ML062220576

Johnston Pump Company Letter to Mr. Kent Sutton

ML062220576
Person / Time
Site:	Cooper
Issue date:	07/27/2004
From:	Tanya Smith Johnston Pump Co
To:	Sutton K Nebraska Public Power District (NPPD), Office of Nuclear Reactor Regulation
References
FOIA/PA-2006-0007
Download: ML062220576 (18)

Text

?I 16:13 I P NUCLEAR SERVICE DIVISION 4 14028255033 NO.940 PW03 9 JcOUMTONFIMr COMANY Ahma= R Smit&

( D-Nuclear ServceMiAgerf 41S$4PS-IS75 Cdf 1XL (423)62-451 PAX. (423) 0B-14V I -- - I- - - --- -- - - --  ::::3 27 July 2004 Mr. Kent Sutton Nebraska Public Power District Cooper Nuclear Station 2 1lAles South of Brownville . k Brownville, NE 68321

Dear Mr. Sutton:

Attached is Yuhoston Pupp Company's written report docwmenting engineering's review of 3e white paper provided by Cooper Nuclear Station. In accordance with your rurchase order 4500041514, resumec are at the back of the report.

Sh.zuld you have any further questions please contact. myself or Jexry Harrelson.

Re~ct,,

i Thomas Pi. Smith UC PAýA Stinecke, JPC Chattanooga Enginieering Manager Cooper *Job File A~ttacbnment ,Report Serial No.: 3T04-20 A~oMa~n, t 1-11 1?

Jphnstn Pump Company Cowmino Reprding Short Term Dry-run of Rubber Column Beainog Cooper Nadear Station, Nebraska Public Power Distrki By* n Jackson 2$KXL I-STG, Chsttanoga Service Cet~er Rvort Scril No.: JP04-20 J I

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Johnston Pump Company Comments Regarding Short Term Dry-run of ]Rubber Column Bearings Cooper Nuclear Station, Nebraska Public Power District Byron Jackson 2$KXL 1-STG, Chattanooga Service Center I Rejoo Seial No.; JP04-20 I

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• 0W?42?/2004 16:13 J P INUCLEAR SERVICE DIVISION 4 14028255033 NO.940 0~005 Table of Contents

1. Introducton I

2. Discussion 1 4

4. Summary I Conclusions

Wle(AOM4 lb:1ý5 J P NUCLEAR SERVICE DIVISION 4 14028255033 bo NO.940 P006 JOHNSTON PUMPS

,$00 Koomey Road Tel: (800) 926-6688 Brookshire. TX 77423 Fax. (281) 9346056 Comments on Short-term Dry-run

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1. Introduction The purpose of this report is to provide comments to the following question:

Given conditions tat existed at Cooper Nuclear Station(1), will the Service Water'pumps(2) cont*inu to functionl 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> after Gland Water flow is reduced to zero flow for 90 minutes and then restored to nXorgial?

(1) During January 21, 2004- February 11, 2004:

River water level 8755 MSL - 877.5 MSL.

Service water temperature <457F.

Pump running at capacity (5500 gpm).

Average discharge pressure 50 psig average.

Gland water flow 8 gpm to the enclosing tube (16-24 psi),

Vibration (IST) normal.

(2) Byron Jackson 28KXL I-Stage VCT pumps with 1180 rpm, 300 Hp Motors.

The followin material conditions axisted as of February 2003: 1). New pump assembly, pacidug, couplin, shafts, cutlass bearings, aWi impeller. 2). Rebuilt outer columnn, discharge nozzle, registers, and spider bushing supports.

2. Discussion

Background

The fuiction of the Gland Water flow is to provide clean water lubrication to the pump's stuffling box area, and column bearings during the pump operation.

In vertical pumps, the column bearings provide 'bubwper' bearing support. Due to negligible pressure diffe*rnces across the bearings, they do not behave as typical hydrostatic bearings. However, a thin fluid film between the bearing and the shaft iesults in some bearing damping and fluid stiffness.

For the subject pump, at the given river level, if the gland water flow is stopped, the top 7 bearings (including the stuffing box bearing) would not tecive the lubrication. The bottom 5 bearings (3 bottom colum.dbearings and 2 bowl bearings) would be submerged in the pumping fluid.

In order to provide the answer to the posed question, we undertook the following steps:

By I:e. - I Revott No Date -.

