HISTORY OF ROCKET ENGINES AND A NEW PROPOSAL TO INCREASE THEIR EFFICIENCY: MAGNETIC FIELDS ·...
Transcript of HISTORY OF ROCKET ENGINES AND A NEW PROPOSAL TO INCREASE THEIR EFFICIENCY: MAGNETIC FIELDS ·...
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HISTORYOFROCKETENGINESAND
ANEWPROPOSALTOINCREASETHEIREFFICIENCY:MAGNETICFIELDS
SaidAboualiSánchezYolandaTrujilloAdriá
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CONTENTS
INTRODUCTIONTHEDEVELOPMENTOFROCKETSTHROUGHOUTHISTORY
THERMOELECTRICEFFECTMAGNETICEFFECTF.E.M.ANALYSIS
EXPERIMENTALVALIDATIONCONCLUSIONS
FUTUREWORKSANDCHALLENGES
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INTRODUCTION
• Threemainneeds:1. TheneedtoknowwhatisbeyondtheEarth.2. Theneedtotravelfaraway.3. Theneedtoincreasetheefficiency.
• Threewaystounderstandandsolvetheproblem:1. Historical2. TheoreUcal3. Experimental
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HISTORY:FirstYears
• AulusGellius–Archytas–Woodenbird• HeroofAlexandria-Aelopile• First“rockets”:Blackgunpowderrockets
-Chinese–>1232->Mongoles-Arabs->1258-Europe
• DuringtheXVIcentury,firstdescripUonsofthemethodappears:
-RogerBacon- JeanFroissart- JoanesdeFontana- JohannSchmidlap
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HISTORY:Thebiginningofascience
• IsaacNewtonyWilliamGravesande->AcUon-reacUonprinciple->XVIICentury
• DevelopmentinRussiaandGermany.• IntheXVIIcenturytheywereasaccurateasthearUlleryofthisUmes.Thentheyloseprecisiónandmostlydisappear.
• AttheendofXVIIIcenturyandthebiginningofXIXthereappeartobeusedinwars.
• CoronelWilliamCongreve• WilliamHale–spinstabilizaUon
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HISTORY:Thestudyofmodernrocketry
• AtthebeginningoftheXXcenturyKonstanUnE.TsiolkowskyisthefirstinproposeinacienUficwayaspacetripandthelaunchingofsatellites->USEOFLIQUIDPROPELLANT
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HISTORY:Thestudyofmodernrocketry
• RobertH.Goddard
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HISTORY:Thestudyofmodernrocketry
• GermanV-2
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HISTORY:Thestudyofmodernrocketry
• DevelopmentsintheUSAandintheSovietUnion.• 4thofOctoberof1957–>SputnikI• Laika• ExplorerI
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HISTORY:Thefuture
• Therearemanypointsofimprovementinspacetrip• Theefficiencyinthermoelectrics,amongothers,itisbeingstudiedtroughoutthedevelopmentofmaterialsandnanotechnology.
• MagneUcfields.• ExperimentalvalidaUons.
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THERMOELECTRICEFFECT
Whatdotheyhaveincommon?
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THERMOELECTRICEFFECT
RefrigeraUon(PelUercell) EnergygeneraUon(RTG)
ManyapplicaUons
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THERMOELECTRICEFFECT
ADVANTAGES:• Noliquids• Nomovingparts• Weightdecrease• Useoflostenergy• Savefuel!Cheaper• OperateinhosUlenvironments• Ecofriendly• Safe
• PerfectforaerospaceapplicaUons• 2009:BOEING:Reduce0.5%fuel!Save$12.075M
¿WHYARETHEYNOTCONSOLIDATEDYET?
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THERMOELECTRICEFFECT
DISADVANTAGES:• Lowefficiency• Limitedpower• Highcost
POSSIBLESOLUTION:• MagneOcfields
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MAGNETICEFFECT
+ =
FINDTHE7DIFFERENCIES
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MAGNETICEFFECT
LandauFormulaUon • Hall!R• Ernghausen!N• Nernst!R• Righi-Leduc!M
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FEM:RESULTS
• Finiteelementmethodanalysis• Thermo-elasto-galvano-magneUcformulaUon.3DN-L• Thermoelement:InSb.MagneUcproperUes:Okumura
• IncreaseCOP EXPERIMENTALVALIDATIONISREQUIRED
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EXPERIMENTALVALIDATION
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EXPERIMENTALVALIDATION
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EXPERIMENTALVALIDATION
hsps://www.youtube.com/watch?v=2UHKcMS9dGE
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EXPERIMENTALRESULTS
• “y”!temperaturegradient(K)
• “x”!Ume(s)
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EXPERIMENTAL:RESULTS
• “y”!temperaturegradient(K)
Highestvaluereached.CellspecificaUons(10A)
ConducUonPelUer,Nernst
NeedofconvecUon
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CONCLUSIONS
• FutureAerospaceIndustry:• Efficient• Cheap• Ecofriendly• Safe
• Thermoelectriceffect:• PelUerCells!RefrigeraUon• RTG!EnergygeneraUon
• PROBLEM!Lowefficiency• SOLUTION!MagneUcfields
• NumericalvalidaUon(FEM)• ExperimentalvalidaUon
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FUTUREWORK
Isthisadreamorareality?
• 2014:“ThermoelectricEnergyGenera2onTakesFlightforAircra8andSpacecra8Monitoring”(JPL)
• 2015:“BoeingPatentIssuedforThermoelectricPowerGenera2onUsingAircra8FuselageTemperatureDifference”
• 2023:JPLesUmatesathermoelectricmarketof$875M
• 2015:“Asuperconduc2ngshieldforastronauts”
Itisadreamthatcanbecomeareality!Let’sworkonit!
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FUTUREWORKSANDCHALLENGES
• Numericalstudy• Strain.¿Doesthematerialbreak?• Temperatureandvoltagefields• HowtoconUnueincreasingCOP• Newdesigns
• Completeexperimentalstudy• BeserfaciliUes!IsolatethemagneUcfieldfromothereffects• AchievehigherintensiUes• MeasuretheheatextractedinarealisUcway• StudytheenergygeneraUonmodeexperimentally.
• VehicleintegraOon• HowtointroduceamagneUcfieldinanopUmalway?• VibraUonandnoiseanalysis.• MaterialcompaUbilityandthermalstrain• Maintenance
• RealapplicaOonanalysis:GalileospacecraT
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THANKYOUFORYOURATTENTION
¿QUESTIONS?