层式通风不同送风方式对办公室气流组织特性的影响研究.pdf

文档介绍：层式通风不同送风方式对办公室气流组织特性的影响研究

韩瑞端王沣浩郝吉波张鑫

(西安交通大学人居环境与建筑工程学院,西安 710049)

摘要层式通风作为一种新的通风方式,在满足人体呼吸区的热舒适性和空气品质要求的前提下,具有
节能优势。本文针对冬季工况下运用层式通风,对办公室环境的温度场、速度场、浓度场和空气龄进行了
探索性实验测量。结果表明,和平送风相比,向下送风时房间的下部温度较高,呼吸区的风速小于 ,
满足热舒适要求,向下送风时房间下部的气态污染物浓度较低。实验研究工作对层式通风的设计和研究具
有指导意义。
关键词层式通风温度场风速场浓度场空气龄

INFLUENCE INVESTIGATON ON THE AIRFLOW CHARACTERISTICS OF
STRATUM VENTILATION IN OFFICE BUILDING WITH DIFFERENT
SUPPLYING AIR TYPES

Han Ruiduan Wang Fenghao Hao Jibo Zhang Xin
(School of Human Settlement and Civil Engineerring,Xi’an Jiaotong University,Xi’an 710049)

Abstract As a new ventilation method,stratum ventilation has energy-saving advantage based on satisfying
fort and indoor air temperature field,velocity field,concentration field and air age in a
model office was measured in this paper in winter by stratum experimental results show that the
temperature at the bottom of the environment chamber is higher than the upper zone when supplying air flows
pared with supplying velocity in occupants’breathing zone is lower than
,which can satisfy concentration of gaseous contaminants at the bottom of the
chamber is found to be experimental research is instructive for the development of the stratum
ventilation.
Keywords stratum ventilation;temperature field;velocity fiel