1 / 11

#5 Pump System Design

#5 Pump System Design. This PP is annotated (with a pointer) and narrated (using PP versions 2007 and later). The speaker icon on each slide indicates this capability.

zaina
Télécharger la présentation

#5 Pump System Design

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. #5 Pump System Design • This PP is annotated (with a pointer) and narrated (using PP versions 2007 and later). The speaker icon on each slide indicates this capability. • The narration and annotation functions on your computer must be turned on before you can hear the narration and see the pointer. • The annotation and narration can be turned on by going to the “slide show” tab and clicking the three boxes shown below. • Then click on the “start slide show” (either from beginning or from a current slide) to start the lecture. • You can replay slides individually or let them run through sequentially. • DON’T HAVE PP? You can download a MS 2010 PP reader that allows you to view this PP on any operating system: • http://blogs.office.com/b/microsoft-powerpoint/archive/2010/05/13/powerpoint-viewer-available-for-download.aspx

  2. #5 Pump System Design Steve Hubbs March 2014

  3. Static Water Level ~140’ SYSTEM HEAD = 140’

  4. Pressure gauge reads: (140’-15’)/2.31 = 54 psi Static Water Level ~140’ Pump pressure = 54 psi Pump OFF ~15’ SYSTEM STATIC HEAD = 140’

  5. Hydraulic Grade Line @ 150 gpm 42’ L = total line length (3000 feet) c= roughness of pipe wall (140 for PVC) q= flow through the pipe (150 gpm) dh = pipe diameter (4 inches) Static Water Level ~140’ Pump pressure = 72 psi Pump ON 150 gpm 20’ Pressure gauge reads: (187’-20’)/2.31 = 72 psi 5’ SYSTEM HEAD = 42+140+5= 187’

  6. Hydraulic Grade Line @ 250 gpm 109’ L = total line length (3000 feet) c= roughness of pipe wall (140 for PVC) q= flow through the pipe (250 gpm) dh = pipe diameter (4 inches) Static Water Level ~140’ Pump pressure = 101 psi Pump ON 250 gpm 25’ Pressure gauge reads: (259’-25’)/2.31 = 101 psi 10’ SYSTEM HEAD=109+140+10 = 259’

  7. SANTIAGO NEW WELL-15 HP Line length = 3000’

  8. Hydraulic Grade Line @ 175 gpm 56’ L = total line length (3000 feet) c= roughness of pipe wall (140 for PVC) q= flow through the pipe (175 gpm) dh = pipe diameter (4 inches) Static Water Level ~150’ f = 0.002083 (100/c)1.852 q1.852/dh4.8655 Pressure gauge reads: (226’-45’)/2.31 = 78 psi Hf = 56’ Pump ON ~15’ NEW SANTIAGO WELL 4 inch Supply Line System Head = 236’ ~30’

  9. Hydraulic Grade Line @ 240 gpm 13’ L = total line length (3000 feet) c= roughness of pipe wall (140 for PVC) q= flow through the pipe (240 gpm) dh = pipe diameter (6 inches) Static Water Level ~150’ f = 0.002083 (100/c)1.852 q1.852/dh4.8655 Pressure gauge reads: (196’-48’)/2.31 = 64 psi Hf = 13’ Pump ON ~15’ NEW SANTIAGO WELL 6 inch Supply Line System Head = 196’ ~33’

  10. REFERENCES • Pump Motor and Head Loss calculations • Total pumping head (system performance curve) • Hazen-Williams formulas • http://www.engineeringtoolbox.com/hazen-williams-water-d_797.html • Add ~10% for fittingsor calculate separately if pipe is long and fittings are few. • System Curves and Pump Performance Curves (from Engineering in a Box) • http://www.engineeringtoolbox.com/pump-system-curves-d_635.html • Motor horsepower needed • Sizing the motor: http://www.engineeringtoolbox.com/pumps-power-d_505.html • Pump Efficiency (typically 60% efficient, so make sure to include in motor sizing. • http://www.engineeringtoolbox.com/best-efficiency-point-bep-d_311.html • Send comments and corrections to: stevehubbs@bellsouth.net

More Related