Hi, I am trying to calculate the SCFM for a compressor used for pneumatic filling of chemical tanks. • I know that there is 15 psi of losses in the line from the truck to the tank, the max pressure is 25-30 psi and that the desired flowrate of the chemical is 180 gpm. I initially thought the volume of air would be the same as the volume of chemical transferred and just did a conversion from gpm of air to SCFM, but the answer I got seemed unreasonably small (~40 SCFM). Then I was thinking perhaps the calculation would be based on mass flowrate instead, but I didn’t reach an answer with my calculations. Can anyone help me out with the calculations here? Apologize if this is a relatively basic question, I am a junior wastewater process engineer and don’t have experience with pneumatic filling. If this isn't the correct place on this forum could someone point me to where I should post the question? thank you.
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