What is Desuperheating?
Desuperheating (or attemperation) is the process of reducing the temperature of super heated steam by injecting water. The injected water absorbs heat from the steam and evaporates completely, bringing the steam temperature closer to saturation or the specified outlet temperature.
Typical applications:
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Boiler outlet temperature control
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Turbine inlet temperature control
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HRSG and WHRB steam temperature regulation
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Process steam conditioning
Parameters Required for Calculating Desuperheating Water Flow
To determine the required spray water quantity, you need:
Steam Input Conditions
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Inlet steam pressure (P₁)
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Inlet steam temperature (T₁)
Steam Output Requirements
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Outlet steam pressure (P₂)
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Outlet steam temperature (T₂)
Water Conditions
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Desuperheating water temperature (Tᵥ)
Desuperheating Water Quantity Calculator
Calculates spray water required based on inlet & outlet steam pressure/temperature and water temperature.
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