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Need BSFC
Posted by Alex [Email] (more from Alex) on Wed, 19 Dec 2001 11:26:16
In Reply to: Re: What's the formula for..., John delRosario, Wed, 19 Dec 2001 08:55:21
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You can't calculate the airflow without knowing the BSFC of the engine.
If you know the BSFC, then:
n = (hp * BSFC * Air/Fuel Ratio) / 60
With n being your airflow in Lbs/min. For example:
n = (200 * 0.52 * 11.5) / 60
n = 19.9333 Lbs/min
To convert that to CFM:
V = n / (29P / 10.73t)
Where V = volumetric flow in CFM
P = Pressure in PSI absolute (gauge + atmospheric)
t = Temperature in degrees Rankine (deg F + 460)
This is NOT exact. This is for estimation purposes only.
posted by 152.113.19.1...
Posts in this Thread:
- What's the formula for..., Jeff Cunningham, Wed, 19 Dec 2001 07:43:03
- spearco a/l, Kevin K , Wed, 19 Dec 2001 15:03:15
- Pressure Drop, Alex, Wed, 19 Dec 2001 13:42:37
- Re: What's the formula for..., Kevin K , Wed, 19 Dec 2001 10:13:38
- Re: What's the formula for..., John delRosario, Wed, 19 Dec 2001 08:55:21
- Need BSFC, Alex, Wed, 19 Dec 2001 11:26:16 <-- Viewing This Message
- Re: What's the formula for..., Shaun , Wed, 19 Dec 2001 08:26:49
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