RSVISIQrI .1 1 V, D~

.... ~ ~. . I Mike Cugal JP04-0 07/16W0 00

k y'eu-r/"d4 1b:1J I P NLCLERR SERVICE DIVISION 4 1402255033 NO.

JOHNSTON PUMPS 00 Koomey Road Tel: (800) 026.6688 Tmokshim, TX 77423 Faxr (281) 934-8056 Comments on Short-term Dry-run e '" .. .NPPD - Colper Nucseer Sttion

. BJ S..2d6Mode 290.1-s0( t-tOroJectiml r .. Jrry Harmlson

1. Technical assessment by the Johnston Pump engineering staff.

2. General review and study of the field repair history of similar cases.

.3. Rotor dynamics andysis.

2.1 Technical assessment After the gland flow is stopped, the packing box area will not receive proper lubrication and cooling flow, and the top 6 column bearings will not receive lubrication. The packing box bearing will heat up due to contact from the shaft. The effect of this could depend on the amount and force of the contact with the iotating shaft. If the shaft rotates without much wobble, it is conceivable that damage to the bearing or shaft can be minimal. If the shaft contacts the stuffing box bearing constantly, the packing gland will get over-heated and dry, and the bearig clearance will increase.

A typical verticaJ shaft is in tension and, in theory, it wilIrotate freely without any contact if the alignment and register fits are true and no manufacturing and machining tolerances exist. In real ope ion;,however, the residual imbalance of&he rotor, some hyd-aulic u*balanco, allowable manufacturing tolerances, and the natural frequency of the rotor could cause the rotor to wobble and contact.the column bearings. If lubrication'to the bearings is not present, we c4n foresee local heating of the rubber bearings and weakening of the rubbermaterial. Thei onstan.t contact with'46 shaft could result in loss of the beanrng material. The severity of the materiallossi would higbly depend on tMnature and amount of contact. However, we do believe that in general the bearing clearances v411 increase significantly due to the contact of the shaft.

When the bearing clearances increase, the pump can experience higher vibration of the pump shaft and possibly the pump structures in general. The severity and effect of the vibration are difficult to predict, but a catastrophic pump failure within 90 minutes of operation without the gland water supply and subsequ=t 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> of operation with the gland water supply is not likely to happen due to the vibration from increased bearing clearanmcs.

There is a remote chance of a pump shaft seiure when it is operated without lubrication against rubber bearings.

However, the probability of a seizure is very low if the pump does not have to stop and restart 2.2 Field repair history We wee not able to locate any vritten repair report that dealt with the exact nature of this case. No record was found where the exact duration of the dry-running was documented. Our assessment was based on verbal communications with various Johnston Pump service centers. In most cases, operating pumps without lubrication to the rubber bearings resulted in severe damage to the column bearings and shafts. In some cases of pump failuve, the shaft was seized, but the duration of the operation seemed to have been longer than a day or so.

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16:13 J P NJCLEAR SERVICE DIVISION 4 14028255033 ND. 940 P008 JOHNSTON PUMPS 800D Koomey Road Brookshire, TX 77423 Tel: (800) 926-6688 Fax, (281) 934-6055 .il Comments on Short-term Dry-run I: '- jiCustoibnr j NPPD - Cooper Nuclear Staeon

eQMp and-rodji -Pjo.Manre t J28ny K-TG Our interviews with senior field service technicians resulted in similar conclusions. In their expeence, when the gland water supply is stopped, the rubber bearings get over-heated, and in some cases they have seen smoke coming out of the column. In most cases, the pump will begin to vibrate, and eventuly it will be pulled for a repair. There were some cases where one or two bearings were completely damaged and pumps operated for over 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />. The general opinion of the service technicians is that the pump could have survive the 90 minutes of I,

dry-operation though the bearings may have gotten severely damaged, and operation of the pump for the subsequent 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> with re-introduction of the gland water supply would have been possible:

2.3 Rotor dynamics analysis We believe that the loss of gland water supply will cause loss of beaxing damping effect (by losing the fluid Om between the bearing and shaft) and could open up.the running clearances (which will Cange tbi bearing stifess). In order to study the rotor dynamics behavior in more detail, we conducwi&OaateiW1 rg*r dynamic's.

analysis,(;epr JP04-18).

