Re: Emergency Power Generator

Posted by Bill Oakes on February 13, 2003 at 09:08:11 from (65.204.46.90):

In Reply to: Emergency Power Generator posted by Two Bit on February 13, 2003 at 06:06:11:

Hi Two-Bit,

I have a little different understanding of the physics involved.

Power equals force times speed. Force, when speaking of rotating loads is generally expressed as torque.

Your 3 to 1 ratio will mean you have 3 times the speed and 1/3 the torque, in the perfect world.

We live in a world, less than perfect, with things like friction and flow restrictions, which limit the efficiency of our machines to somewhat less than 100%.

In your case, you may have 20 hp in at 1200 rpm, and get 18 hp out at 3600 rpm. Only trying to express a principal, not trying to calculate you numbers for you.

If I am way off base someone will correct me.

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