Known engine attribute repository?

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Posts: 3
Joined: Tue Dec 01, 2009 5:04 am
First Name: Shannon
Last Name: Key

Known engine attribute repository?

Post by shannonkeyannon »

Hi Guys and Girls,

I am interested in the physical properties of engines with known power output. If you have plans you are
willing to upload I am happy to work it out for myself. Can anybody fill in the following for a particular engine?

type: (Alpha, beta, other-describe)
Power output (mechanical at shaft):
Hot side temp:
Cold side temp:
Power piston displacement or swept volume:

Power Piston diameter:
Power Piston stroke:

working volume (volume in which working gas is heated and cooled:

At top of Heating Cycle (i.e. for alpha engine this would be internal displacer wall surface area when
displacer retracted to expose working gas to hot wall)

Heating surface area to volume ratio:

At top of cooling cycle (prob symetrical with hot SA as above.)

cooling surface area to volume ratio:

Total volume (Working volume + dead volume + power piston displacement):
Mean pressure:
Further comments such as number of pistons and their configuration:

I think a few have touched on it already, but I am trying to build up profiles which involve more detail than
hot side/cold side evaluations. Hopefully this might become a useful repository for myself and others to compare
different engines and perhaps expose inefficiencies in their design.

Many kind regards,
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