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How to Calculate the Steam Boiler Operation Cost

Calculation Formula:

Fuel Consumption=The Power of Boiler/(Boiler Efficiency*Calorific Value of The Fuel)

Unit Conversion Reference:

1T/h≈600,000Kcal/h≈700KW

1KJ≈0.239Kcal

Reference for The Calorific Values of Common Fuel: (ZOZEN Boiler Calculation Basis)

1. Coal: 27170KJ/kg (≈6493.63Kcal/kg)

2. Biomass: 16800KJ/kg (≈4015.2Kcal/kg)

3. Natural Gas: 37600KJ/Nm³(≈8986.4Kcal/Nm³)

4. Diesel: 45980KJ/kg (≈10989.22Kcal/kg)

5. LPG: 98500KJ/Nm³(≈23541.5Kcal/Nm³)

6. Heavy Oil: 46100KJ/kg (≈11017.9Kcal/kg)

7. Wood: 15800KJ/kg (≈3776.2Kcal/kg)

For example, if you want to buy a 4Ton/h steam boiler, then the fuel consumption is as follows:

For chain grate coal fired steam boiler:

coal consumption=(4*600,000Kcal/h)/(82.3%*6493.63Kcal/kg)≈450kg/h;

operation cost=unit price of local coal*coal consumption

For chain grate biomass fired steam boiler:

biomass consumption=(4*600,000Kcal/h)/(82.3%*4015.2Kcal/kg)≈726kg/h;

operation cost=unit price of local biomass*biomass consumption

For gas fired steam boiler:

natural gas consumption=(4*600,000Kcal/h)/(92.6%*8986.4Kcal/Nm³)≈289Nm³/h;

operation cost=unit price of local natural gas*natural gas consumption

For diesel fired steam boiler:

diesel consumption=(4*600,000Kcal/h)/(92.6%*10989.22Kcal/kg)≈236kg/h;

operation cost=unit price of local diesel*diesel consumption

For LPG fired steam boiler:

LPG consumption=(4*600,000Kcal/h)/(92.6%*23541.5Kcal/Nm³)≈110Nm³/h;

operation cost=unit price of local LPG*LPG consumption

For heavy oil fired steam boiler:

heavy oil consumption= (4*600,000Kcal/h)/(92.6%*11017.9Kcal/kg)≈235kg/h;

operation cost=unit price of local heavy oi*heavy oi consumption

For fixed grate wood fired steam boiler:

wood consumption=(4*600,000Kcal/h)/(81.6%*3776.2Kcal/kg)≈779kg/h;

operation cost=unit price of local wood*wood consumption

ZOZEN helps you to calculate the total operation cost according to different kinds of boiler types and different kinds of fuel, and provides cost effective boiler and accessories to you. Let’s start to learn the calculation!

How to Calculate the Steam Boiler Operation Cost

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