Quote:
Originally Posted by dcb
ok, my incongruity alarm just went off.
how did we go from 89% theoretical max efficiency to %94-%97? Are you mixing energy storage back in already when I'm trying to isolate the variables?
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The 89% was wheel to accumulator and back to wheel. 3 steps including all compounding of losses.
Here is the EPA efficiency figures for the pump and motor. Not the same design, so I could not tell you my figures are absolute without testing of a functional prototype.
This is a wheel to wheel energy flow chart. I think its ten years old and the figures are averages over pump RPM ranges far higher than my setup would ever see unless the vehicle was going 180 MPH.
regards
Mech