Due to time 4bunstraints and the unavailability of some pertinent geomety infonbation (i.e 1rýtor rotor details),

we had to usethis siudy diligently. Our conclusions from the analysis are as follows:

It is q~ite typical foi" a ve.'rtical pump rotor system to have a number of critical speeds ,thatare close to the, excit& ion frc&e,*ncy*. Such a case Was proven to be tree in this analysis. In this study,*t e fo*-'I oth* e ;

""moda hae of the rotor in order to study .th effect of the shaft and beating contact. .

• The baseline analysis (pump .innormal operating condition with gland water supply) indicat.ed ,thatthere'i.

indeed a natural frequency mode within 4.5% of the running frequency. The mode shap, howv, indicated that the shaft and the inner column deflect in the same phase, providing a non-ecOitktdng mode (refer to report IP04-1 8).

The worst case anatysis (pump without gland water supply and assuming all 7 topt bearings arejlost 6nd do not provide any bearing support) indicated that a higher mode natural frequency is near-the' running speed (within 6 %), and that the deflection mode of the sha" and inner column are not in the lame phase. This would indicate a contact between the shaft and bearing, and that severe damages to the.bearings can be expected.

. Based on the mode shape analysis, we believe that the worst mase scenario would not hap'en-during the pump operation. The mode shape indicated that two bearings may have come in severe contact with the shaR, but not all dry-running bearings would have been damaged.

Our conclusion based on the rotor analysis is that when the pump is run dry some shaft contact with the bearings will occur. Based on the modal shape in the worse case scenario, we believe that contact will be made on some of the bearings, but loss of all column bearing support is not likely to happen.

Based on the modal shape analysis, the inner column mode shape was detected near the running speed. If the inner column fails, the result could be a re-supply of the lubrication to the column bearings as the discharge rep.ree4 By. ec~iakeb. By Rd~oittooI Date R~evftkn :IQj' gvp' Maks Cugal JP04-0O711M/4 00 -

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~Z4 Ju20. 1-T I.'Pr6 600 Mit r Jepty Hanilson pressure pushes the fluid into the columL. This would become somewhat beneficial in this case (dy:pending on the nature of the failure), as it would introduce the lubrication and damping back to the column bearings.

3.0 Summary and conclusions It is general knowledge and recommended practice never to operate a vertical pump with rubber bearings without proper lubrication. We wish to clearly state that~the *evaluationsa and statements of this iepooit~egarding this issue does not change such views. We also wish to state that the statements and summary of this report are intended only to share our views on this particular operation case, and we do not recommend or accept any future operation of the pump witbout the gland water supply for any length of time without a changi to the exiting pump~bearing design.

Our database search and study of past field service records (vaitten and verbal) did show that some damage to the bearings and/or shaft can occur due to the lack of pump gland water supply. However, 'we dd*ot have copclusive data which ixitctes a catastrophic pump-failure would have resulted within 90 minutes of operation without the hn'd water supply and subse~quent 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> with re-supply of gland water. Our rotor dynamics an!.lsis indicated that it is higMly unlikely to d ati tep rubber bearings subjected to the dry-nmning' condition.

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.1kl to amg..B We believe ~~~at giv the ample mottv horsepower and the good exstin naitenance p rtethis case 04(aPinment, good sAts and registers, etc.), the pump could have survived the 90 minutei of yopert*ion. W the gland wair supply was re-introduced, the pump could have operated (possibly vwith higher vibratiohI and Some damagtd berings) for an additional 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />. .

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.... ... ....... L* *I'I.940 Pol1o Nirmal Ganatra WS. Et Experience Flow Products%Inc.

Much 2002 - Present DeWsig Engineer SrodfshIre, TX Responsible for the development of custom-engineered Vertical Pumps by performing Englneerng Analyss and Design Including:

. Rotordynarnkr Anlvsts including lateral &torsional natural frequency and mode shape analysis, torsional foroed response analysis for VFD applicetions end shaft-Be determination through transient torsional analysis

- Mnile flemer Anabsls InvoMng calculations for determining static stresses "nddeffected shapes. structural natural frequendes and mode shapes, etc.

Q,omnvutati*na AIud DynpmiLs Analysts for the design and conrection of sutnps under adverse flow conditions Y_inraiom Measurement using acceleometers, proximity probes, OROS vbration equipment and aditioral vibration meters

- 2D DraftiMa & 3D Modelino - Possess a solid base in Ihe development of Parametic Draw*Angs using the EUg:_Mg

• Geneaflon ofil11ls Matgol and Pr Dwlgsn to procesm orders for Vertical Pumps TurbooclneIU-bo Texas A&M UniNws

-L-kJ=August 200 Mrch 2002 Grviime Research As~lslant Cbllege Station, TX Develoed codes usig Y% ExceLI to be Incorporated M XLTRC-Torsimn a suite of Comnxper Codes for I'onmkaJ knahis oflow drive tralns. The -research project was supported by the Turbomachinery Research Consortdum (TRC) at Texas A&M Unweraity WtPtrix cv..

