隔板工位送风末端气流组织数值模拟研究

Numerical Simulation Study on Airflow Distribution at the Partition-type Task Air Supply Terminal

工位送风通常与背景送风相结合来消除室内余热,该方式会增加系统的投资和运行费用。为解决此问题,采用数值模拟的方法对工位区迎面送风、面部双侧送风及头腿送风等末端形式的送风性能进行研究,试图用工位送风替代背景送风。研究结果表明,迎面送风和面部双侧送风在230m^(3)/h~270m^(3)/h风量范围内可替代背景送风,其中面部双侧送风消除工位区和背景区余热能力较强,在较小风量下就能达到室内温度要求;而头腿送风在144m^(3)/h~288m^(3)/h整个模拟风量范围内都不能替代背景送风。研究结果可为个性化环境设计提供参考。

Task air supply is usually combined with background air supply to eliminate residual heat in the room.This method will increase the investment and operating costs of the system.In order to solve this problem,this paper uses numerical simulation method to study the end-type air supply performance such as head-on air supply,face-side air supply,head-leg air supply,etc.in the task area,and attempts to replace the background air supply with task air supply.The research results show that the on-air supply and the double-sided supply can replace the background supply in the range of 230m^(3)/h~270m^(3)/h.Among them,the double-sided supply of the face eliminates the residual heat in the task area and the background area.The indoor temperature requirement can be reached under a small air volume;the head and leg air supply can’t replace the background air supply in the entire simulated air volume range of 144m^(3)/h~288m^(3)/h.The research results can provide a reference for the design of personalized environment.