节能2025，Vol.44Issue(11)：1-5,5.DOI:10.3969/j.issn.1004-7948.2025.11.001
地下车库机械通风系统数值模拟研究
Research on numerical simulation of mechanical ventilation system in underground garages
摘要
Abstract
Aiming at the problems of low energy efficiency and uneven air flow organization distribution of the traditional mechanical ventilation system in underground garages,taking a certain underground garage in Jinan City as the research object,the ventilation performance and effect of the underground garage under three ventilation systems,namely natural supply air+mechanical exhaust,mechanical supply air+mechanical exhaust,and ductless induced ventilation,are studied,and the CFD numerical simulation method is adopted.The distribution laws of the CO concentration field,velocity field and temperature field of different ventilation systems at the 1.6 m cross-section of the human breathing height are obtained.The results show that the ductless induced ventilation system optimizes the air flow organization through high-speed jet disturbance,which can reduce the average CO concentration to 21.23 mg/m3.This is significantly better than the traditional duct ventilation system(natural supply air 52.47 mg/m3,mechanical supply air 39.33 mg/m3),and the distribution uniformity is better.The average temperature has dropped to 22.73℃,which can effectively improve the air quality in underground garages.关键词
机械通风/CFD模拟/诱导式通风系统/污染物浓度Key words
mechanical ventilation/CFD simulation/induced ventilation system/pollutant concentration分类
建筑与水利引用本文复制引用
HAN Hongjing,HAN Tao,LI Cui,WANG Yubo,ZHANG Qian..地下车库机械通风系统数值模拟研究[J].节能,2025,44(11):1-5,5.基金项目
山东省自然科学基金青年基金项目(项目编号:ZR2021QE143) （项目编号:ZR2021QE143）
