Influence of wet compression on operating performance and exhausts of turbojet engine

Gas turbines are generally believe to be one of the most predominant internal combustion engines in the worlds energy and transportation while, wet compression systems raise the power output by reducing compressor work through decrement of compressor inlet air temperature. In this paper, wet compression and it influence on the operating performance and exhausts of turbojet engine is studied using computational fluid dynamic software, high inlet temperature and low relative humidity were kept constant at the inlet of turbojet engine while nozzles diameter and injection rate of water droplet were varied accordingly. From the results, there is comparatively drop in outlet temperature of the third stage compressor, increase in specific heat capacity, increase of compression and turbine ratio by an average of 6.0 percent, boost engine thrust by 13.48 percent, reduces NOx by more than 50 percent and minimized liquid trap ratio to 0.92 percent with 5 micron of water droplet. On the contrary, wet compression increases CO formation and brought minimal deviation in the relative balance of mass flow rate of compressor inlet and turbine output.