. The experimental model was implemented on full scale and real meteorological conditions, so that experimental results will be compared with the simulation results. The results show that for a maximum irradiance of 604 W/m(2), occurring around 13:00 h on September 15th, 2007, a maximum air temperature increment of 7 degrees C was obtained through the solar chimney. Also, a volumetric air flow rate ranging from 50 to 374 m(3)/h was measured on that day. Thus, an average air flow rate of 177 m(3)/h was achieved from 0:00 h to 24:00 h. The experimental solar chimney discharge coefficient, C-d, was 0.52. This coefficient is useful to determine the mass flow rate in the solar chimney design. It was observed that the air flow rate through the solar chimney is influenced by a pressure difference between input and output, caused by thermal gradients and wind velocity, mainly. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：2928 / 2934

页数：7

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