How is the fuel consumption of a 10 ton oil boiler calculated?

Question details (performance) :

How to calculate the fuel consumption of a 10 ton oil-fired boiler, first of all, we need to understand the types of 10 ton oil-fired boilers, mainly divided into: WNS series condensing horizontal internal combustion boiler, SZS series condensing double-drum vertical boiler.

Technical parameters of 10 tons of WNS series condensing horizontal internal combustion oil boiler:

Boiler model: WNS7

Rated thermal power: 7 MW

Rated water pressure: 1.0mpa, 1.25mpa

Rated water temperature: 95 degrees

Inlet water temperature: 75 degrees

Circulating water volume: 240 tons

Design heat rate: ≥95%

Combustion mode: micro-positive pressure chamber combustion

Applicable fuel: light oil / natural gas

Fuel consumption: 618Kg / h (light oil)

Natural gas: 746Nm3/h

Gas supply pressure: 1500-3000

Use power: 380V/50Hz

Shipping weight: 23 tons

Shipping size: 6300*2800*3250mm

Dimensions: 10200*3200*4150mm

General formula for oil consumption per hour of oil-fired boilers: 3600* thermal power / fuel calorific value / boiler thermal efficiency

Taking a 10 ton oil-fired boiler as an example, its thermal power is 7 MW. Assuming that the combustion heat value of an oil-based fuel is 42 Mj/kg and the boiler fuel efficiency is 95%, it can be concluded that a 10-ton boiler requires fuel consumption per hour = 3600. *7/42/0.95, about 630kg.