alt.energy.renewable

Mike wrote:

> It's funny that some 30 years ago we spent many weeks in lectures and
> with our noses in books studying thermodynamics and often looking at
> PV diagrams for heat engines. Then some months later we came to test
> a real engine coupled to a test indicator and dynamometer. The graph
> roughly had the idealised shape that all the text books illustrated -
> by roughly I really mean very, very roughly, some might suspect that
> technical text book authors had never ever tested a real engine :)

Mike...

Can you tell me anything about the test set-up that allowed you
to see the real graph? Is there a way for me to use my
oscilloscope to watch what's going on in a prototype engine?

I didn't take thermodynamics, but I dimly recall studying gas
laws in HS. Now I'm wishing I had (or had time to do so now.)

--
Morris Dovey
DeSoto Solar
DeSoto, Iowa USA
http://www.iedu.com/DeSoto/