Abstract
Performance improvement of micro gas turbine (MGT) by mist cooling was examined. Mist was injected at the compressor entrance, and the rotational speed was change. Gas turbine out put was calculated from the compressor inlet and outlet temperatures and the turbine inlet and outlet temperatures. The performance of the MGT was calculated by the simulation, where the mist flow rate and the air-fuel mixture ratio were changed. The calculation showed that mist did not evaporate completely at the experiment. However, it was demonstrated that mist is very effective for cooling of the compressor and the turbine. Mist has decreased the compressor input. Then, the output of MGT has increased.
