Comparison study of thermal comfort and energy saving under eight different ventilation modes for space heating

作     者：Xiangfei Kong Yufan Chang Nana Li Han Li Wei Li Xiangfei Kong;Yufan Chang;Nana Li;Han Li;Wei Li

作者机构：School of Energy and Environmental EngineeringHebei University of TechnologyTianjin 300401China North China Municipal Engineering Design&Research Institute Co.Ltd.Tianjin 300110China 

出 版 物：《Building Simulation》 (建筑模拟（英文）)

年 卷 期：2022年第15卷第7期

页      面：1323-1337页

核心收录：

学科分类：08[工学] 081404[工学-供热、供燃气、通风及空调工程] 0814[工学-土木工程] 

基　　金：This work is supported by the National Natural Science Foundation of China(No.51978231) the Natural Science Foundation of Hebei Province(No.E2019202452) the Hebei Province Funding Project for Returned Overseas Chinese Scholars(No.C20190507) 

主　　题：non-uniform ventilation air terminal positions thermal comfort energy saving subjective experiment 

摘      要：The relative location of inlets and outlets plays an important role in thermal comfort and energy conservation under ventilation modes for the building non-uniform indoor ***,a comparison study of thermal comfort and energy efficiency of eight widely-used ventilation modes for space heating was conducted in this *** subjective experiments and verified computational fluid dynamics(CFD)models were carried *** the subjective experiments,the vote of local thermal sensation(LTS),overall thermal sensation(OTS)and draft sensation were *** the CFD simulations,RNG κ-ε model was applied to compare and analyze the air temperature field,turbulence intensity,ventilation effectiveness and air diffusion performance index(ADPI).The thermal comfort results showed that the air inlets are better located at the mid-height level of a wall,and the outlets are located at the same or higher *** the results of the energy efficiency suggested that the inlets are better installed at the lower level of a wall,and the outlets should be placed far from the *** the results were conflict,the economic-comfort ratio was introduced to calculate and compare the thermal comfort and energy efficiency *** final results concluded that it can achieve excellent thermal comfort performance without sacrificing energy efficiency when the inlets are at the height of 1.2 m of the front wall,and the outlets are at 1.2 m height of the back *** it is the best choice for the winter air distribution in northern *** study can offer a guideline for the air terminal arrangements in non-uniform ventilation under heating mode.