Experimental investigation of thermal and ventilation performances of stratum ventilation

被引：66
|
作者：
Tian, Lin [2 ,3 ]
Lin, Zhang [1 ]
Wang, Qiuwang [2 ]
机构：
[1] City Univ Hong Kong, Div Bldg Sci & Technol, Bldg Energy & Environm Technol Res Unit, Hong Kong, Hong Kong, Peoples R China
[2] Xi An Jiao Tong Univ, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China
[3] Shanghai Nucl Engn Res & Design Inst, Shanghai 200233, Peoples R China
来源：
BUILDING AND ENVIRONMENT | 2011年 / 46卷 / 06期
关键词：
Stratum ventilation; Elevated room temperature; Thermal comfort; Indoor air quality; Ventilation effectiveness; INDOOR AIR-QUALITY; COMFORT; TEMPERATURE; HEAD;
D O I：
10.1016/j.buildenv.2011.01.002
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Stratum ventilation has been proposed to cope for elevated indoor temperatures. Air speed, temperature and CO2 concentration of a stratum ventilated office are investigated experimentally. The data obtained under well defined conditions and therefore can be used for validating numerical models. Thermal comfort conditions and ventilation efficiency are studied based on the experimental results of four experimental cases. Thermal comfort indices, i.e. PMV, PPD and PD are calculated from measured data. The values of these indices are found to satisfy the requirements of ISO 7730, CR 1752-1998 and ASHRAE 55-2010. In terms of thermal comfort, the two cases with supply air temperature of 21 degrees C are found to perform better compared with the two cases with supply air temperature of 19 degrees C. For all the cases, the ventilation effectiveness is close to 1.5. This ventilation method could therefore be expected to provide indoor air quality in an efficient way. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1309 / 1320
页数：12
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