Cools to 25°C in hot tunnels
Driven by the tunnel's own hot water, it lowers ambient temperature from 37°C to 25°C without external power.
Liufeng, Su · Yan, Qixiang · Wencheng, He · Ren, Junnan · Liao, Xiaolong · Zhang, Chuan
Tunnelling and Underground Space Technology 2025
Lowers rest room temperature to 25°C at 37°C ambient
Customized small absorption refrigeration unit