rona
Uploaded by
6 SLIDES
221 VUES
80LIKES

Analysis of Flow Characteristics and Viscosities in Positive Displacement Pumps

DESCRIPTION

This detailed examination highlights the flow characteristics and viscosity measurements of fluids using positive displacement (PD) pumps. The viscosities are notably higher than water, with values reaching 109 cP, influencing flow rates from 2-10 L/min or 6-32 GPM as gauged by Reynolds number matching. Pressure loss varies between 20 psi to 50 psi. It concludes that PD pumps offer superior flow control over centrifugal pumps across varying pressures and high viscosities. Graphical data and pump selection details are also provided.

1 / 6

Télécharger la présentation

Analysis of Flow Characteristics and Viscosities in Positive Displacement Pumps

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

Playing audio...

  1. Flow Characteristics • Viscosity determined through index matching, (550 SSU, 109 cP, 0.109 Pa-s) • Much higher than water (1 cP) • Flow tested by Army is from 2-10 L/min • Using Reynolds number matching, 6-32 GPM • Pressure loss through system ranges from 20 psi to 50 psi • Calculated using Poiseuille flow

  2. Positive Displacement vs. Centrifugal Conclusion: PD pumps provided better flow control, regardless of pressure and handle high viscosities. Graph Credit: pumpschool.com

  3. PD Pump Selection Image Credit: Wikipedia; Info Credit: pumpscout.com

  4. 3 GPM 35 GPM 6 GPM 19 GPM 33 GPM Siewert, 1.6-16 GPM, $2,079 Siewert, 2.3-23 GPM, $2,189 Siewert, 3.2-32 GPM, $2,319 Emerick, 3.3-33 GPM, $2,754

  5. Siewert Emerick • Max flow rate: 33 GPM • Min flow rate: 3.3 GPM • Max Pressure: 200 psi • Speed Ratio: N/A • Price: $2,745 • Shipping not included • Lead time: 3-4 weeks • Max flow rate: 32 GPM • Min flow rate: 3.2 GPM • Max Pressure: 100 psi • Speed Ratio: 10:1 • Price: $2,319 • Shipping included • Installation Assistance • Lead time: 5-6 weeks

  6. Inhalation Pipe Schematic

More Related