Research on partially optimized air conditioning system in station space Kenji Takagi, Katsuhiro Miura, Hiroyuki Kaneko, Takayuki Kashiwa and Atsushi Takase E3S Web of Conf., 396 (2023) 01042 Published online: 16 June 2023 DOI: 10.1051/e3sconf/202339601042