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WHR Exhaust Economizer - Steam Generation

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

WHREconomizerSteam
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Formula, assumptions, and limits

m˙steam=m˙exhcpΔThfg\dot m_{steam} = \frac{\dot m_{exh} \cdot c_p \cdot \Delta T}{h_{fg}}
SymbolMeaningUnit
m˙exh\dot m_{exh}Exhaust mass flowkg/s
cpc_pSpecific heat of exhaustkJ/kg·K
hfgh_{fg}Latent heat of steamkJ/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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