What is a turbo-gas power plant?

Question

What is a turbo-gas power plant?

Answer 1

It's an energy production system composed of a gas turbine and a steam turbine.

Scheme:

gas  ---->  gas turbine (energy production, efficiency: about 40%)  ----> exhaust gases(temperature: about 600°C) ----> steam turbine (energy production, efficiency: about 35%).

Total efficiency: around 60%

It's important to realize that a ship can already run on ammonia (hydrogen...)  using turbo-gas as propulsion system.

Scheme:

ammonia(21000 kj/kg) ----> hydrogen ----> turgo-gas system(efficiency: 60%).

It's a diesel with an efficiency of about 30%...

Answer 2

On the ship where I work the exhaust gasses turn a turbo which pumps more air into the burn chamber so the fuel burns hotter and more completely.

Answer 3

It's a combined gas and steam turbine.

A gas turbine produces energy from gas, while the generated exhaust gases are used to produce additional energy via a steam turbine.

Individually the gas turbine efficiency is only about 35-40%.

The steam turbine raises the total efficiency to about 60%.

It's the best efficiency...

Surely hydrogen is the best fuel for this system...