Steam Balance, Fired-Boiler Load, Waste-Heat Dispatch, Burner Fuel, N-1 Critical Steam, Feedwater & Annual Cost

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

Build the ship's auxiliary steam balance from the operating demand instead of boiler nameplate alone. Calculate required steam after distribution loss and design margin, dispatch waste-heat steam first, determine fired-boiler load and burner fuel, check installed steam capacity, and in Advanced mode model all operating modes, electric steam, blowdown, condensate return, burner and fuel-train limits, feedwater pumps, N-1 critical steam and annual operating cost.

Data type
Currency
Currency selection changes display only. No exchange-rate conversion is performed.
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Need much more depth? Click Advanced above. Add sea, port and cargo consumer registers, electric steam, blowdown, condensate return, burner limits, N-1 critical steam, feedwater pumps, dump capacity and annual cost.

Fast Steam-Plant Screen

Enter the coincident steam demand for the operating condition that matters. Simple mode assumes saturated steam and uses the entered pressure and feedwater temperature to estimate boiler heat duty.

kg/h before distribution loss and design margin.
% of consumer demand.
% applied after distribution loss.
kg/h available in this operating case.
bar(g). Saturated-steam screen covers 0 to 20 bar(g).
°C.
% fuel LHV to useful boiler heat.
MJ/kg.
kg/h each.

Operating Case & Annual Hours

Steam Consumer Register

Enter realistic coincident demand by operating mode. Mark only services that truly need to remain supplied in the one-fired-boiler-out critical case.

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

Steam, Feedwater & Blowdown Basis

% of consumer demand.
bar(g), saturated-steam interpolation.
°C.
%.
% of generated steam mass.
% of steam generation returned as condensate.

Waste-Heat & Electric Steam Sources

kg/h.
kg/h.
kg/h.
kW.
%.
% installed electric input made available to steam production.
Selected currency / kWh.
kg/h.

Fired Boiler, Burner & Fuel Train

kg/h each.
% MCR steam-equivalent firing level.
kg/h each.
kg/h total available to fired boilers.
MJ/kg.
Selected currency / tonne.
kW per online fired boiler.

Feedwater Pump Capacity

t/h each.
% above mass-balance feedwater demand.

Engineering Readiness

Steam-plant screening only: this tool is not a class-approved boiler heat balance, pressure-part design, safety-valve sizing calculation, burner-management review, combustion-air calculation, feedwater-pump NPSH study, steam-piping pressure-drop model, exhaust-gas economizer design, boiler-water chemistry program or OEM performance guarantee. Confirm the final design with approved P&IDs, boiler and burner certificates, current class / flag requirements and maker performance data.
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