教室内不同送风方式气流组织有效性对比  

Comparative Study of the Air Distribution Effectiveness in Classrooms Between Impinging Jet Ventilation and Mixing Ventilation Systems

作　　者：顾婷婷 邓利艳 郭琦 赵昊鹏 齐贺闯 叶筱 亢燕铭[2] GU Ting-ting;DENG Li-yan;GUO Qi;ZHAO Hao-peng;QI He-chuang;YE Xiao;KANG Yan-ming(School of Mechanical and Automobile Engineering,Shanghai University of Engineering Science;College of Environmental Science and Engineering,Donghua University)

机构地区：[1]上海工程技术大学机械与汽车工程学院 [2]东华大学环境科学与工程学院

出　　处：《建筑热能通风空调》2022年第9期66-70,共5页Building Energy & Environment

基　　金：上海工程技术大学科研启动项目(No.19-05098)。

摘　　要：以教室为研究对象,通过三维CFD数值模拟,对比研究了碰撞射流通风和混合通风在用于教室冬季热风供暖时室内气流流动结构的差异。通过分析不同送风温差下室内空气分布特性,利用不均匀系数、吹风感、能量利用系数等指标对两种送风方式的通风效果进行了评价。Taking the classroom as the research object, three-dimensional numerical simulations were employed to make a comparative study of the indoor air distribution effectiveness between the impinging Jet Ventilation(IJV) and Mixing Ventilation(MV) systems used for room heating. By analyzing the distributions of air velocity and temperature under different supply air temperature differences, the ventilation performances of the two air supply modes were evaluated. The considered evaluation indices were uniformity coefficient, Draught Discomfort(PD), energy utilization coefficient.

关 键 词：热风供暖 碰撞射流通风 混合通风 气流组织有效性 送风温差 

分 类 号：TU834.31[建筑科学—供热、供燃气、通风及空调工程]