Software Tools

Excess Oxygen Ratio


Introduction: The challenges for the near future are the need for the development of new solutions for sustainable energy supply and increasing energy prices. The general tendency with increasing energy prices will continue because of an expected increase in energy consumption by 50% during the next 25 years.


Within this context the importance of rational use of energy is increasing from day to day. According to the actual energy prices the payback time for the implementation of the latest energy saving technologies has been cut by 50% during the last 3 years in many applications. In a lot of applications the excess air ratio is higher than necessary in order to achieve complete combustion. Too high excess air ratios carry a part of the energy out of the furnace and reduce the combustion efficiency.

Potential for energy saving in industry: By a reduction of excess air ratio an improvement of energy efficiency of 5 to 25% could be achieved at process heating equipment according a study of the US Department of Energy. The target of the European Commission is a 20% reduction of energy consumption until 2020 by an improvement of energy efficiency!


Software tool for the calculation of excess oxygen ratio: In order to estimate the excess oxygen ratio of combustion equipment FlammeConsulting has developed a software tool which calculates the excess oxygen ratio for different fuels. The program can be used for air fuel, oxygen enrichment of the combustion air and also for oxy fuel combustion. The oxygen ratio of the current situation can be calculated via the oxygen concentration in dry flue gas.




The software tool is dedicated to people in industry like plant managers, engineers and technicians from plant operating companies and consulting companies.


Please contact FlammeConsulting, if you want to have more information about the software tool and its possible applications. The cost for the software tool is 365 Euro plus VAT.





Energy and Combustion Technology

Dr. Michael Flamme

Kunstwerkerstraße 161

45136 Essen, Germany




Phone: +49-(0)201-8159265

Mobile: +49-(0)173-5171172