The calorific value of biogas is usually expressed in joules per cubic meter (J/m?) or kilojoules per cubic meter (kJ/m?). The calorific value represents the thermal energy generated during complete combustion.
The power generation efficiency of a generator set refers to the proportion of biogas converted into electricity, usually expressed as a percentage.
Therefore, the specific calculation formula for how many kilowatt hours of electricity can be generated by one party's biogas is as follows:
The electrical energy generated by a unit of biogas=the calorific value of biogas x the power generation efficiency of the generator set genset.
It should be noted that the calorific value of biogas and the power generation efficiency of the generator set may vary depending on specific circumstances, as well as factors such as the composition and quality of biogas. Generally speaking, the calorific value of biogas is between 20-30MJ/m? And the power generation efficiency of the generator set can reach between 35% and 45%.
For a hypothetical example, if the calorific value of biogas is 25MJ/m?, The power generation efficiency of the generator set is 40%, so the calculation of the electrical energy that one party of biogas can generate is as follows:
The electrical energy generated by unit biogas is 25 MJ/m? 40%=10 MJ/m?
In order to convert it into kilowatt hours of electricity, we need to divide the electrical energy generated by a unit of biogas by the energy contained in 1 kilowatt hour (kWh) (3.6 x 10 ^ 6 joules):
The number of kilowatt hours of electricity that can be generated by one unit of biogas=the electrical energy generated by one unit of biogas ÷ 3.6 x 10 ^ 6 joules/kWh
= 10 MJ/m? ÷ 3.6×10^6joule/kWh
≈ 0.00278 kWh/m?
Therefore, approximately 0.00278 kWh of electricity can be generated per cubic meter of biogas. Please note that this is only an example calculation, and the actual situation may depend on more specific parameters and conditions.