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Rs 1.23 / kg
- Now, cost of steam = Heat content in steam in kcal/kg X Fuel price / (GCV of fuel in kcal/kg X Boiler efficiency ⴖb) = 830.43 X 5000 / (4500 X 0.75) = 1230.26 rupees / MT of steam or Rs 1.23 / kg of steam
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In most companies, the reported cost of steam is the average cost of generation at a particular production rate. The total operating costs—fuel, power, water, chemical additives, labor, maintenance, depreciation, interest, and administrative overheads—are divided by the total amount of steam produced.
Steam cost increases as the Boiler efficiency decreases & vice versa; Understanding with examples. 1.Calculate the cost of steam per kg, which is been using for Steam turbine having pressure 121 kg/cm2 & temperature 550 deg C.The boiler of efficiency 75% uses coal of GCV 4200 kcal/kg to produce this steam.Cosnsider the price of coal is Rs 5000/MT
Online calculator to quickly determine Steam Unit Cost. Includes 53 different calculations. Equations displayed for easy reference.
The cost of steam is mainly coming from the cost of fuel, however there are many other costs to be considered (cost of raw water, treatment of feedwater, pumping/fan power, sewer charges, environmental costs, maintenance and labor...).
• Determine your annual fuel costs based on utility bills. • Install a steam flowmeter in your facility and calculate your steam generation cost. Compare this with the benchmark value. • Using a systems approach, do a thermoeconomic analysis to determine the effective cost of steam. (See sidebar: Effective Cost of Steam)
These may vary. Actual figures may vary depending on condensate return rates, flash steam recovery, and any other similar equipment. Labour and maintenance costs are not included. Figures calculated are of a simple theoretical nature and other variables may need to be considered depending on application.
Jun 15, 2017 · Using the new COPs, the energy consumption can be calculated using equation (2). The necessary energy to generate 1 kg of steam is reduced by 13% (now 1608 kJ) for a waste heat temperature of 30 °C and by 60% for 80 °C (now 731 kJ).
