Quote:
Originally Posted by stovie
I saw this show on tv where they were talking about compressed air cars possibly coming to America in a couple years. They had a 1litre engine that could go 800-1000 miles on a full tank of air. The tank had 3500 cubic feet of air compressed down to 890psi. What I'm trying to do is run half my cylinders off of compressed air to hopefully allow better fuel economy(half the cylinders running on compressed air=less fuel burned), allow for easier eoc, and possibly more torque down low. I want to get a compressor that runs to 500psi(I know I said 400psi earlier but I just found out it was upgraded), and also put four 6 inch diameter by 54 inch long storage tanks under the jeep. I'm in construction so ill always have it plugged in at the job. I'm also planning on having the pressure constant so say I have 15 psi on my 3.88 inch pistons, that's a constant down force of 58.2 pounds is it not?? And if I remember correctly at 15 psi 450 psi equals 30 times the air
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Brake Mean Effective Pressure (BMEP). With some manipulation you can calculate an approximate power output for a constant pressure above your pistons.
Here is a good discussion that uses algebraic manipulation rather than the standard calculus based derivation.
Brake Mean Effective Pressure (BMEP): The Performance Yardstick