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Dr J Dr J is offline
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Join Date: Apr 2008
Location: Miami
Posts: 663
Hello Chris

I think you accounted for the six injectors twice. The first time here:
150ml/min x6 inj = 900ml/min x 60 min = 54,000 ml/hr flow rate

based on this you find a flow rate of 87.76 lbs/hr but that is for all 6 injectors not per injector.

Then the second time here:
87.76 lbs/hr/injector, 6-injectors, 0.55 BSCF yields 766HP with injectors at 80% duty

150ml/min is 14.27 lbs/hr using the calculator on the website (since 1 ml = 1cc)
If I multiply by 6 injectors I get 85.62 lbs/hr which is near your answer of 87.76 lbs/hr.

If I use the calculator with the data:
14.27 lbs/hr, 6-injectors, 0.55 BSFC, I get 125 HP at 80% duty cycle.
If I trick the calculator to 100% duty cycle by entering 14.27 /0.8 = 17.84 lbs/hr then I get:
156 HP, which matches my calculation.

Still short...
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Last edited by Dr J; 01-17-2010 at 12:14 PM..
Old 01-17-2010, 12:12 PM
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