Simulation and experimental study on ventilation and coolingtechnology for a 110 kV substation reactor room in summer

Reactors have the characteristics of high operation energy consumption and large heat dissipation. The ventilation and cooling effect of the reactor room directly affects the safe and stable operation of substations. In this paper, the reactor room of a 110 kV substation in Shanghai is taken as the research object, the temperature test of the reactor room is carried out under the peak load condition, a mechanical ventilation and cooling control scheme is designed, and the reliability of the scheme is verified by Fluent software. The results show that the indoor temperature of the reactor room is roughly consistent with the curve of the daily load, showing a sinusoidal function variation law. The peak indoor temperature of the reactor room occurs from 10:00 to 15:00 every day, lagging behind the outdoor ambient air temperature, and the average indoor air temperature reaches 38.7 ℃ at the maximum. The existing ventilation technical scheme for the reactor room cannot meet the heat dissipation demand under the highest load in summer. The cooling effect of mechanical ventilation under different design parameters is simulated and analysed, and the optimal air supply temperature and exhaust outlet location suggestions are given.