Garlock Expansion Joint (MSDI-P1367)

GARLOCK EXPANSION JOINT (MSDI-P1367)Systems Design Review

January 11th, 2013

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P13671 Members

Left to Right:

Allison Feinberg (Member)

Sam Kulpinski (Member)

Don Thompson (Member)

Wayne Evans (Customer)

Elspeth Ochs (Member)

Joe Harkins (Team Lead)

Danny McCormick (Member)

Dr. Jason Kolodziej (Faculty)

Friday, January 11, 2013 P13671 - Garlock Expansion Joint

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Customer Needs

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Project Specifications

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House of Quality

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Risk Assessment

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ID Risk Item Effect Cause Severity Likelihood Importance Action to Minimize Risk Owner

1 Project scope too large Project not completed in time Project improperly scoped 3 2 3Project scope discussed with

customer week 1Team Lead

2 Parts ordered too late Test rig can't be built on timeLong lead times not properly identified and accounted for

2 2 3Long lead time parts identified

and ordered by Week 6 of MSD ITeam Lead

3 Unsafe failure mode Potential burns to operator Improper safety precautions 3 1 3Ensure proper safety measures

around rigStructual Engineer

4 Poor team work ethicWork not done on time or

properlyPersonality conflicts, personal life conflicts

2 1 2Ensure constant communication

between team members with regards to personal conflicts

Team Lead

5Uneven distribution of temperature within EJ

Customer unsatisfied with product

Improper simulation of fluid flow within EJ

1 3 1Use CFD simulation to better

understand flow within EJFluid/Thermal

System Engineer

6 Failure of actuation methodUnable to satisfy customer

requirements Improper design of actuation

method1 2 2

Use FEM to model stresses in components and ensure proper usage of equipment to ensure

reliable operation

Actuation Method Engineer

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Functional Decomposition

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SYSTEM OVERVIEW

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System Functions• Major Subsystem Components:

• Fluid• Tank, Tubing & Piping • Pump• Heating Components• Actuation & EJ Mount

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System Overview

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SYSTEM FLUID

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PEW Chart

Fluid Concepts  

Selection CriteriaDynalene

LO170Dynalene

HCDynalene

SFParatherm MR

(Reference)Dowtherm

G Corn oil Canola oil

Max optimal Temp - - + 0 + - -

Cost - - - 0 + + +

Viscosity at 350 deg + 0 - 0 - - -

Availability 0 0 0 0 0 + +

Safety 0 0 0 0 0 0 0

Thermal Conductivity + - 0 0 + - -

Sum + 's 2 0 1 0 3 2 2

Sum 0's 2 3 3 6 2 1 1

Sum -'s 2 3 2 0 1 3 3

Net Score 0 -3 -1 0 2 -1 -1

Rank 2 7 4 2 1 4 4

Continue? No No No No Yes No No

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Preliminary Fluid Selection

•Dowtherm G

• Temperature Range – 20°F - 675°F• Cost – Unknown (Dr. Kandlikar said less than

$5/gal)• Availability – Needs to be ordered (awaiting

response from supplier)• Low viscosity• Low Thermal Conductivity• Non-Toxic

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TANK, TUBING & PIPING

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PEW Chart - Tank

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PEW Chart – Tank Insulation

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Preliminary Selections

•High Temp Fiberglass + Rigid Foam

• Enables high temperature fiberglass to be on the hot surface of the tank

• Have cheaper foam to add extra insulation and prevent unwanted heat loss

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PUMP SELECTION

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PEW Chart

Friday, January 11, 2013 P13671 - Garlock Expansion Joint

Pump Concepts

Max Temp >450F - - 0 0 0Max Pressure - - - 0 +Flow Rate 0 - + 0 +Fluid Compatibility 0 0 0 0 0Cost - 0 0 0 -Availability 0 0 0 0 0Size of pump 0 0 - 0 -Motor Required - 0 - 0 -Sum + 's 0.00 0.00 1.00 0.00 2.00Sum 0's 4.00 5.00 4.00 8.00 3.00Sum -'s 4 3 3 0 3Net Score -4.00 -3.00 -2.00 0.00 -1.00Rank 5 4 3 1 2

Selection Criteria Submersible Lobe VaneGear

(Reference)Impeller

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Preliminary Pump Selection

•Gear Pump• Maximum temperature up to 500°F

• Maximum Pressures 250 to 500 PSI

• Maximum Flow rates from 20 to 120 GPM

• Fluid Compatible

• Small foot print (approximately 1ft3 before motor)

• Maximum 1800RPM

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HEATING COMPONENTS

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PEW Chart

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Preliminary Selection

•Cartridge Heaters

• Using multiple smaller heaters helps increase power potential and thus decrease time to heat the fluid

• Relatively low cost per Watt (~ $0.03/Watt)• Using multiple heaters allows for even distribution

of temperature• Drill holes in sides of tank to attach heaters

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Power Requirement

Cp Fluid = 1.878 KJ/kg*K

ρ Fluid = 973.25 kg/m3

Volume (30 gal) = .114 m3

ΔTemp = 200°CTime = 1 hr = 3600 s

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ACTUATION COMPONENTS & EJ MOUNTING TECHNIQUE

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PEW Chart

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Preliminary Selection

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