Author: Vivian Renaud, Media Production Specialist, Leister Technologies Deutschland GmbH
In a pioneering development, Siemens Energy AG, in partnership with Leister, has succeeded in replacing conventional power sources with renewable energies to electrify complex industrial processes. The innovations range from grid technology to storage and electrification. Their prime application is in the efficient heating of turbine rotors, further optimized by recirculating and utilizing the exhaust air process. This creates a cycle that maximizes efficiency.
Simple Exhaust Air Recycling with Leister Products
The core of these technologies is the LE10000 DF-R heater from Leister, combined with the RBR blower and the CSS control system. The Leister components are housed in a mobile aluminum profile structure, with the circuit components in a compact cabinet on the superstructure.
The innovative application involves heating a turbine rotor to up to 120 °C with a cycle of over 24 hours during rotation. The simultaneous heating of the winding ends of a generator rotor with the oven is specified by the production process.
A chamber temperature of up to 160 °C is maintained here for a period of up to twelve hours. A hot air blower supplies the heated chamber in which the rotor turns and is then fed from the LE10000 DF-R to the process using a high-temperature hose. The used air is fed back to the RBR blower through another hose.
More Efficient Thanks to the RBR Blower
