As an engineer the assertion by the speaker that gas turbines have reached their Carnot limit seemed a bit off. I checked and the typical efficiency of a gas turbine is a whopping 37% to 40%. However the actual Carnot limit is around 51%. while there may be diminishing returns on future engine enhancements, it would be untrue to state that gas engines have in fact reached a physics based roadblock of their Carnot limit.
As an engineer the assertion by the speaker that gas turbines have reached their Carnot limit seemed a bit off. I checked and the typical efficiency of a gas turbine is a whopping 37% to 40%. However the actual Carnot limit is around 51%. while there may be diminishing returns on future engine enhancements, it would be untrue to state that gas engines have in fact reached a physics based roadblock of their Carnot limit.