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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Contract notice: implementation work for the installation of a desuperheater for the solar panels of the youth hostel in the halle pajol located at 20 esplanade nathalie sarraute in paris 18th.
Electrical use, efficiency, and peak demand of electric resistance, heat pump, desuperheater, and solar hot water systems.
The 5 ton (18 kW) heat pump with the highest load has a desuperheater installed for domestic hot water preheating.
Each desuperheater is tailored to the application for the highest efficiency in a wide range of industries, including chemical, processing, power generation and oil and petrochemicals.
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.
Many residential systems also incorporate a small auxiliary heat exchanger called a desuperheater to heat the domestic water supply, providing 60% of the normal household hot-water load.