Abstract

Numerical simulation of a complete gas turbine engine working with inlet cooling of water injection has been evaluated using computational fluid dynamic (CFD), the influence of water droplet and injection rate on the compressor operation, engine combustion and the turbine were studied. The results obtained in contrast with dry compression unveil that, with minimum amount of water droplet and high water injection rate (below 3.0%), water injection at the compressor inlet has potential influence on the engine performances, it boost the amount of inlet mass flow rate, raises compression and expansion pressure ratio, which remarkably uplift the thermal efficiency of the system. Moreover, water droplets brought about decrease in the relative specific fuel consumption, outlet temperature as well as cuts down the amount of NOx production.

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