送风量对渗透式纤维空气分布系统送风特性影响的实验研究  

Experimental Investigation of the Effect of Air Supply Rate on Characteristics of Airflow Generated by Fabric Air Dispersion System in Penetration Mode

作　　者：陈孚江[1] 王金良[1] 陈建芳[1] 赵鹏程[1] 孙维栋[1] 

机构地区：[1]常州大学建筑环境与能源应用工程系,江苏常州213016

出　　处：《建筑节能》2014年第7期1-4,共4页BUILDING ENERGY EFFICIENCY

基　　金：国家自然科学基金项目(51308077);江苏省高校自然科学基金项目(13KJB560001)

摘　　要：采用现场实验的方法研究了送风量对渗透式纤维空气分布系统送风时表面空气流速和纤维空气分布系统空腔内部轴向空气压力分布的影响。实验结果表明:送风量对渗透式纤维空气分布系统对空气的"自整流"作用影响较小,与空气渗透流速大小成线形关系。随着送风量的增加,渗透式纤维空气分布系统空腔内部空气总压和静压值逐渐增加,静压增加梯度和动压衰减梯度越来越大,末端处静压复得现象愈明显。研究结果可为相应的数值模拟及工程设计提供参考。The effect of air supply rate on airflow characteristics was experimentally studied, including air velocity close to the fibre structure, and the internal pressure inside the cavity of fabric air dispersion system. It is shown that the fabric air dispersion system in penetration mode can alternatively adjust the airflow to evenly discharge out along the length direction, which is seldom influenced by the supply air flow rate, yet the air speed is linear with air supply rate. Regarding to the internal pressure inside the cavity of fabric air dispersion system, both the total and static pressure along the length direction increase with the increasing air supply rate, so do the gradient of the static and dynamic pressure. Results would be useful to numerical analysis and engineering design.

关 键 词：纤维空气分布系统 送风量 渗透 速度分布 压力分布 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]