2.A new concept is proposed,under which by utilizing a proven simple-cycle marine gas turbine a type of intercooling-cycle high-power marine gas turbine has been derived.
3.Based on polytrophic process of air compression and isothermal gas combustion inside the turbine, an improved gas turbine with generality Carnot cycle is suggested.
4.To fully utilize the low temperature exergy of liquid hydrogen,installed additionally in a hydrogen energy based gas turbine cycle is an air precooler and hydrogen turbine.