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Ir <br /> J A I J J,l <br /> INDUSTRIES, INC. <br /> Y- <br /> CALCULATIONS FOR DIRECT FIRED OXIDIZER MANUFACTURED BY <br /> STEALTH INDUSTRIES INCORPORATED <br />' THE 250 CFM DIRECT <br />' EIRED THERMAL OXIDIZER <br />' 1. TOTAL MASS FLOW RATE OF CONTAMINATED AIR <br /> (250 CFM) (60 MINUTES) = 15, 000 SCFH <br />' - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - = 1, 145 LB/HR <br /> 1.3 1 CUBIC FEET OF AIR PER POUND <br /> 2. TOTAL HEAT REQUIREMENT TO RAISE AIR TEMPERATURE <br /> EN'T'HALPY OF GAS AT 1400 DEGREES 341. 5 BTU/LB <br /> ENTHALPY OF GAS AT 70 DEGREES 9 . 0 B'T'U/LB <br /> TOTAL BTU PER LB TO RAISE AIR TEMP. 332 5 BTU/LB <br /> TOTAL BTU REQUIRED TO RAISE TEM _ 380, 712 5 Q BTU <br /> LOSS OF HEAT DUE TO COWECTION 40 , 000 . 00 BTU <br /> TOTAL HEAT REQUIREMENT 420, 712 BTU/HR <br /> 3 . TOTAL VOLUME OF NATURAL GAS FOR OXIDIZER <br /> TOTAL HEAT REQUIREMENT 420, 712 50 BTU <br /> BTU PER CUBIC FOOT OF NATURAL GAS - 670 00 BTU/CF <br /> TOTAL CUBIC FEET OF NATURAL GAS = 627 . 90 SC-FH <br /> TOTAL BTU USAGE OF OXIDIZER = 627, 900 BTU/HR <br /> 4. VOLO RATE OF COMBUSTION AT 1400 DEGREES <br /> I <br /> 62 <br /> ( $ SCFH) (11 .45) (1, 400 + 460) = 13, 374, 51.6 <br /> - - - - - - - - - <br /> - - - - - - - - - - - - - - - - - - - - - - - - - - - - = 7. 14 CF/SEC <br /> (3600) (60 + 460) 1, 872, 000 <br /> 3530 E. Enterprise Drive, Anaheim, CA 92807-1628 <br /> Itel: (7'14) 632-1112 or (800) 632-1112 - fax (714) 632-'1177 <br />