To properly supply a burner, we must know how much natural gas it requires at its maximum power.
Basic relationship
In simplified form, the required flow rate is obtained by dividing the thermal power by the calorific value of the natural gas, adjusted according to efficiency and reference conditions.
Logic example
A larger burner requires a higher flow rate. If the piping or the meter cannot provide it, a pressure drop under load will occur.
Why nominal diameter is not enough
The network capacity also depends on the length, pressure, number of fittings, and the simultaneous operation of other consumers.
Practical use
The flow rate calculation is the first step for the proper selection of the meter, regulator, and piping.
