Reply To: Please help me do the math…

Forums Air Tanks, Pumps, Compressors, & Filters Please help me do the math… Reply To: Please help me do the math…

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kmd1984
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“BigTinBoat”

“ztirffritz”I’d think it would be more complicated than what you posted.  Since the pressure is in the source is changing the fill rate won’t be linear.  There’s probably a formula that would get close enough though.






I hope the expert does reply back to you. I worked it out using my “UN-complicated” method and based on using the 88CF tank starting at 4500psi and using it to fill a 215c bottle from 2000 to 3000psi each time. Below is the pressure remaining after each fill is taken from the main tank. Now this based on there being ZERO waste from bleeding the hose.
4500.00
4472.78
4445.57
4418.35
4391.14
4363.92
4336.71
4309.49
4282.28
4255.06
4227.85(after 10th)
4200.63
4173.42
4146.20
4118.99
4091.77
4064.56
4037.34
4010.13
3982.91
3955.70(after 20th)
3928.48
3901.27
3874.05
3846.84
3819.62
3792.41
3765.19
3737.97
3710.76
3683.54(after 30th)
3656.33
3629.11
3601.90
3574.68
3547.47
3520.25
3493.04
3465.82
3438.61
3411.39(after 40th)
3384.18
3356.96
3329.75
3302.53
3275.32
3248.10
3220.89
3193.67
3166.46
3139.24(after 50th)
3112.03
3084.81
3057.59
3030.38
3003.16 (after 55th)
2975.95 
As you can see after the 55th fill you will not have enough pressure to do a 56th fill and the pressure in both tanks would then equalize at 2975.95 My figure in the prior reply was 55.11 fills. As you should be able to see it is NOT any more complicated then what I posted.


Damn… : )