Component and System Level Modeling of a Two-Phase Cryogenic Propulsion System for Aerospace Applications
|
|
- Sarah Ward
- 6 years ago
- Views:
Transcription
1 Component and System Level Modeling of a Two-Phase Cryogenic Propulsion System for Aerospace Applications J. LoRusso, B. Kalina, M. Van Benschoten, Roush Industries GT Users Conference November 9, 2015
2 Agenda Introduction to Integrated Vehicle Fluids (IVF) System H2-O2 Fueled IC Engine Cryogenic Propellant Heat Exchangers IVF System Level Simulation Other ICE/IVF Elements
3 Integrated Vehicle Fluids (IVF) System Overview
4 IVF Simplified System Schematic Upper stage propellant tanks IVF High Level Concept Description IC engine generates mechanical power to drive starter-generator and propellant compressors Waste heat from IC Engine transferred to cold propellants extracted from the propulsion tanks Enthalpy added to the cold propellants is then transferred back to the tanks for tank pressurization The starter-generator transfers power to high density Lithium Ion batteries extending mission length Gimbaled thrusters fire directly from tank ullage gases, replacing the prior hydrazine fired thrusters
5 IVF Transformation (resultant lift-off mass benefit) IVF Transformation in the Launch Vehicle Upper Stage The result is a reduced complexity upper stage with elimination of helium bottles used for tank pressurization, hydrazine to fire the thrusters, and a portion of the batteries for electrical power The end result, reduced system mass, with extended mission length capability and increased payload opportunities
6 H2-O2 Fueled IC Engine
7 IC Engine (ICE) Combustion with H2/O2 Fuel Limited published data existed on H2/O2 fueled IC engines Traditionally H2/Air IC engines operate at fuel-lean equivalence ratio In contrast, the IVF H2/O2 ICE operates fuel-rich Greater availability of waste H2 than O2 in the vehicle due to faster boil-off of H2 Flame temperature and burn rate controlled to equivalent levels as gasoline-air Simulation results and experimental data confirmed this hypothesis Definitions: Mixture Ratio (MR ) = O2/H2 mass flow rate Fuel Air Equivalence Ratio = Stoich MR / Actual MR
8 ICE Concept Prove-out & Design for Flight Single Cylinder ICE 1 st Concept Prove-out Wankel ICE 2 nd Concept Prove-out New I6 Flathead ICE 1 st Pre-flight design for cryogenic fluid system IVF proof-of-concept testing Flathead architecture simplified challenges with lubrication at zero G High S/V ratio increased % of fuel energy lost to the coolant, which was important for IVF
9 ICE Design Analysis via GT-Power Flathead chamber plan view To support the new I6 ICE design, numerous performance and DOE studies were conducted using GT-Power: Engine displacement Intake & Exhaust Valve timing Injection timing relative to IVO Valve Size Intake manifold geometry H2 throttle & O2 injector geometry Cooling System design GT-Power was converted to run on H2-O2 1 st Experimentally measured burn rates used SITurb was approximated for the flathead geometry (spark plug is offset to bore) Unique Environment Intake H2 working gas from upper stage ullage tank, pressurized, ambient temps due to heat exchange of coolant w/propellants. Exhaust environment, 0 psia vacuum Metrics Traditional performance and fuel consumption metrics Trapped vs. overall O2/H2 Mixture ratio Brake specific O2 consumption
10 Exhaust Valve Duration Exhaust Valve Duration DOE Optimization Example (Valve Event Schedules) Intake Valve Duration Intake Valve Duration Since supply of waste H2 was more available than O2 in the vehicle, it was important to minimize O2 consumption for a given power level Brake Specific Oxygen Consumption (BSOC) defined as follows: BSOC (lbm/hp-hr) = O2 mass flow rate (lbm/hr) / PW (hp) Optimized valve event schedule X employed a balanced weighting between power output and BSOC
