Abstract：Research purposes:According to the weather characteristics of Dalian and its specific situations of the subway，the schemes for ventilation and air conditioning system were researched and analyzed．The scheme and operation mode of ventilation and air conditioning system were selected on the base of the calculation results obtained with SES software for simulation of subway environment．
Research conclusions: The mechanical ventilation system with open and close operation mode was used for the Dalian subway．The ventilation to the station and sectional tunnel and cooling temperature were achieved by making full use of natural cooling source and the air produced by piston in order to reduce the operation time of the ventilation device as much as possible and save the energy．According to the high air humidity of Dalian in summer，the air pumped into the public area of the station was dehumidified in the hottest months to make the environment more comfortable for passengers．The ventilation system for the station and ventilation system for sectional area equipments were interchangeable． And the operation modes could be switched according to the different conditions to enhance the unilization ratio of the device and reduce the ．first investment and maintenance cost of the device．
徐驰，1981 年出生，女，工程师; 刘英杰，1966 年出生，男，高级工程师. 大连地铁通风空调系统方案研究与分析[J]. 铁道工程学报, 2012, 29(10): 111-114.
XU Chi，LIU Ying － jie. Research and Analysis of Scheme for Ventilation and Air Conditioning System for Dalian Subway. 铁道工程学报, 2012, 29(10): 111-114.
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2012, Vol. 29 
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