Beth Madsen Jessie Holderman Adam Oster Sponsor: 1.

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Technical Presentation on a Bladeless Slurry Pump

Beth MadsenJessie Holderman

Adam Oster

Sponsor:

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OutlineBackgroundInitial SpecificationsConstraints and DeliverablesConceptual DevelopmentFinal DesignManufacturingResults/ValidationConclusion/RecommendationsQuestions

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BackgroundA problem in the current loading process of the pilot filters is creating a

safety hazard to workers, costing Blue Water excessive money, and time.

Blue Water Technologies Inc. asked team Pump IT! to design an appropriate method to charge their BluePro pilot treatment filters.

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Initial Specifications

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Constraints DeliverablesDesign and prototype a

bladeless pump capable of pumping sand

•Fabricate a bladeless pump•Validate the pump’s efficacy•Produce head curves•Recommend further measures to scale pump as necessary

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Conceptual Development

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Final Design

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ManufacturingUsed Haas CNC Lathe and Mill for manufacturing of parts

with repetitive operationsMade use of the rapid prototype printer to produce complex

geometry of exit nozzle, and to produce last-minute simple parts

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Results/Validation

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Head Curves for a Bladeless Pump with 4.75 in. Discs at Several Speeds

Ns=2600 rpm Polynomial (Ns=2600 rpm )Ns=2200 rpmPolynomial (Ns=2200 rpm)Ns=1800 rpmPolynomial (Ns=1800 rpm)Ns=1000 rpm

Flow Rate [gpm]

Head [ft]

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Conclusions Recommendations

Pump is effective at moving slurries

Design is easy to manufacture

Streamline exit nozzle entrance with housing to reduce turbulent flow

Use more durable housing materials

Use a motor with at least 0.45 Hp to reach desired height

Reduce disc thickness to increase flow and reduce weight

Increase disc inlet area to increase flow and reduce frictional losses

Pumping slurry

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Questions

Source: http://www.co.sanmateo.ca.us/smc/department/dpw/home/0,,5562541_5562587,00.html

A big thanks to Blue Water Technologies Inc. for this exciting opportunity!