A new ventilation mode of air conditioning in subway vehicles and its air distribution performance
作者机构：School of Energy Science&EngineeringCentral South UniversityChangshaHunanChina CRRC Zhuzhou Electric Locomotive Co.Ltd.ZhuzhouHunanChina
出 版 物：《Energy and Built Environment》 (能源与人工环境（英文）)
年 卷 期：2021年第2卷第1期
页 面：94-104页
核心收录：
学科分类：1002[医学-临床医学] 100201[医学-内科学(含：心血管病、血液病、呼吸系病、消化系病、内分泌与代谢病、肾病、风湿病、传染病)] 10[医学]
主 题：Air conditioning supply Air distribution performance Air short-circuit Subway
摘 要：The traditional ventilation mode of subway vehicles adopts the form that the inlets and outlets are placed on the upper part of the *** air distribution formed in this mode often cause serious problems of thermal comfort and energy *** order to solve these problems caused by the traditional ventilation mode,a new hybrid ventilation mode was *** hybrid ventilation mode uses both upper and underside air supply inlets.A method for evaluating the air distribution performance of subway air conditioning was *** method applies non-uniformity coefficients,maximum temperature difference,air diffusion performance index,modified energy utilization coefficient and Air short-circuit comprehensive *** short-circuit comprehensive coefficient was a new index to evaluate the degree of air short-circuit of supply *** on the airflow simulation,the air distribution performance for the hybrid ventilation mode was evaluated using these indexes,and compared with the traditional ventilation *** results show that compared with the traditional ventilation mode,the hybrid ventilation mode has more uniform temperature distribution,better thermal comfort,higher energy utilization efficiency and lower degree of air short-circuit of supply air.
维普期刊数据库