[1]朱宏辉,牛宝联,张忠斌.通风槽式地板下送风空调系统性能分析[J].南京师范大学学报(工程技术版),2020,(04):057-64.[doi:10.3969/j.issn.1672-1292.2020.04.009]
 Zhu Honghui,Niu Baolian,Zhang Zhongbin.Performance Analysis on the Air Conditioning SystemUnder Floor with Ventilation Trough[J].Journal of Nanjing Normal University(Engineering and Technology),2020,(04):057-64.[doi:10.3969/j.issn.1672-1292.2020.04.009]
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通风槽式地板下送风空调系统性能分析
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南京师范大学学报(工程技术版)[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2020年04期
页码:
057-64
栏目:
土木工程
出版日期:
2020-12-15

文章信息/Info

Title:
Performance Analysis on the Air Conditioning SystemUnder Floor with Ventilation Trough
文章编号:
1672-1292(2020)04-0057-08
作者:
朱宏辉牛宝联张忠斌
南京师范大学能源与机械工程学院,江苏 南京 210023
Author(s):
Zhu HonghuiNiu BaolianZhang Zhongbin
School of Energy and Mechanical Engineering,Nanjing Normal University,Nanjing 210023,China
关键词:
小空间空调人员密集地板送风通风性能热舒适
Keywords:
small space air conditioningassembly occupanciesunderfloor air distributionventilation performancethermal comfort
分类号:
TU831.3
DOI:
10.3969/j.issn.1672-1292.2020.04.009
文献标志码:
A
摘要:
以空间小、人员密集的小型隔音会议室为研究对象,设计了一种通风槽式地板下送风系统. 采用CFD模拟与实验验证相结合的方式,对该会议室的通风性能进行了研究. 通过对比3种送回风结构的室内温度场和速度场分布得出,当采用送回风口异侧模型时室内人员有更好的舒适性体验; 对于小型会议室,为了提升人体舒适感,更适宜采用非静压箱型地板送风方式. 在此送回风方式基础上,分析了小型会议室内人员数量和送风温度对室内热舒适度的影响,并以典型工况为例将实测结果与模拟结果进行了对比. 实验结果表明,实测与模拟的误差在可接受范围内,说明模拟结果具有可信性,通风槽式地板下送风系统用于小空间可满足人员的舒适性要求.
Abstract:
A small soundproof conference room with small space and dense personnel is taken as the research object in this paper. A ventilation trough type underfloor air supply system is designed,and CFD simulation and experimental verification are combined to study the ventilation performance of the conference room. By comparing the distributions of indoor temperature field and velocity fields of three kinds of return air structures,it can be concluded that indoor personnel has better comfort experience when the model of the different side of the return air outlet is adopted. At the same time,for small conference rooms,in order to improve human comfort,it is more appropriate to adopt the non-static pressure box type floor air supply mode.Based on this method,the influence of the staff number and supply air temperature on indoor thermal comfort in a small type conference room is analyzed,and the typical working conditions are used as the example to compare the measured results with the simulated results. The experimented results show that the error between the measurement and simulation is within the acceptable range,which shows that the simulation results are credible. The ventilation trough under-floor air supply system can meet the requirements of personnel comfort shows when used in small space.

参考文献/References:

[1] 苗春卫,王思叶,冯维淼. 保密会议室声音防护技术研究[J]. 保密科学技术,2011(5):26-30.
[2]兰丽. 室内环境对人员工作效率影响机理与评价研究[D]. 上海:上海交通大学,2010.
[3]李安桂,李明明. 小微空间通风空调贴附式气流组织的有效性研究[J]. 西安建筑科技大学学报(自然科学版),2016,48(1):115-121.
[4]刘志永,尹海国,孙翼翔,等. 基于乘客热舒适性的空调列车软卧包厢送风气流组织优化研究[J]. 铁道学报,2017,39(12):50-57.
[5]杨丽,BING W. 不同通风方式与室内空气环境质量的数值模拟分析[J]. 建筑科学,2014,30(4):78-83.
[6]FATHOLLAHZADEH M H,HEIDARINEJAD G,PASDARSHAHRI H. Prediction of thermal comfort,IAQ,and energy consumption in a dense occupancy environment with the under floor air distribution system[J]. Building and Environment,2015,90:96-104.
[7]LI X D,YAN Y H,TU J Y,et al. Overall performance evaluation of underfloor air distribution system with different heights of return vents[J]. Energy and Buildings,2017,147:176-187.
[8]SCHIAVON S,WEBSTER T,LEE K H,et al. Thermal decay in underfloor air distribution(UFAD)systems:fundamentals and influence on system performance[J]. Applied Energy,2012,91(1):197-207.
[9]LIN Y J P,TSAI T Y. An experimental study on a full-scale indoor thermal environment using an under-floor air distribution system[J]. Energy and Buildings,2014,80:321-330.
[10]NILSSON H O. Thermal comfort evaluation with virtual manikin methods[J]. Building and Environment,2007,42:4000-4005.
[11]LI S H,ZHANG X S,ZHANG K. Simplified model for desired airflow rate in under floor air distribution(UFAD)systems[J]. Applied Thermal Engineering,2016,93:244-250.
[12]VICTOR Y,STEVEN A O. Renormalization group analysis of turbulence. I. Basic theory[J]. Journal of Scientific Computing,1986,1(1):3-51.
[13]GLICKSMAN L R,HU Y Q,YUAN X X,et al. Measurements and computations of room airflow with displacement ventilation[J]. ASHRAE Transactions,1999,105(1):340-352.
[14]陆耀庆. 实用供热空调设计手册[M]. 2版. 北京:中国建筑工业出版社,2007:1928-1940.
[15]徐洪涛,牛建磊. 地板送风系统的人体活动区域冷负荷计算的一种数值方法[J]. 建筑科学,2007,23(2):37-40,75.
[16]全国法制计量技术委员会. 测量不确定度评价与表示:JJF1059—2012[S]. 北京:中国标准化出版社,2010:3-20

备注/Memo

备注/Memo:
收稿日期:2019-12-18.
通讯作者:牛宝联,博士,副教授,研究方向:建筑环境气流组织优化和管理、制冷设备性能优化. E-mail:niubaolian@njnu.edu.cn
更新日期/Last Update: 2020-12-15