Analysis on Hybrid Ventilation Effect of Railway Station Buildings in Hot Summer and Cold Winter Regions
The use of a hybrid ventilation system consisting of natural ventilation,mechanical ventilation and air conditioning in railway station buildings can improve personnel thermal comfort while reducing energy consumption.This paper uses EnergyPlus software to simulate the natural ventilation potential,hybrid ventilation switching temperature and ventilation effect under hybrid ventilation strategies for railway station buildings in hot summer and cold winter regions.The results show that during non-heating seasons the average natural ventilation rate of railway station buildings in hot summer and cold winter areas can reach up to 60-70m³/s.The average total air change rate can reach 1.9 times/h.The temperatures for switching up and down in hybrid ventilation should be set at 23℃and 15℃.Compared with fully adopting the mechanical cooling system,the hybrid ventilation system combining natural ventilation with mechanical ventilation and air conditioning can reduce energy consumption by about 65000 kWh.
hot summer and cold winter regionsrailway station buildingshybrid ventilationthermal comfortenergy saving analysis
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