Hydrogen Coolers For Generator Cooling

Generator will be mechanical energy into electrical energy at the same time, due to the rotor and stator coil current flow and producing copper losses, stator core and its side of the end of the structural parts of the alternating magnetic field under the action of iron losses, rotor and stator surface due to cutting the magnetic field of the local production of eddy current losses. In addition, the cooling medium will produce friction losses, bearings and oil film friction losses. These losses are manifested in the form of heat, in order to avoid the generator coil due to temperature rise and reduce the insulation strength, or even cause insulation damage, must be set up generator cooling equipment, timely discharge of heat generated by the loss, in order to ensure that the generator in the permissible temperature under normal operation.

Hydrogen cooler is a special type of cooling system used for generator cooling. In a hydrogen cooling system, hydrogen is used as the cooling medium, replacing conventional air or water cooling systems. This technology is commonly used for large electric power generators, especially in nuclear power plants.

Hydrogen has a high thermal conductivity, allowing it to absorb and transfer heat more efficiently, increasing cooling efficiency.

Hydrogen has a low gas drag, which helps to reduce wind resistance in the rotating parts of the generator and improves generator efficiency.

Hydrogen has a high heat capacity and is able to absorb more heat at the same temperature change, helping to cope with load changes and ensure stable generator operation.

Hydrogen coolers help reduce partial discharges in generators, extend equipment life and improve system reliability.

The use of hydrogen coolers reduces the risk of fire because hydrogen is a colourless, odourless and very light gas.