Steam Consumers, Fired Boilers, Exhaust-Gas Recovery, Electric Steam, Feedwater, Blowdown, Burner Fuel & N-1 Capacity

Marine Boiler Steam Balance, Burner Fuel & Auxiliary Steam Capacity Tool

Build the ship's auxiliary steam balance from actual consumers instead of boiler nameplate alone. Calculate sea, port or cargo-operation demand, distribution loss and margin, dispatch waste-heat and electric steam before fired boilers, convert steam production into burner fuel using pressure and feedwater enthalpy, check burner and fuel-supply capacity, test one-boiler-out critical steam coverage, quantify feedwater and make-up water, identify excess-steam dump demand, and estimate annual steam-plant operating cost.

Currency
Currency selector changes display only. No exchange-rate conversion is performed.

Operating Case & Steam-System Basis

Choose the condition that sizes the steam plant. Advanced mode also annualizes all three operating modes from the consumer register and entered annual hours.

%
%
h/year
h/year
h/year
h/year
Used only in Simple mode for the selected design case.

Steam Consumers - Selected Design Case

kg/h
kg/h
kg/h
kg/h
kg/h
kg/h
kg/h
Critical services that must remain supplied after one fired boiler is unavailable.

Steam Consumer Register

Enter each consumer's realistic coincident demand by vessel operating mode. Mark genuinely critical consumers for the one-boiler-out screen.

Consumer Sea kg/h Port kg/h Cargo kg/h Critical?

Steam Pressure, Feedwater & Boiler Thermodynamics

bar(g)
Saturated-steam interpolation table in this tool covers 0-20 bar(g).
°C
%
% steam
%
%

Waste-Heat & Electric Steam Sources

kg/h
kg/h
kg/h
kW
%
% capacity
Waste heat is dispatched first, electric steam second, fired boilers last.
$ / kWh
kg/h

Fired Boiler, Burner & Fuel-Supply Capacity

kg/h
% MCR
kg/h
kg/h
MJ/kg
$ / tonne
kW/online boiler

Feedwater Pump Capacity

t/h

Engineering Readiness

Engineering screening only: This tool is not a class-approved boiler heat balance, burner selection, pressure-part design, safety-valve sizing, boiler-water chemistry program, feedwater-pump NPSH calculation, steam-piping design, condensate-return study, exhaust-gas economizer design, automation / burner-management review or OEM guarantee. Saturated-steam properties are interpolated for screening. Use current class rules, approved P&IDs, boiler certificates, steam tables and maker performance curves for final design.
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