If all you want is constant rpm full load a mini turbine would be the way to go. You should get over 50% efficiency. The reason turbines are no good for cars is the need for good throttle response. Other than that, it would be the way to go.Abarth wrote:Yes 2 Stroke has problems in maintaining Lambda = 1 for proper three way catalyst function. OTOH, this issue can be overcome with lean operation and "storage catalysts" which store NOx, as they are already used.
But I see much more potential in a stationery operation at full load, constant rpm, in a rage extender use.
In a road car, charging constantly the batteries with say 40kW in an optimized operating point will yield a very good over all efficiency.
What is the mean power in todays F1 over a lap?
From https://en.wikipedia.org/wiki/Gas_turbine GE H series power generation gas turbine: in combined cycle configuration, this 480-megawatt unit has a rated thermal efficiency of 60%.