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snowman
03-08-2006, 02:54 PM
http://www.stirling-tech.com/stirling/operatio.htm

Why do they pressurize everything?

SGW
03-08-2006, 03:15 PM
To increase the power output.

snowman
03-08-2006, 03:36 PM
my god, it's like talkin to my inlaws.

can i see the butter?

"SEEEEE"

Please hand me the butter before I spread your eyeball on my bread?
http://bbs.homeshopmachinist.net//smile.gif
So...anyway, why does pressurizing the engine create a greater power output?

-Jacob

[This message has been edited by snowman (edited 03-08-2006).]

GM69camaro
03-08-2006, 05:46 PM
My book about stirling engines has a short section on pressurization. It says that by increasing the internal pressure, the expansion/contraction ratio of the heating and cooling cycles is increased which increases the power output. The hard part is keeping it presurized a/c leaks. Hope that answers your question.

Gordon

Evan
03-08-2006, 05:52 PM
The gas is the working fluid. The higher the pressure the higher the density of the gas and therefor the higher the heat capacity per unit volume of gas.

snowman
03-08-2006, 06:01 PM
damn...I should have known that.

can ya tell that i work in a tax office? I'm getting dumber by the minute!