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Steam cost by fuel, saturated and superheated steam tables, boiler efficiency and blowdown, condensate return and flash steam, failed steam traps and sizing of steam piping and pressure reducing valves.
Calculate steam cost per ton, fuel consumption and the savings from switching between gas, oil, propane and biomass, with payback and NPV.
Cost per ton, fuel use, wood, gas or oilSaturation temperature, enthalpy, latent heat, entropy and specific volume of saturated, wet and superheated steam from IAPWS-IF97, with a T-s diagram and a downloadable table.
Saturated, superheated, wetEstimate boiler efficiency from losses (O₂ and stack temperature), the minimum blowdown from TDS and the savings from combustion tuning, an economizer and blowdown heat recovery.
O₂, stack, blowdown, economizer, flashCalculate the flash steam fraction and the fuel, water and treatment savings from more condensate return, with payback and NPV.
Flash fraction, water, fuel, returnEstimate steam lost through traps failed open or leaking with Napier’s formula (DOE Steam Tip Sheet #1), the annual cost and the payback of a survey and replacement program.
Napier, lb/h lost, $ per year, paybackSize saturated or superheated steam lines by velocity and pressure drop (Darcy–Weisbach and Colebrook), and compute the pressure reducing valve Cv/Kv per IEC 60534 and the downstream pipe.
Line size, velocity, drop, PRV CvCompare the cost per useful MMBtu of wood, chips, bagasse, natural gas, propane, fuel oil and electricity, with biomass LHV by moisture (ISO 18125).
LHV by moisture, cost per useful MMBtuWork out how long a jacketed or coil-heated vessel takes to heat or cool a batch, with condensing steam or a fluid without phase change (hot water, thermal oil, tower or chilled water), using Kern’s equations; see heat, steam use, peak flow, cost per batch and per year and the temperature curve.
Jacket, coil, steam, timeConvert moisture between wet and dry basis, work out dry matter, final product and water evaporated, the heat load (solid, water and latent heat), fuel energy from the dryer efficiency or the drying air, the consumption of gas, propane, oil, wood, electricity or steam and the cost per ton.
Water evaporated, energy, cost/tCalculate heat loss from pipes and surfaces, outer surface temperature and the economic insulation thickness, with payback and NPV.
Heat loss, surface temperature, thicknessImportant notice: Indus Metrics tools produce estimates and pre-sizing results from the data you enter and from published engineering methods. They do not replace design, calculations or reports signed by a licensed professional engineer (PE), nor verification against the applicable codes, standards and regulations, such as OSHA rules and the ASME codes. Material and fuel properties vary: check manufacturer data or your own process analyses before deciding. By using this site you agree to the Terms of Use.
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