Study on the Influence of Moisture Dissipation on the Thermal and Humidity Environment in the Turbine Floor of Underground Pumped Storage Hydropower Plants

The turbine floor of the main plant is an important part in underground pumped storage hydropower plants.The health personnel and safe operation equipment are endangered due to high space humidity water seepage through walls. In this paper, numerical simulations were used study thermal environment summer. Two working conditions with without dissipation computed compared. psychrometric chart was also analyze air treatment process floor. Results show that temperature decreases by 28% relative increases 34% when considering effect moisture source. results analyzed similar those simulation. And validition method conducted . research have a reference significance for predicting distribution arrangement dehumidification devices at design stage