Rotational Compressor Valve
Group 18:Alejandro Castro
Sam LeutholdAndrew Borger
GE Sponsor: Todd HopwoodFaculty Advisor: Dr. Van Sciver
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OverviewApplicationProblem StatementProject ScopeFinal Design(Initial)Problems EncounteredFinal DesignCurrent ProgressTestingPotential IssuesModified 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 direct 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 replaced$2000 budget
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Final Design(initial)
Gas Flow
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Problems Encountered Machining of the threads on the outer
housing would have been overly complicated A separate threaded insert needed to be
designed Thickness of back plate needed to be
minimized to be easily milledPrototype materials have been changed from
production materials due to cost
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Final Design(Modified)
Gas Flow
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Current Progress(update)Final design changes have been made for
ease of machiningValve machining in progressMaterials for test rig in process of being
ordered: $438.43Materials for flow visualization have been
ordered: $243.67
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Test Rig
≈ 50 psi
≈ 50 psi
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Test Rig
≈ 50 psi
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Wind-Tunnel Smoke Wire TestA simplified acrylic model will allow flow
visualization through entire valve
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Potential IssuesValve does not completely openTest conditions are not the same as operating
conditionsThread and/or pin binding Machining tolerances
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Future ScopeMachining in progressParts for test rig being orderedTesting will follow for the remainder of the semesterDuring testing valve performance will be optimizedCollaboration with team 19 not likely
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Summary3-D prototype already implementedDesign slightly changed for machining
purposes Machining in progressParts for test rig currently being orderedTotal Budget: $2000Total spent: $879.86 Project is running slightly behind accepted
schedule due to machining difficulties
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Questions
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Bill of Materials
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Original Test Rig Design
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Calculations