Desuperheater

Desuperheater

Device that takes waste heat extracted by heat pumps or air conditioners and uses it to heat domestic hot water.

Desuperheater

 

a heat exchanger used to lower the temperature of superheated steam in a boiler unit or before a turbine. Changes in a boiler unit’s operation may lead to wide variations in the temperature of the superheated steam; a desuperheater then becomes necessary to prevent excessive superheating of the steam superheater or to maintain the steam turbine’s normal working conditions. A desuperheater is usually installed either in the intermediate header, which receives partially superheated steam, or at the point where the steam leaves the superheater. The steam is cooled by a water feed that removes heat from the steam. The water feed passes through the tubes of the heat exchanger in shell-and-tube-type desuperheaters, whereas in other desuperheaters it is directly injected. Condensate is frequently used in the latter case.

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The Equalizer(TM) mixing module isn't the only unique facet of the Komax desuperheater.
The surface type desuperheater, which ensures steam temperature as high as 450[degrees]C and also prevents superheater pipes from sintering due to deterioration of heat transfer, is located between the two superheaters.
However, the desuperheater was a little too large, resulting in saturated water exiting at excessive velocities that caused tube erosion.
Electrical use, efficiency and peak demand of electric resistance, heat pump, desuperheater and solar hot water systems, American Council for an Energy Efficient Economy, Asilomar Conference Center, Pacific Grove: CA, 1990.
The world's first plate heat exchanger made entirely of 100% stainless steel, AlfaNova[TM] is a fusion-bonded unit with the ability to withstand pressures up to 20 Bar and temperatures from -50[degrees]C to +175[degrees]C; attributes which also make it ideal for refrigeration duties such as evaporator, condenser, economizer, desuperheater and oil coolers to name just a few.
Part of the operational component was how the desuperheater system was regulating steam temperature, and the role this had in copper wastage.
Tenders are invited for Supply of DESUPERHEATER FOR COGEN PRDS.
The heat pump has a dedicated domestic hot-water generation through its desuperheater with an internally mounted loop and pump.
The desuperheater can recover up to 15% of the heat of rejection and raise water temperatures to 80[degrees]C.
No desuperheater is typically used and the water is heated with hot water coming from the heat pump.