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.
Based on polytrophic process of air compression and isothermal gas combustion inside the turbine, an improved gas turbine with generality Carnot cycle is suggested.
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.
So the world's four main makers of gas turbines-GE of America, Siemens of Germany, Mitsubishi Heavy Industries of Japan and Alstom of France-are looking forward to a surge in new orders.
But that is just America: although historically it has represented 15-50% of world demand for utility-sized gas turbines, the growth of emerging economies means that it is now just 8%, reckons Bernstein.