Hinckley C

[JAParticipant @ja]

Posted by not done it yet on 13/07/2022 09:04:56:

Posted by JA on 12/07/2022 18:45:54:

CCGT with a thermal efficiency of 60% – just look who is claiming it. 20 years ago a near similar cycle with modern materials, high pressures and an HP turbine entry temperature of around 1800K I remember gave a value of 40%. For comparison, the last generation CEGB coal fired power stations were about 30%.

And I know what entropy is. It is anything but an obscure physical problem. It is a major reality in all our lives.

JA

Edited By JA on 12/07/2022 18:48:47

Are you suggesting someone is making false claims re efficiency? Lying, even?

Of course not. It is business.

 

JA

 

Edited By JasonB on 13/07/2022 19:54:49

[duncan webster 1Participant @duncanwebster1]

CCGT stands for combined cycle gas turbine, it isn't a closed cycle, there is still hot exhaust gas and cooling towers.

The best coal fired stations were ~40%,CCGT are ~60%. I'm prepared to believe these figures but then I don't line my hat with tinfoil

[Author]

Posts