Marine Exhaust Gas Economizer Steam Production & Performance Tool
Waste Heat Recovery • Steam Production • Exhaust Temperature • Pressure Drop • Fouling • Steam Demand • Auxiliary Boiler Offset
Marine Exhaust Gas Economizer Steam Production & Performance Tool
Estimate recoverable exhaust heat, saturated-steam production and demand coverage, then move into a full operating-point performance model with bypass, fouling, gas-side pressure drop, measured-vs-predicted output and fired-boiler fuel offset.
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Eight-input steam-production screen.The minimum exhaust outlet temperature is user-entered because acceptable stack temperature depends on engine, fuel, economizer design, corrosion/dew-point considerations and OEM limits.HeatRecoverable exhaust duty
SteamEstimated saturated steam
DemandCoverage or shortfall
Exhaust & Steam Basis
kg/s through the economizer.
°C.
°C, user/OEM/project criterion.
kJ/kg·K.
% of heat available down to the entered outlet floor.
bar(g), saturated steam assumption.
°C.
t/h for comparison.
Steam / Economizer Design Basis
bar(g), saturated steam basis.
°C.
kJ/kg·K.
°C, user/OEM/project limit.
°C, user-entered reference only.
°C planning margin.
t/h, OEM/project cap.
kg/s for gas-side ΔP scaling.
Pa.
Dimensionless, often near 2 for turbulent systems.
1.0 = clean reference.
Pa, user/OEM/project limit.
% for fuel-offset estimate.
MJ/kg.
Engine / Economizer Operating Points
Each row can represent a voyage phase or engine load point. Measured steam, outlet temperature and pressure drop are optional. Leave measured fields at 0 when unavailable.
| Use | Phase | Hours | Engine load % | Gas flow kg/s | Inlet °C | Bypass % | Heat surface condition % | Steam demand t/h | Measured steam t/h | Measured outlet °C | Measured ΔP Pa |
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Economizer Readiness Checks
Engineering boundary: this tool estimates steady-state heat recovery and saturated-steam production. It does not replace OEM heat-balance calculations, boiler/economizer design, approved steam-system drawings, water-circulation analysis, engine back-pressure checks, boiler-water chemistry control, soot-fire procedures or class approval.