Research on the start-up of close-loop self-circulation evaporative cooling system of large electrical equipment

With the development of large electrical equipment, more and more cooling technologies are introduced to deal with the large amount of heat produced by the consumption. Close-loop self-circulation (CLSC) evaporative cooling technology is a newly developed technique for the cooling of the large electrical equipment. In certain circumstances, the air-cooling condenser is used as the secondary cooler in the evaporative cooling system of large electrical equipments. This paper mainly deal with the start-up of the CLSC evaporative cooling system, experiments and numerical simulations are carried out separately, and the results show that the structure of the inlet has great affect on the start-up of the evaporative cooling system. A reasonable structure can do great help to the start-up and the restart of cooling system.