11 Cryogenic Propellant Heat Exchangers
12 Cryogenic Heat Exchangers: Overview Three classes of heat exchangers designed utilizing GT-Suite analysis tools: 1) Coolant-to-Gaseous H2/O2 propellant heat exchangers Heat from engine coolant transferred to cool propellants (ullage gases) for tank pressurization 2) Liquid-to-Gaseous H2/O2 propellant heat exchangers High enthalpy propellants heated by engine coolant used to vaporize liquid propellants for additional capacity in tank pressurization 3) Coolant-to-Gaseous H2 propellant heat exchanger Heat from engine coolant transferred to cool H2 propellants to IC engine consumption
13 Cryogenic Heat Exchangers: Architecture On Earth gravity is relied upon for enhancing heat exchanger performance, especially that of evaporators Since IVF heat exchangers need to operate in a zero gravity environment, fluids are run through helically wound channels which impart centripetal force and mimic the effect of gravity 1-D flow analysis in GT-Suite used to model conjugate heat transfer from the coolant to the cool ullage gases, or from the high enthalpy ullage gases to the liquid propellants Analysis results were used to guide heat exchanger sizing and coolant selection body Liquid flows helically around interior of heat exchanger end caps with inlet/outlet fittings for fluids
14 Cryogenic Heat Exchangers: 1-D Simulation GT-Suite was used to create simulation modules for each heat exchanger to model conjugate heat transfer and size each heat exchanger All propellant properties were pulled from NIST REFPROP Cool GH2 outlet Warm coolant inlet Cool GH2 inlet Example: Simulation module for Coolant-to- GH2 heat exchanger Adiabatic coolant circuit wall sections Heat subtraction from coolant: determined by calculating result of [(mdot_gh2)*(h_gh2_in h_gh2_out)] GH2 circuit wall sections; for these, wall temperature was predicted by using Wall Temperature Solver Object; RLT outputs for coolant circuit bulk fluid convection temperature and convection coefficient used as inputs Warm coolant outlet
15 Cryogenic Heat Exchangers: 1-D Simulation Coolant-to-GO2 HEX Coolant-to-GH2 HEX Temperature Gaseous Oxygen Gaseous Hydrogen Coolant Liquid Oxygen Liquid Hydrogen GO2-to-LO2 HEX GH2-to-LH2 HEX
16 Cryogenic Heat Exchangers: 3-D Simulation To validate the 1-D modeling approach, the Coolant-to- GO2 heat exchanger was simulated using 3-D conjugate heat transfer CFD Temperature CFD Temperature Contours: Coolant Circuit Delta temperatures for each fluid across the heat exchanger as predicted by CFD was to be found to be sufficiently close to 1-D results Temperature CFD Temperature Contours: GO2 Circuit
17 Heat Exchangers: Fabrication & Experimental Setup All five heat exchangers proceeded to be designed in CAD, parts were machined, and finished parts were assembled; all of this was done in-house at Roush Each heat exchanger was then incorporated into a test assembly which eventually included the engine, heat exchangers, and compressors Heat exchangers assembly ready for installation into test cell
18 Qdot (BTU/s) Heat Transfer Rate Qdot (BTU/s) Heat Transfer Rate Qdot (BTU/s) Heat Transfer Rate Cryogenic Heat Exchangers: Model vs. Data Qdot (simulation) Qdot (lab) 2% overprediction Case 1 1 Performance of Coolant-to-GO2 Heat Exchanger Qdot (simulation) Qdot (lab) 48% underprediction Case 1 1 Performance of GH2-to-LH2 Heat Exchanger Average of 43% underprediction Case 1 1 Case 2 2 Case 3 3 Case 4 4 Qdot (simulation) Qdot (lab) Performance of Coolant-to-GH2 Heat Exchanger Thermal performance of the Coolant-to- GO2 heat exchanger as predicted by GT- Suite showed excellent agreement with test cell data Thermal performance of the Coolant-to- GH2 and GH2-to-LH2 heat exchangers as predicted by GT-Suite showed not as good of agreement with test cell data Predicted thermal performance of the Coolant-to-GH2 heat exchanger showed good trend-wise agreement as compared to test cell data
