Course description
This annual short course, now in its sixteenth year, is updated for each delivery with the latest publications on low NOx gas turbines.
Gas turbines are a major source of new electricity generating plans, but they have to meet severe NOx and CO emissions legislation in many countries. This course will address the technology options for industrial gas turbines necessary to meet 25ppm NOx regulations on liquid fuels and for
For aero-gas turbines NOx reduction is becoming more important and future designs are following the design procedures of lean low NOx combustion from the industrial sector. However, the inlet temperature to the combustor is about 1000K with pressures of 60 bar at take off and this creates severe problems for NOx control. As only liquid fuels are viable for aero gas turbines the problem of fuel atomisation and auto ignition in premix ducts will be discussed.
The principles of low NOx designs are the same for all the applications of gas turbines and this course draws on information from the various gas turbine fields of aero, industrial and automotive as the cross fertilisation of ideas between the various areas is an important part of low NOx technology development. Each application area has its own specific problems which will be discussed on the course.
A common problem with low NOx gas turbines is that of acoustic resonance. Solutions to this problem are overviewed based on industrial combustor modifications that have been found to cure the problem.
Intended audience
- Combustion designers in gas turbine manufacturers
- Operators of modern, low NOx electrical generation systems, including combined cycles
- Environmental legislators
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