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For stator cooling, water can be used. Helium with a thermal-conductivity of 0.142 W/(m·K) was considered as coolant as well; however, its high cost hinders its adoption despite its non-flammability. [4] Generally, three cooling approaches are used. For generators up to 60 MW, air cooling can be used. Between 60 and 450 MW hydrogen cooling is ...
In motor vehicle applications a supplementary radiator is sometimes used for improved heat removal, though the use of an electric water pump to circulate a coolant adds parasitic loss to total generator output power. Water cooling the thermoelectric generator's cold side, as when generating thermoelectric power from the hot crankcase of an ...
The HRSG can recover the heat from the gas turbine to produce steam/hot water for district heating or cooling. [ 1 ] Large ocean vessels (e.g., Emma Maersk ) make use of heat recovery so that their oil-fired boilers can be shut down while underway.
State-of-the-art AWG for home use. An atmospheric water generator (AWG), is a device that extracts water from humid ambient air, producing potable water. Water vapor in the air can be extracted either by condensation - cooling the air below its dew point, exposing the air to desiccants, using membranes that only pass water vapor, collecting fog, [1] or pressurizing the air.
Diagram of a typical water-cooled surface condenser. The adjacent diagram depicts a typical water-cooled surface condenser as used in power stations to condense the exhaust steam from a steam turbine driving an electrical generator as well in other applications.
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The generator also uses water cooling. Since the generator coils are at a potential of about 22 kV, an insulating barrier such as Teflon is used to interconnect the water line and the generator high-voltage windings. Demineralized water of low conductivity is used.
The D-curve for a particular generator can be expanded by improved cooling. Hydrogen-cooled turbo generator's cooling can be improved by increasing the hydrogen pressure, larger generators, from 300 MVA, use more efficient water cooling. [3] Capability curve of a synchronous generator with minimum load. The practical D-curve of a typical ...