Preliminary Computation on NOx Emission Reduction for Different Temperatures

Wet compression is an enhancing tool for power augmentation in land based gas turbine system. One of the advantages of wet compression is NOx reduction. High exhaust temperature (in the range of 1300 and 1400 K) from combustion chamber is responsible for NOx generation. High amount of NOx causes acid rain in the industrial area, which is a big concern. As wet compression reduces NOx emission, it is very important to validate this fact. Comparison needs to be made between the combustion of natural gas (methane mainly) with the combustion of same with air in reduced temperature with the presence of water vapor. As a preliminary step of this, NOx emission needs to be modelled with proper prediction of it in a natural gas combustion environment. As a preliminary study, a simple rectangular geometry is considered here. Result shows that NOx emission is reduced with lower temperature, which needs to be validated further.