Research methods:(1) According to the indoor COZ concentration control fresh air requirement, the fresh air should be handled single. (2) The stable indoor cooling load, variable fresh air and human cooling load could be handled by different units.(3)The supply of the ice storge system and the earth-source heat pump on elevator station may be recommended.
Research conclusion: (1)To control fresh air requirement, it could reduce fresh air cooling load.(2)To handled the variable cooling load, it could save energy.(3)To make use of ice storgy system under subway station environment system, the cost of electrical loads would reduce 40%, and the supply of the earth-souce heat pump on elevator station would reduce 30% than variable refrigeration volume system.