Mars SoLoNOx: Lean Premix Combustion Technology in Production

Abstract

Solar Turbines has applied it’s SoLoNOx lean premix combustion technology to the Mars 100S (10.5 MW, 14,100 hp ISO) and Mars 90S (9.4 MW, 12600 hp ISO) gas turbine engines and now offers engines with guaranteed NOx and CO emissions less than 42 and 50 ppmv respectively and with near term expectations of offering NOx emissions below 25 ppmv when operating on natural gas fuels. The development has been ongoing since January 1990 and includes a field demonstrator engine which is running on a gas pipeline in the North West of USA. This paper introduces the basic design of the Mars SoLoNOx combustion system and presents some of the unique characteristics found with this lean premix technology during the program.