19 IVF System Level Simulation
20 IVF System Level Simulation The entire IVF System was modeled in GT-Suite per the projected flightready configuration; key features of the model included: Detailed heat exchanger models, half of which were calibrated to lab data for heat transfer and pressure loss O2 and H2 compressors Vehicle tank models which account for both ullage and liquid volumes Properly sized valves and plumbing PID controllers for regulating: coolant flow to heat exchangers as a means of system thermal balance control pressure downstream of heat exchanger liquid propellant circuit as means of targeting fluid outlet vapor quality
21 IVF System Level Simulation O2 Tank H2 Tank H2 Compressor O2 Compressor H2 Accumulator Engine Heat Rejection Coolant-to-GH2 HEX GO2-to-LO2 HEX Coolant-to-GO2 HEX GH2-to-LH2 HEX GH2-Regen HEX Avionics Heat Rejection
22 Tank Pressures Pressure IVF System Level Simulation Tasks accomplished with IVF System model: Validated compressors and heat exchangers add enthalpy to the ullage gases to successfully pressurize O2 and H2 tanks at an acceptable rate for vehicle mission states Model was used to understand function of system prior to the experimental program Cooling system total pressure drop has become better understood Full system coolant circuitry Model predicted performance for using only ullage gas to pressurize tanks Oxygen Tank Hydrogen Tank Time
23 Other ICE/IVF Elements (with unique challenges)
24 SITurb Predictive SI Combustion Model A key challenge to integrating a predictive SI combustion model was that GT-Power s SITurb model assumes that the combustion chamber resides directly above piston, which is not the case for the engine s flathead chamber Rotating the overhanging part of the chamber by 90-degrees positioned the chamber above the cylinder and served as a workaround At the present, good agreement with lab data has been achieved at low speed conditions This modeling exercise could have benefited from a combustion model which allows for an overhanging combustion chamber; one such combustion model was described in SAE (U. of Wisconsin) Simulated engine flathead combustion chamber Spark location Actual engine flathead combustion chamber Vertical Distance from Deck Face
25 Engine Cooling System Redesign A model of the engine cooling system was constructed in GT-Suite to guide CAD designs This cooling system model was run simultaneously with the engine model whereby the cooling system model provided coolant temperatures and convection coefficients to GT-Power s predictive combustion chamber wall temperature model This enabled insight into required modifications to manage cylinder block and cylinder head temperatures, and to provide boundary conditions for CFD analysis Coolant Outlet Head Cooling Velocity Coolant Inlet Cylinder Wet Liner Cooling Valve Seat Cooling
26 P_exhaust Cryogenic Compressor Design Analysis Single Stage gas/mixed phase cryogenic compressor modeled in GT-Suite Model used to optimized design parameters, verify function prior to build Power Consumption N_compressor
27 Thank You Acknowledgements United Launch Alliance (program sponsor) NASA /Marshal Space Flight Center (program co-sponsor) Publications AIAA references YouTube Video
Abstract. 1 American Institute of Aeronautics and Astronautics
Enabling Long Duration CisLunar Spaceflight via an Integrated Vehicle Fluid System Michael Holguin, United Launch Alliance (ULA) 9100 E. Mineral Avenue Centennial, CO 80112 Abstract The following paper
More informationGas exchange and fuel-air mixing simulations in a turbocharged gasoline engine with high compression ratio and VVA system