Jwrv loss - .;4y 200W Aumtoebon Enre A&v! MAWbe; JriAW, Performed ODftn Calculatlons and Caputer Pifogiamng in C++.faclting customiztion of Dbm*&. s. MoAQ 94jhM for prorming tests on Turbines, LC. Engines wad Pumps for Reat-Thre Control of Testing and Display of Res.Ol PiOaU. Pie & 6, c:turt Pr*ivate Um,'ted June 1097 - June 1999 ErvineuigTrainee Nair Maitiba lndl' Underwent two-year prt-time Irsnong In the QeM!Un and Manuacurle of pipes, pressure vess and other labrlcation woek wmdert*e&i by the company.

Education The Undve*ray a! Texs at Aribd 00o 1EXpected Graduatlion~av 2006 - M~a~r of Bzskuws Ad bL9WSWon (Craine) Minatork Tx The Universty of Te*RsMBA Online program Is a uniue collaboratkon emong eight UTcornpornet unrveesitles that offer Interacte Web-based courses. These courees can be effectively pursued from any part of the world.

,Tso A&M Unvoewlty

)Ma~y 2O03Tk Masterof~ciene Collee Station, TX Majored In-.echanical Engineering wih a GPA of 3.59/4.00. Research on Torsional Vib*tion Anaayss Included atwihong a thesls'entiled 'Validation of Computer-Generated Results wfth Experimental Data obtained for Torsional Vibration of Synchronous Motr-Drdven Tudromachinery'.

2n10siMufl Bachelor of Svbwe, (Meharag Mumbal- Inda, ,

Lin the Colege with 74.32% marks and Sixth In the Unersity among 642 students to receive a - Class with W !l1-1111p1oma 1 Medulcafej 1 FkveAhg Mumbal, India bkd in the Dept. of Mech. Eng. among 72 students, while scoring 74.09% mark and receiving a"Frst ClassW.

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-~ ~ ~LA'I Selected PrOoects

• Deblan Pralect for Siihtuimbegr Llhited: "esign of an electrically operated valve for regulating pressurized flow Inthe Moduar Dynamic Tester (MDTr, co*nucted as a pat of the Advanced CompUter-Akied Enrinrele comrse at Texas A&M University during Spring 2001.

• Fabrication of a Pelton Wheel Test RNg with CGompete Automation of Tesling on it: FnaJ year Bachelors' project conducted while at the University of Mumbalf.

Computtlion Sklts

. Enginmeeng Sotare: SOOR*cor, XLTRF, SolkiWodis, CosmosWorks, ProE, AumoCAD, CFM, APgor, Mep~e, MathCAD

• Programming: C=G++, BASIC, Visual BasiC, VBA-Excel

- Web-page Developinern Software: Java. WKML, FrontPage, Adobe PhotoShop SDawta  : Oracle. FoxPro, dBase Recent Courses Attended

• The Relationship of Vibration to Problems InCentrifugal Pumps - 20th Intemalfnai Pump Users Simlosium, Turbomn.chinery Lab, Texms A&M University, Qollege Station, Tx, March 29=3.

. CFX-5 Ikroduitory Course - AEA Techntlogies Engineering Software, Inc., Piftbu'g, PA. Januarl 2003.

Affiiatlons vmerinan Society of Medakal Engineers, Phi Kappa Phi Honor SoiJety, India Business &Teiv'4kogy Comodtum, Uon Publication Ganom, N(.K. Patrir, S.M., Kukami, S.V., Rodrigues A.DJ., Wagle, S.S., Wagle, S.S., "ConstahvtS4ed Test on a Conmputerized.Pelton Wheel Test Ri:', Proceedings ot the 26th National Conference on Fluki mectias* and.Fluid Power,.

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i,7/27/28W4 16:13 J P NUCLEAR SERVICE DIVISION + 14028255033

ý'-I NO. 940 9012 Lanka Pannila PE.

Flow Products Inc.

