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An anaerobic digester (sealed, ID: 20 m) is used to produce renewable fuel from agricultural biomass. The head space pressure is maintained at 18.6 psi. A commercial steel pipe (20 cm) is connected to the bottom of the digester to remove the biofuel (y=2000 N/m³, vapor pressure 0.2 psi) generated at 0.034 m³/s. A centrifugal pump (Taco® Model 4007, 7.00 in, operated at 1760 rpm) will be used. Assuming the head loss in the pipe is 225 ft, which of the following elevation can the pump be located? HEAD IN FEET 75 60 45 Laco L/SEC 5 15 10 7.50"(191mm) 7.00"(178mm) 6.50"(165mm) 6.00 (152mm) 30 5.50"(140mm) 15 Model 4007 FI & CI Series 20 25 % % CURVES BASED ON CLEAR WATER WITH SPECIFIC GRAVITY OF 10 30 REQUIRED NPSH X 1760 RPM November 1, 2010 35 40 45 3HP (2.2KW) 83.5% Curve no. 2071 Min. Imp. Dia. 5.50" Size 5 X 4 X 7.0 50 55 60 82% 80% 77% 75% 5HP 75HP (5.6KW) (7 5KW) 10HP FEET 20 16 12 8 4 -0 15 5 NPSH L 60 HEAD IN METERS 64522 36 12 0 150 100 HEAD IN KILOPASCALS

An anaerobic digester (sealed, ID: 20 m) is used to produce renewable fuel from agricultural biomass. The head space pressure is maintained at 18.6 psi. A commercial steel pipe (20 cm) is connected to the bottom of the digester to remove the biofuel (y=2000 N/m³, vapor pressure 0.2 psi) generated at 0.034 m³/s. A centrifugal pump (Taco® Model 4007, 7.00 in, operated at 1760 rpm) will be used. Assuming the head loss in the pipe is 225 ft, which of the following elevation can the pump be located? HEAD IN FEET 75 60 45 Laco L/SEC 5 15 10 7.50"(191mm) 7.00"(178mm) 6.50"(165mm) 6.00 (152mm) 30 5.50"(140mm) 15 Model 4007 FI & CI Series 20 25 % % CURVES BASED ON CLEAR WATER WITH SPECIFIC GRAVITY OF 10 30 REQUIRED NPSH X 1760 RPM November 1, 2010 35 40 45 3HP (2.2KW) 83.5% Curve no. 2071 Min. Imp. Dia. 5.50" Size 5 X 4 X 7.0 50 55 60 82% 80% 77% 75% 5HP 75HP (5.6KW) (7 5KW) 10HP FEET 20 16 12 8 4 -0 15 5 NPSH L 60 HEAD IN METERS 64522 36 12 0 150 100 HEAD IN KILOPASCALS

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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An anaerobic digester (sealed, ID: 20 m) is used to produce renewable fuel from agricultural biomass. The head space pressure is maintained at 18.6 psi. A commercial steel pipe (20 cm) is connected to the bottom of the digester to remove the biofuel (y= 2000 N/m³, vapor pressure 0.2 psi) generated at 0.034 m³/s. A centrifugal pump (Taco® Model 4007, 7.00 in, operated at 1760 rpm) will be used. Assuming the head loss in the pipe is 225 ft, which of the following elevation can the pump be located? HEAD IN FEET 75 60 45 OO 15 Taco® L/SEC 5 0 7.50"(191mm) 6.00" (152mm). T I 30 5.50"(140mm) 0 7.00"(178mm) 6.50"(165mm) 10 O Both of these CURVES BASED ON CLEAR WATER WITH SPECIFIC GRAVITY OF 1.0 O Neither of these 15 125 Model 4007 FI & CI Series 20 25 O 30 ft below the liquid surface in the digester O 15 ft below the liquid surface in the digester 30 208 1760 RPM November 1, 2010 40 45 (2.2KW) 3HP 35 REQUIRED NPSH -82%1 80% LL 75%. 5HP (3 7KW) 250 375 500 625 FLOW IN GALLONS PER MINUTE Curve no. 2071 Min. Imp. Dia. 5.50" Size 5 X 4 X 7.0 50 55 60 750 65% (5.6KW) (7 5KW) 10HP 75HP 875 FEET 20 16 12 -8 -4 0 15 1000 NPSH HEAD IN METERS 0 -60 48 -36 -24 12 -0 150 100 HEAD IN KILOPASCALS
Transcribed Image Text:An anaerobic digester (sealed, ID: 20 m) is used to produce renewable fuel from agricultural biomass. The head space pressure is maintained at 18.6 psi. A commercial steel pipe (20 cm) is connected to the bottom of the digester to remove the biofuel (y= 2000 N/m³, vapor pressure 0.2 psi) generated at 0.034 m³/s. A centrifugal pump (Taco® Model 4007, 7.00 in, operated at 1760 rpm) will be used. Assuming the head loss in the pipe is 225 ft, which of the following elevation can the pump be located? HEAD IN FEET 75 60 45 OO 15 Taco® L/SEC 5 0 7.50"(191mm) 6.00" (152mm). T I 30 5.50"(140mm) 0 7.00"(178mm) 6.50"(165mm) 10 O Both of these CURVES BASED ON CLEAR WATER WITH SPECIFIC GRAVITY OF 1.0 O Neither of these 15 125 Model 4007 FI & CI Series 20 25 O 30 ft below the liquid surface in the digester O 15 ft below the liquid surface in the digester 30 208 1760 RPM November 1, 2010 40 45 (2.2KW) 3HP 35 REQUIRED NPSH -82%1 80% LL 75%. 5HP (3 7KW) 250 375 500 625 FLOW IN GALLONS PER MINUTE Curve no. 2071 Min. Imp. Dia. 5.50" Size 5 X 4 X 7.0 50 55 60 750 65% (5.6KW) (7 5KW) 10HP 75HP 875 FEET 20 16 12 -8 -4 0 15 1000 NPSH HEAD IN METERS 0 -60 48 -36 -24 12 -0 150 100 HEAD IN KILOPASCALS
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