Study Of Chengdu Subway Station With Groundwater Cooling System

Energy consumption escalation causes grim energy situation with rapid growth of national economy.Usually cooling system of subway station environment control system occupies more proportion,and during the early days of subway operation, environment control system energy consumption exceed the half of total energy consumption,which seriously affects the economic results of subway operation. This paper advances groundwater AC system combined with Cheng Du subway project and analyses the meaning and the feasibility of it.By the optimize design.this paper provides the best system parameters for the stations which have groundwater AC system.This paper builds optimize modeling with the plate heat exchanger total expenses the objective function to get the best results of groundwater end temperature,both sides flow number,single side total channel number,and gets the least total expenses number. AHP method of Multiple-Criteria Decision Making is applied in water spray coefficient optimization.The program in this paper can get the system parameters, the plate heat exchanger total expenses, tube well first investment,system operation expenses to estimate the feasibility of stations to apply groundwater AC system.The similar projects in other areas also can use the programs to design and estimate.The study of subway station environment control system goes along by developing subject study combining concrete project because of the differences of weather condition,passenger flow density,equipment level,economy status,etc.This task combines with Chengdu subway of first stage to study and can supply a reference standard for the similar projects in other areas.