Rotational Compressor Valve

Group 18:Alejandro Castro

Sam LeutholdAndrew Borger

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GE Sponsor: Todd HopwoodFaculty Advisor: Dr. Van Sciver

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OverviewApplicationCurrent ValvesProblem StatementProject ScopeConcept SelectionInterim DesignsFinal Design SelectionFinal DesignCurrent Progress Future ScopeSummary

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Application

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Current Valves

Valve Stop

Valve Shutter

Valve Seat

Valve Springs

Plate Valves Poppet Valves

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Problem StatementReciprocating compressors move large

volumes of natural gas Current compressor valves are reliable but

inefficientInefficiencies caused from indirect flow pathProject Goal: Obtain direct flow with a

rotational type valve

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Project ScopeMust operate in a rotational manner and obtain

laminar flowOperate at pressures between 30 psi and 600 psiMaterials must be able to withstand temperatures

approaching 350FModifiable to fit all current gas compressors used

by G.E.Is to be easily replacedThe valve is to outperform the volumetric flow rate

of the current plate and poppet valve2000$ budget

Concept Selection

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Housing Pitch RotationSame basic concept as Design 1Threaded outside housing plateSimple retaining bolt

Gas

FlowGas

Flow

Fixed outer casingRotating/translating center plateSplined and threaded center boltReturn spring

Inner Thread Rotation

Interim Designs

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Final Design Selection

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Final DesignTesting Parameters: Volumetric flow, temperature, and

pressure4 piece designMaterial selection

Gas

Flow

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Current ProgressParts have been ordered and ready for

pickup: 12”x 12” x 2” , 12” x 12” x 1” , 12” x 12” x ½” Steel plates

Machinist contacted for machining adviceFinal Design changes have been made for

ease of machiningTest rig currently being designed

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Future ScopeMachining is to begin next weekTest rig is to be constructed within machining

timeRigorous testing will follow for the remainder

of the semesterDuring testing valve performance will be

optimized

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Summary3-D prototype already implementedDesign slightly changed for machining

purposes Parts have been orderedMachining is to be started next weekTest rig currently being designedTotal Budget: $2000Total spent: $197.76 Project is running within accepted schedule

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Questions