Third Two-Day Meeting on Internal Combustion Engine Simulations Using the OpenFOAM technology, Milan 22 nd -23 rd February 2018. Gas exchange and fuel-air mixing simulations in a turbocharged gasoline
More informationHeat Transfer in Engines. Internal Combustion Engines
Heat Transfer in Engines Internal Combustion Engines Energy Distribution Removing heat is critical in keeping an engine and lubricant from thermal failure Amount of energy available for use: Brake thermal
More informationAnalytical and Experimental Evaluation of Cylinder Deactivation on a Diesel Engine. S. Pillai, J. LoRusso, M. Van Benschoten, Roush Industries
Analytical and Experimental Evaluation of Cylinder Deactivation on a Diesel Engine S. Pillai, J. LoRusso, M. Van Benschoten, Roush Industries GT Users Conference November 9, 2015 Contents Introduction
More informationHERGOTT Julien & MOISY Alexandre EHRS modelling with GT-Suite European GT Conference 2015
HERGOTT Julien & MOISY Alexandre 26-10 - 2015 EHRS modelling with GT-Suite European GT Conference 2015 Reduce CO2 by more than 50% in Europe, USA and China between 2005 and 2025 Average CO2 emissions from
More informationINTERNAL COMBUSTION ENGINE (SKMM 4413)
INTERNAL COMBUSTION ENGINE (SKMM 4413) Dr. Mohd Farid bin Muhamad Said Room : Block P21, Level 1, Automotive Development Centre (ADC) Tel : 07-5535449 Email: mfarid@fkm.utm.my HISTORY OF ICE History of
More informationSimulation of the Mixture Preparation for an SI Engine using Multi-Component Fuels
ICE Workshop, STAR Global Conference 2012 March 19-21 2012, Amsterdam Simulation of the Mixture Preparation for an SI Engine using Multi-Component Fuels Michael Heiss, Thomas Lauer Content Introduction
More informationFinite Element Analysis on Thermal Effect of the Vehicle Engine
Proceedings of MUCEET2009 Malaysian Technical Universities Conference on Engineering and Technology June 20~22, 2009, MS Garden, Kuantan, Pahang, Malaysia Finite Element Analysis on Thermal Effect of the
More informationPowertrain Efficiency Technologies. Turbochargers
Powertrain Efficiency Technologies Turbochargers Turbochargers increasingly are being used by automakers to make it possible to use downsized gasoline engines that consume less fuel but still deliver the
More informationPart Load Engine Performance prediction for a gasoline engine using Neural Networks. Sreekanth R, Sundar S, Rangarajan S, Anand G -System Simulation
Part Load Engine Performance prediction for a gasoline engine using Neural Networks Sreekanth R, Sundar S, Rangarajan S, Anand G -System Simulation CAE-2 System Simulation GT-SUITE User Conference Feb
More informationEmission from gasoline powered vehicles are classified as 1. Exhaust emission 2. Crank case emission 3. Evaporative emission. Table 1.
Introduction: Main three types of automotive vehicle being used 1. Passenger cars powered by four stroke gasoline engines 2. Motor cycles, scooters and auto rickshaws powered mostly by small two stroke
More informationDual Fuel Engine Charge Motion & Combustion Study
Dual Fuel Engine Charge Motion & Combustion Study STAR-Global-Conference March 06-08, 2017 Berlin Kamlesh Ghael, Prof. Dr. Sebastian Kaiser (IVG-RF), M. Sc. Felix Rosenthal (IFKM-KIT) Introduction: Operation
More informationULA Briefing to National Research Council. In-Space Propulsion Roadmap. March 22, Bernard Kutter. Manager Advanced Programs. File no.
ULA Briefing to National Research Council In-Space Propulsion Roadmap March 22, 2011 Bernard Kutter Manager Advanced Programs File no. Copyright 2011 United Launch Alliance, LLC. All Rights Reserved. Key
More informationSWIRL MEASURING EQUIPMENT FOR DIRECT INJECTION DIESEL ENGINE
SWIRL MEASURING EQUIPMENT FOR DIRECT INJECTION DIESEL ENGINE G.S.Gosavi 1, R.B.Solankar 2, A.R.Kori 3, R.B.Chavan 4, S.P.Shinde 5 1,2,3,4,5 Mechanical Engineering Department, Shivaji University, (India)
More informationCrankcase scavenging.