Office 281 lpannfla@flow-p'oductS.com EDUCATION:

B.S. In Mechanical Engineering Thniversit) of Peredenlya, Sri Lanka E> 4 M. S. In Engineering & TechnologiC991 to 199 3OhIo University, Athens. OH.

?rofessional Engineer. State of Oi*gon.

WUMMARY Of QUAUIF!CATIONS:

BSME and MS in Mechanical Engineering.'

Extensive experience with API pump design, testing and iroubleshoofing. A.

Extensive experience in boner feed, pipeline, circulator & booster pump desin.

led.icol and horizontal pump application experience.

API ASTM, ASME, -11, AWWA, UBC, OSHA specification experience.

ýxtensiýu experience In FEA, 3D solid modeling and design optimization.

iotor-d'ynamic anatyshs and vibration analysis.

Product design, development and cost reduction.

P.c-ect management and team leadership.

Noraluic, electrical, foundry and computer experience.

Worked as a dis'zussion group leader at Pump Symposium JOHNSTON PUMP CO. (Dlwy of flow fPoducts Inc.1 Enatinwna Mgnager, Avnil 2000 to Present Flow Product's Johnston Pump division make large vertical pumps for power, gas. petrochemical and municipal markets. As the engineering manager, Iramn responsible for vertical pump design work, new product development.

worldwide technical support, test lab and service center support. I supervise a team of 10 engineers and 3 field service'technickins. During last twelve months, I have improved on time delivery of engineering design from 50% to 95M. reduced engineering errors by 70%and reduce engineering cost by 16%.

I trained engineers to perform advance analyses and eliminated sub contract work. Introduced 3D modeling in place of 2D drafting. Standardized fabricated components and designed parametric drafting tools to reduce cost. Reduced casting costs by using new designs and offshore foundries. Helped business- unit to win large orders by providing new product designs and proposals. I Improved work quality and responsiveness to our customers, business unit, machine shop, and test lab. I hired talented engineers and responsible for training & mentoring.

07eý27/2Wl 16:13 J P NUCLEAR SRUEFICE MtCinki -ý

'940 9013

-- ~~~N 1 reduced field service problems by Initiating corrective actions to prevent re-occurrence. Helped service centers with technical support In repairing vertical and horizontal pumps. Trained service center personnel and provide technical support on horizontal pump repairs for them to break in to horizontal pump repair business.

Introduced a new circulator pump with low shut off head to the market.

Introduced a new method to analyze large sumps using CFD Instea6 of expensive and time-consuming model testing.

JOHNSUON PUMP CO. (Div. O1 Flow Produch Inc.1 ..-

Sen!ic.' fls*in EnaineeAua 1998 Apd 000 to*

I supported the design-engineering group with advanced calculations such as lateral and torsional crtical speed, structural natural frequency, pressure boundary etc. and helped with design reviews. Designed vertical pumps to meet API and HW Ofandards. Supported field service dept In rectifying field probl*ms, field mnodiflktiow 6nd ;o find the best corrective action. Introduced a novel

nethod to accurately predict dischiarge head -natural .frequencies. Suppoiled '

' lab onr c'iffcult vibrarion ond hydraulic tormanance problems. Helped sbles" 1 '.

engInev )nd 'PIqom s with.proposals nnd applicotion engineering probiei

I I .C.

I ýs responisible for large projects Including engineering and project manogemenf. Designed hodrntal multistage pumps tor API market. Perfon .ed..

all calculalior)s to design pump.-shafts,. base plates, pressure containing part" and weore specifications for buy out parts such as lube systems, mechatrlcal.

seals, turbines motrrs, gear boxes, switch gear and Instrumentation. Rescved -

manufacturing problems and. performance test Issues. I designed pumps for Exxon D13oa Prolect and was responsible for the complete project. For' this jxA'ec. designed 4, :3 stg. high pressure pumps from scratch, API lube system 3 point mount base plate for floating applications. Corrected bearing housing/base plato resonance vibration problems encountered at lab testing.

Designed .,Al pumps for Exxon Baton Rough refinery upgrade project. Designed marnufactured and supplied 4 new pump units and upgraded several exifting pumps to obtain higher capacity.

I performed pump testing and correcled mechanical and hydraulic test problems. Helped after market teamn with engineering calculations to re.ate existing pumps.

