Hybrid ventilation design for a pump house in Kunming area

The outdoor design temperature for summer ventilation in Kunming area is relatively low, and it has better natural ventilation conditions. The use of natural ventilation in the semi-underground pump house in Kunming can meet the heat dissipation requirements for most of the year. For the divert water pump station of the semi-underground pump house, the continuous running time is long and water supply safety requirements are high. In order to meet the heat dissipation requirements of the pump house under extreme outdoor air temperatures, the mechanical ventilation system should be designed at the same time. The hybrid ventilation system with a combination of natural ventilation and mechanical ventilation has the advantages of simple operation management, a high guarantee rate and low operating energy consumption.