|Table of Contents|

Numerical Simulation of Air Distribution Characteristics in Room of Stratum Ventilation(PDF)

南京师范大学学报(工程技术版)[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2014年01期
Page:
39-44
Research Field:
Publishing date:

Info

Title:
Numerical Simulation of Air Distribution Characteristics in Room of Stratum Ventilation
Author(s):
Xu JianYu YuejinZhang Ruonan
School of Energy and Mechanical Engineering,Nanjing Normal University,Nanjing 210042,China
Keywords:
stratum ventilationdisplacement ventilationair distributionIAQnumerical simulation
PACS:
TU831.8
DOI:
-
Abstract:
In this present paper,the Reynolds-averaged Navier-Stokes equations and the RNG k-ε turbulence model are used to predict three-dimensional temperature field,velocity field,pollutant CO2 concentration distribution in considering the exterior windows and interior heat radiation conditions imposed by thermal buoyancy effects.It also has computed PPV and PPD to evaluate human thermal comfort.At the same time,its performance is compared with displacement ventilation in the same situation.The result shows that,with the stratum ventilation,occupancy can have favorable IAQ and thermal comfort in the breathing zone.

References:

[1] 林章,周天泰,曾志宽.层式通风—高温空调下的出路[J].化工学报,2010,40(9):82-87.
Lin Zhang,Zhou Tiantai,Zeng Zhikuang.Ventilation system for higher room temperature setting[J].Journal of Chemical Industry and Engineering,2010,40(9):82-87.(in Chinese)
[2]刘晓东,严彩球,王沣浩,等.层式通风室内气流组织特性试验研究[J].制冷与空调,2009,9(2):57-60.
Liu Xiaodong,Yan Caiqiu,Wang Fenghao,et al.Experimental study of the air distribution characteristics in room of stratum ventilation[J].Refrigeration and Air-conditioning,2009,9(2):57-60.(in Chinese)
[3]李建兴,张美元.空调系统送风方式对热舒适性的影响[J].中国建设信息供热制冷,2005(10):77-80.
Li Jianxing,Zhang Meiyuan.The effect of thermal comfort with different air supply systems[J].China Construction Heating and Refrigeration,2005(10):77-80.(in Chinese)
[4]李俊,孙淑凤,狄洪发,等.稳态条件下人体对个体送风的热反应研究[J].暖通空调,2004,34(12):1-6.
Li Jun,Sun Shufeng,Di Hongfa,et al.Thermal response of human on personalized ventilation in stable conditions[J].HVAC,2004,34(12):1-6.(in Chinese)
[5]高乃平,贺登峰,牛建磊.关于个性化送风若干问题的讨论[J].建筑科学,2008,24(8):103-108.
Gao Naiping,He Dengfeng,Niu Jianlei.Some significant issues on personalized ventilation[J].Building Science,2008,24(8):103-108.(in Chinese)
[6]Lin Z,Chow T T,Tsang C F.Stratum ventilation-conceptual introduction[C]//Proceedings of the 10th International Conference on Indoor Air Quality and Climate.Beijing:Indoor Air,2005:3 260-3 264.
[7]Cho Y,Awbi H B,Karimipanah T.Theoretical and experimental investigation of wall confluent jets ventilation and comparison with wall displacement ventilation[J].Building and Environment,2008,43(6):1 091-1 100.
[8]Cho Y,Awbi H B,Karimipanah T.Comparison between wall confluent jets and displacement ventilation in aspect of the spreading ratio on the floor[J].Proceedings of the 10th International Conference on Indoor Air Quality and Climate,Vols1-5,2005:3 249-3 254.
[9]中国建筑科学研究院.GB/50736—2012采暖通风与空气调节设计规范[S].北京:中国建筑工业出版社,2012.
China Academy of Building Research.GB/50736-2012 The HVAC Design Code[S].Beijing:China Architecture and Building Press,2012.(in Chinese)
[10]李欣,罗军.置换通风的应用前景及其适用性分析[C]//全国暖通空调制冷2002年学术年会.武夷山,2002:188-193.
Li Xin,Luo Jun.The application prospect and availability analysis of displacement ventilation[C]//Proceedings of the Biennial Meeting of National HVAC & R.Wuyishan,2002:188-193.(in Chinese)
[11]Fanger ISO7730.Moderate Thermal Environments-determination of the PMV and PPD Indicates and Specification of the Conditions for Thermal Comfort[S].Genera:International Organization for Standardzition,1995.

Memo

Memo:
-
Last Update: 2014-03-31