Hydrogen-cooled Turbo Generator
Based on the air-cooled turbo generator, gaseous hydrogen went into service as a coolant in the rotor and sometimes the stator of hydrogen-cooled turbo generators in 1937 at Dayton, Ohio, in October by the Dayton Power & Light Co allowing an increase in specific utilization and a 99.0% efficiency, because of the high thermal conductivity, high specific heat and low density of hydrogen gas this is the most common type in its field today. The hydrogen can be manufactured on-site by electrolysis.
The generator is hermetically sealed to prevent escape of the hydrogen gas. The absence of oxygen in the atmosphere within significantly reduces the damage of the windings insulation by eventual corona discharges. The hydrogen gas is circulated within the rotor enclosure, and cooled by a gas-to-water heat exchanger.
Read more about this topic: Turbo Generator
Famous quotes containing the word generator:
“He admired the terrible recreative power of his memory. It was only with the weakening of this generator whose fecundity diminishes with age that he could hope for his torture to be appeased. But it appeared that the power to make him suffer of one of Odette’s statements seemed exhausted, then one of these statements on which Swann’s spirit had until then not dwelled, an almost new word relayed the others and struck him with new vigor.”
—Marcel Proust (1871–1922)