WHR Exhaust Economizer - Steam Generation

Exhaust-gas economizer steam production rate given exhaust mass flow, inlet T, and evaporator pinch-point temperature.

WHREconomizerSteam

Exhaust mass flowkg/sExhaust cpkJ/kg·KExhaust in temperature°CExhaust out temperature°CSteam latent heatkJ/kg

Heat available: 4,125kW

Steam production: 7,262kg/h

Changing the inputs requires JavaScript. The calculator above shows its default inputs and result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

\dot m_{steam} = \frac{\dot m_{exh} \cdot c_p \cdot \Delta T}{h_{fg}}

Symbol	Meaning	Unit
$\dot m_{exh}$	Exhaust mass flow	kg/s
$c_p$	Specific heat of exhaust	kJ/kg·K
$h_{fg}$	Latent heat of steam	kJ/kg

Source: MAN ES WHRS Guidelines

In short

Exhaust-gas economizer steam production rate given exhaust mass flow, inlet T, and evaporator pinch-point temperature.

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