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Vapor Extraction System Sample Calculations <br /> Moore Petroleum,Inc, 14800 W Frontage Road,Manteca,CA <br /> Effluent r flow rate cgiculations <br /> To calculate the stack flow rate of the RSI vapor extraction system, the manufacturer supplies the <br /> following equation <br />' exhaust flow rate RPM * i d <br /> 2 revolutions @1728 inches <br /> 3 <br /> ft 3 <br /> where, <br /> ' RPM _ engine operating revolutions per minute, 2400 RPM on 8-21-95 <br /> c i d engine displacement, 140 m3 <br /> e = efficiency factor, 0 75 (per manufacturers guidelines) <br /> ' Using flus information, the stack flow rate on August 21, 1995 is <br /> ' 2,400 RPM @140 c t d @D 75 exhaust flow rate � 73 SCFM <br /> 2 revolutions @1728 inches 3 <br /> {�t 3 <br /> J <br /> 1 <br /> 1 <br /> 1 <br />