WHR Exhaust Economizer - Steam Generation
Exhaust-gas economizer steam production rate given exhaust mass flow, inlet T, and evaporator pinch-point temperature.
Heat available
4,125kW
Steam production
7,262kg/h
Formula, assumptions, and limits
Exhaust out temperature kept ≥ 165 °C to avoid sulphuric-acid dew-point corrosion (HFO with 2.5 % S). With LSMGO the cutoff can drop to 135 °C.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Exhaust mass flow | kg/s | engine performance | |
| Specific heat of exhaust | kJ/kg·K | exhaust analysis | |
| Latent heat of steam | kJ/kg | IAPWS tables |