Capital Cost Estimates for Utility Scale Electricity Generating …
boilers, flue gas desulfurization scrubbers, cooling towers, steam turbine generators, 1 U.S. Energy Information Administration, Updated Capital Cost Estimates for Utility Scale Electricity Generating Plants 2013 2 The term "overnight" refers to the cost of the
Trevithick was the first to successfully use high-pressure steam (then known as "strong" steam). Until ca. 1800, the weakness of existing boilers coupled with the influence of James Watt had generally restricted steam boilers to very low pressures or "weak" steam.
Here is the equation to calculate unloaded steam cost: Where: • S C = steam cost, unloaded • a F = fuel cost in $/MMBtu • H g = enthalpy of steam, in Btu/lb. • h f = enthalpy of boiler feedwater in Btu/lb. • η B = true boiler efficiency (ASME PTC 4.1) • 1,000 = steam cost