Question

What are fossil fuels? What is a calorific value of a fuel?​

Answer 1

Answer:

Also referred to as energy or calorific value, heat value is a measure of a fuel's energy density, and is expressed in energy (joules) per specified amount (e.g. kilograms).

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Answer 2

Explanation:

The calorific value of a fuel is the quantity of heat produced by its combustion – at constant pressure and under “normal” (standard) conditions (i.e. to 0oC and under a pressure of 1,013 mbar).

Fuel oil: 9520 kcal/kg

Brown coal: 3500 kcal/kg

Natural gas: 12500 kcal/kg

Disel: 10000 kcal/kg