不同送风工况下密闭空间内CO_(2)浓度的数值模拟  

Numerical Simulation of CO_(2) Concentration in Confined Space Under Different Air Supply Conditions

作　　者：陈元超 杨侠[1] 王金山 杨清 曹吉胤 张刚 CHEN Yuan-chao;YANG Xia;WANG Jin-shan;YANG Qing;CAO Ji-yin;ZHANG Gang(School of Mechanical&Electrical Engineering,Wuhan Institute of Technology,Wuhan 430205,China;Wuhan Xin Ding Tai Technology Co.,Ltd.,Wuhan 430205,China)

机构地区：[1]武汉工程大学机电工程学院,湖北武汉430205 [2]武汉鑫鼎泰技术有限公司,湖北武汉430205

出　　处：《机械工程与自动化》2023年第1期73-75,共3页Mechanical Engineering & Automation

摘　　要：为了考察密闭空间内人呼出CO_(2)浓度分布规律,基于计算流体力学的方法,利用Airpak软件,对采用中间顶部送风的密闭空间进行数值模拟,分析送风速度分别为1 m/s、2 m/s、3 m/s和送风温度分别为20℃、25℃、30℃工况下CO_(2)浓度的分布规律。模拟结果表明:送风速度为1 m/s时CO_(2)浓度最低,送风温度为30℃时CO_(2)浓度最高。总结密闭空间内不同送风工况下CO_(2)浓度分布的规律,为现实中密闭空间清除CO_(2)参数设定提供了参考依据。In order to investigate the distribution law of human exhaled CO_(2)concentration in confined space, based on the method of computational fluid dynamics, this paper uses Airpak software to conduct numerical simulation of confined space with middle top air supply, and analyzes the distribution law of CO_(2)concentration under the conditions of air supply velocity(1 m/s, 2 m/s, 3 m/s) and air supply temperature(20 ℃, 25 ℃, 30 ℃). The simulation results show that the CO_(2)concentration is the lowest when the air supply speed is 1m/s, and the CO_(2)concentration is the highest when the air supply temperature is 30 ℃. The distribution of CO_(2)concentration under different air supply conditions in confined space is summarized, which provides a reference for setting CO_(2)removal parameters in confined space in reality.

关 键 词：CO_(2)浓度 数值模拟 通风工况 密闭空间 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术]