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Stirling Boiler

B&W’s Stirling® boiler has provided dependable steam to industry for more than 100 years. Since 1960 B&W has sold more than 240 Stirling power boilers that are providing more than 75 million lb/h steam flow, burning a wide variety of fuels. Many more vintage Stirling boilers installed prior to 1960 are still in operation today. A proven and flexible design has made the Stirling power boiler adaptable for applications in a variety of industries.

 Feature   Benefit
Custom designed within a framework of pre-engineered components Minimizes engineering costs and delivery times, while meeting specific steam and fuel conditions
One- or two drum designs Provides versatility of steam capacities,pressures and temperatures
A variety of furnace   configurations and   combustion technologies Accommodates a wide range of specified fuels
Proven steam drum   design Improved steam circulation provides quality steam for turbine or process applications; minimizes water level swings to accommodate rapid and wide load changes
Completely water-cooled furnace with gas-tight membrane construction Ease of maintenance (no furnace refractory),  maximum safety and faster installation
Spray attemperator for steam temperature control Allows steam temperature and pressure to be   maintained throughout a wider control range
Proven auxiliary   equipment Less downtime and maintenance costs and more efficient long-term operation
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Stirling Boiler Babcock Wilcox

Download the Stirling Boiler Brochure


Design features
Top- or mid-supported, one- or two-drum, single gas pass unit, pressurized or balanced draft operation, with membrane wall construction, furnace nose arch, and economizer and/or air heater for economical heat recovery.

Pulverized coal, oil, gas:
80,000 to 1,200,000 lb/h (10.1 to 151.2 kg/s)

Stoker coal:
60,000 to 400,000 lb/h (7.6 to 50.4 kg/s)

Stoker wood, bagasse, biomass:
80,000 to 900,000 lb/h (10.1 to 113.4 kg/s)

Steam pressure
One-Drum: To 2200 psig (15.2 MPa)
Two-Drum: To 1800 psig (12.4 MPa)

Steam temperature — To 1000F (538C)

Fuels — Solid, liquid or gaseous fuels such as pulverized and stoker coal, oil, natural gas, wood, bark, bagasse and other biomass, CO, blast furnace gas (BFG), coke oven gas (COG), and various other byproduct solid, liquid and gaseous fuels

Stirling Boilers Design & Capabilities

Two-Drum Stirling Boiler with Traveling Grate Firing Biomass and Pulverized Coal

Two-Drum Stirling Boiler Firing Liquid and Gaseous Fuels

Two-Drum Stirling Boiler for Incinerating Carbon Monoxide (CO) Off-Gas

Two-Drum Stirling Boiler for Stoker Coal and/or Biomass Firing