Efficiency

At a glance:

Our nomogram illustrates initial reference values over savings potential during waste gas regeneration.

Reference values achieved with the nomogram (see below)

How does waste gas regeneration influence energy and, consequently, cost savings? Reliable figures are only obtained through investigation. However, the nomogram below can provide you with an initial overview. Please note that the basic values depend on the respective plant. Form an examination of the values for your installation, please contact our experts.

What does the level of efficiency depend on?

The efficiency of firing depends on the oxygen (O2) content in waste gas and the waste gas temperature. The level of efficiency can be discerned from the given O2 contingent and the waste gas temperature.

In our example, the reduction in the waste gas temperature from 1,000 °C to 200 °C (with regenerator) leads to an increase in efficiency which is greater than factor 2.

Nomogram efficiency level

Estimated fuel saving in gas and oil-fired systems

Fuel saving calculation example:

For same furnace output

Furnace with 2 vol. % O2 residue in waste gas,
1,100 °C interior temperature and cold air burner = 1,100 °C waste gas temperature,

hF = 45%

Furnace with 2 vol. % O2 residue in waste gas,

1,100 °C interior temperature and regenerator burner = 200 °C waste gas temperature, O2 = 2%,

hF = 91%