07v*?280724*s 16:13 3TP NUCLEAFRSERVICE DIVISION >1402825533 NO.940 D014 PeE1eef  :.1 ol9 Performed torsional and lateral critical speed calculations for horizontal and vertical multistage pumps. designed boiler feed, pipeline and transfer pumps to API 7th edition. Designed new, cost effective base plates for process pumps to satisfy API IX and 2X nozzle loads. Performed structural and natural frequency analysis for pump components using ANSYS finite element software. I corrected difficult field and test vibration test problems. Worked on a special cost reduction team to redjce MSD pump line's cost by 30%. Wrote engineering prucedures and standards.

Davi1d Brown Pumc peslon Enuneerl. 19Mo 199$

, .. estliect multistage horizontal -and vertical, centrifugal pumps per API tind c9u$onm&- speciloc-tions. 9elgned all components, prepared bill of nra6tcas and 3pecificationls for buy out parts. Performed witness performance testirn,'

Mcnaged pXojects from start to end and attended technicaI/sched~rin -

rne.Bioro wih customer. Witnessed buy out pad testing such as motors gears, a turbines. r.1.lgn spreau ýheehs 1o'psrform pressure boundary calculationsk;,' I.

.e$ polcukations, structural calculations etc.

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Worked on Ohio Departmenit o? Transportation (ODOT) funded project to find The feasibility of using solar energy In highway rest areas. Installed solar collec'toris associated equipment and data acquisition system. Monitored 2 test areas and cotleced data for a year. Sinulated the solar system using TRANSYS computer code and validated test data. Submitted monthly progress reports and final recommendations to 030T..

Samuel Sons & Co Ltd. 1851o 19I1 R n~& Lb*..niar- En _ne-er / Foundry Manane Ddslgn*d self and non-self priming centrifugal water pumps for agricultural Industry. Developed a computer program to generate vane profiles of Impeller and volute vanes. Designed paddy threshers and transplanters. Re-organlzed managed company's cast iron foundry for a year.

er?2?/2G04 16:13 J P NUCLEAR SERVICE DIVISION . 14028255033-O.940 I215 bealix Enggineedn. 99--1983 to,19985 psveloptment Endneer I designed molor control center, maln control panels large industries using Klockner Mouler srwtchgear. Design and developed a new automatically controlled power factor correction capacitor bank to reduce kVA with varying power dernand, COMPUTeR EXPERIENCe:

>- Proficient and trained Solid Works user. Introduced 3D modeling and FEM ana4ysls to the present company.

>ý Highly experienced with COSMOS and ANSYS finite element software.

> XLRotor rotor dynamic analysts software.

. Proficient In Excel, Lotus, MS Word. MS Project, Outlook and Front Page.

> Mligosoff NT, 98 & DOS, UKnb and VMS experience.

• .- *Works computational fluid dyndmic (CFD) software.

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07qý712004 16:13 J P NUCLEFR SERVICE DIVISION 4 14028255033 NO. 940 016 Michael Cugal, P. E.

Experience Flow Products, Inc., Johnston Pump Company, TX, April, 2003 - Present Senior Hydraulic Engineer, Engineering Group Flowserve Corporation, Pump Division, Vernon, CA: June, 2002- March, 2003 Supervior, Engineering III I Product Engineering a Rationalize engineering design standards from former IDP and Flowserve.

a Perform product cross training.

1. Coordinate engineering Improvements and create bulletins and procedures to esiabrlsh best practices.

-Reduce 20% of engineering lead time Implemening design standards for the different product lnes and continuous training..

• Reduce 20% number of errors from last year. by the automation of engineering calculations and creating a database of design practices to help order processing.

SDrive CIP (continuous Improvement process) throughout engineering, identifying opportundies for improvements and establishing metrics.

Identify aid Imrplerent cost reduction oppoituniies in the different product lines from feedback of vandors, manufactunng, supprier chain, quality, Zest department and customer service.

Flow ProductW, Inc., Johnston Pump Company, IX: June, 2001 - June, 2002.

Snior Hydraulic E-ngineer, Engineerlng Group v Was directly responsible for pump hydraulic design, development, perfoTmance, and test department technology for Johnston Pump Company.

• Supervised test department engineering group.

9Provided engineering support to project engineering group, service centers, field services, Project Managers. Appflcations and Engineering, end Sales Engineers.

Used CFD codes (CFX-TASCFLOW and CFX-5) to Improve, analyze, and support engineering end sales.

Supported monthly shipment goals with pump 1= time pass efforts (Improved 1o time pump test pass rate from 64% to 84%.)

