角送风形式下气流组织研究  

A Preliminary Study on Airflow Organization under Angular Air Supply

作　　者：马质聪 张兴惠 高晨晖 王少博 MA Zhicong;ZHANG Xinghui;GAO Chenhui;WANG Shaobo(School of Civil Engineering,Taiyuan University of Technology,Taiyuan 030024,China)

机构地区：[1]太原理工大学土木工程学院,太原030024

出　　处：《建筑科学》2020年第8期64-72,共9页Building Science

摘　　要：如今建筑室内空气调节主要依靠在某一固定气流组织形式下,通过改变送风温度及送风速度来达到室内热舒适性的要求。这种做法往往造成了调节方式少、适用范围窄、能源浪费等不足。针对这些问题,在保留各气流组织形式原有特点的基础上,提出了一种可以实现多种气流组织形式的角式送风系统。采用实验测试及数值模拟的方式,研究了新型送风系统在不同送风模式下的热舒适性和节能性。研究表明,在角式送风系统下采用以垂直贴附射流为主,水平贴附射流及辐流气流为辅的控制策略,既能达到工作区热舒适性要求,又有良好的节能效果。The indoor air conditioning of a building mainly depends on certain fixed airflow organization form.Indoor thermal comfort is ensured by changing air supply temperature and air supply speed.However,this approach also has some disadvantages,such as insufficient adjustment methods,narrow scope of application,and energy waste.Therefore,an angular air supply system capable of realizing various airflow organization forms is proposed to improve the problems while retaining the original characteristics of each airflow organization form.The thermal comfort and energy saving of the new air supply system under different air supply modes were investigated by experimental tests and numerical simulations.The results show that if the control strategy is dominated by vertical attached jets and assisted by horizontal attached jets and radial airflow,the angular air supply system can not only meet the requirements for thermal comfort in the work area,but also have good energy-saving effects.

关 键 词：气流组织 数值模拟 控制策略 贴附送风 实验 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]