|
I have some old reference books around, with a large selection of boiler styles for steam engines. They all specify either ten or twelve square feet of boiling area per HP. That's with ideal temperatures. Heat recovery schemes would need even larger hardware. To run a nicely refined, efficient steam engine you need most of the bits used in the Doble steam car. It was able to compete with the gas buggies in refinement and ease of use, but was very expensive. It is hardly worth the price of another complex engine for a few percent savings.
|