Flowserva Corporation, Pump Division, Vernon, CAs 1988 2001 Project Engineer, Technology Department, 1996 - 2001

" Managed project engiheering, schedules, and budgets. Prepare and submit status and progress reports as required.

" Performed engineering design reviews, design calculations, design analyses, performance end economic evaluations as required to ensure optimal function, appearance, manufacturabllity, cost, and value of components and assemblies, Perform Inspedions and tests; troubleshoot shop end field problems as needed.

A'hlevement%

a Used a CFD code (CFX-TA$CFLCW) to design a high efficiency cryogenic turbo expender (89% -prototype).

o Successfuly designed and tested a single-stage high-head low-flow pump (350 GPM, 400 Ft ID), and led a team to develop and test an 8-stage prototype pump.

. *Managed project a to develop proras to reduce CFD usage lead-tme from 4-5 weeks to 1-2days.

r q 0 /;'7/"-fl 15:13 3 P NUasniA SERVICE DIVISION +1402 B255 033 NO.946 IP 1?

¶oft2

• Designed a 34W (caslhg) split case double suction pump for H-lyosung Ebara Co.

SDe*Igned a new rnpeler for the US NAVY.

SenIorDesanEnlnee. R&D Mp Gr: - 19-96

• Used a Quasb-3D computer program to dqign a low NPSHR boiler feed pump Impeller for a nuclear power plant.

a Selected and provided proposal curves for 40 vertical pumps for the Colorado River Municipal Water District; O.H, ME Pipeline project Desýtn Enqlneer. R&D Grow. 1992-1993 Developed and tested R&D prototype bealdess magnetic drive pump for API marlcet Deskin Enalneer Tehnal Serves Grop I1 N-19 Managed a project tg design, derop, and test hlghe f yw vertical pump. The new verbcal diffuser casing design yielded 3 percentzge points of Improvement ki effiiency (from 8T% to 90%).

Co-. p Enqgn n1ecncalrses Groug 1988-1990 WVrota pre and %.pmcessing routines in FORTRAN to work wfth the h-hous.

inrite element stniciumianaiysi code. Resulting code was dis-lhltued to other El*ies in Holfnd, Mowdo; and San Jose, CA.

Worked in Prozess FngIneerlng Group, Nuclear Valve Group, and Toet Depaltnent In a national prkarnh

• m*Ottou California State loAytechnlc Unhve1r*ly; Pomona Rachelor uf Scierca In MLeanlcar Engineering J

'Appled 3D .TVIWq',sf§t TX* boC*nry', onpts E'I, 1993.

`"Cent'ifugal Pump esig and Peffornance', Concepts E-lI,1992.

'Corrn-utIorwl Fluid Dnmnlcs: 1'"hey, Computer Codes &Applcations',

T Unbeisfy of Calornia, Los AMgeles, 1991.

-Publications Authored and presented folow'ng technical papers:

"CFf Analysis of Mixed Flow mpeller, l96.ASME Conference, Sah Diego, CA a Performance Prediclton ftom Shutoft to Runout FWA of Hofizontal Cenbifugal Pump', 1997 ASME Conference.-Vancouver, B.C.

a 'Riddgn of Ballerfeed pump Impeller', 1991 ASME Confernce, Varnouver, B.C.

• Flow Visuale.ion of ."efeedpump sudion Impeller', 1998 Texas A&M Pump Users Symposim ,

Membeqships Regtermd Profesonal Engineer InMechanA Engineering, Calfforria Texas A&M Pump Symposium Verfcal Pump DLscusslon Leader (2002).

Lifelife member of Tau Beta PIk engineering honor society.

Member of P1 Tau Sigma, mechanical engineering soiety.

Member of American Soc*ety of Mechanical Engineers.

Sidils Protiaent InCFX-TASCFLOW, Cornputational Fluid Dynanics (CFO) code Profident in Personal Computers and general Microsoft Ofice programs as well as; Unigraphics, AuoCAD. Mechanical Desktop, and MS Powerpointl Project 2of2

I.

Johnston Pump Company Lateral Vibration Analysis for Nebraska Public Power District - Cooper Nuclear Station I.

Johnston Pump Serial No. 02JCl130S - 1134S

• 1r Report Serial No.: JP04-18 Crt~ibcatiol2 (whea Appbicabe) serfe to be compliancc E&gbccingDept., Bnookshirc Thiis ux

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