Software for engine simulation and optimization www.diesel-rk.bmstu.ru The full cycle thermodynamic engine simulation software DIESEL-RK is designed for simulating and optimizing working processes of two-
More informationPOSIBILITIES TO IMPROVED HOMOGENEOUS CHARGE IN INTERNAL COMBUSTION ENGINES, USING C.F.D. PROGRAM
POSIBILITIES TO IMPROVED HOMOGENEOUS CHARGE IN INTERNAL COMBUSTION ENGINES, USING C.F.D. PROGRAM Alexandru-Bogdan Muntean *, Anghel,Chiru, Ruxandra-Cristina (Dica) Stanescu, Cristian Soimaru Transilvania
More informationSimulation Model for a Gasoline Engine with Advanced Thermal Control
page 1 Vehicle Thermal Management Systems Conference and Exhibition Gaydon, UK 15-19 May 2011 A High-Resolution Warm-Up Simulation Model for a Gasoline Engine with Advanced Thermal Control Dr. Gerald Seider,
More informationProposal to establish a laboratory for combustion studies
Proposal to establish a laboratory for combustion studies Jayr de Amorim Filho Brazilian Bioethanol Science and Technology Laboratory SCRE Single Cylinder Research Engine Laboratory OUTLINE Requirements,
More informationMarc ZELLAT, Driss ABOURI, Thierry CONTE and Riyad HECHAICHI CD-adapco
16 th International Multidimensional Engine User s Meeting at the SAE Congress 2006,April,06,2006 Detroit, MI RECENT ADVANCES IN SI ENGINE MODELING: A NEW MODEL FOR SPARK AND KNOCK USING A DETAILED CHEMISTRY
More informationEffect of Reformer Gas on HCCI Combustion- Part II: Low Octane Fuels
Effect of Reformer Gas on HCCI Combustion- Part II: Low Octane Fuels Vahid Hosseini, and M David Checkel Mechanical Engineering University of Alberta, Edmonton, Canada project supported by Auto21 National
More informationL34: Internal Combustion Engine Cycles: Otto, Diesel, and Dual or Gas Power Cycles Introduction to Gas Cycles Definitions
Page L: Internal Combustion Engine Cycles: Otto, Diesel, and Dual or Gas Power Cycles Review of Carnot Power Cycle (gas version) Air-Standard Cycles Internal Combustion (IC) Engines - Otto and Diesel Cycles
More informationACTUAL CYCLE. Actual engine cycle
1 ACTUAL CYCLE Actual engine cycle Introduction 2 Ideal Gas Cycle (Air Standard Cycle) Idealized processes Idealize working Fluid Fuel-Air Cycle Idealized Processes Accurate Working Fluid Model Actual
More informationEngine Heat Transfer. Engine Heat Transfer
Engine Heat Transfer 1. Impact of heat transfer on engine operation 2. Heat transfer environment 3. Energy flow in an engine 4. Engine heat transfer Fundamentals Spark-ignition engine heat transfer Diesel
More informationCubeSat Advanced Technology Propulsion System Concept
SSC14-X-3 CubeSat Advanced Technology Propulsion System Concept Dennis Morris, Rodney Noble Aerojet Rocketdyne 8900 DeSoto Ave., Canoga Park, CA 91304; (818) 586-1503 Dennis.Morris@rocket.com ABSTRACT
More informationModule7:Advanced Combustion Systems and Alternative Powerplants Lecture 32:Stratified Charge Engines
ADVANCED COMBUSTION SYSTEMS AND ALTERNATIVE POWERPLANTS The Lecture Contains: DIRECT INJECTION STRATIFIED CHARGE (DISC) ENGINES Historical Overview Potential Advantages of DISC Engines DISC Engine Combustion
More informationCavitation CFD using STAR-CCM+ of an Axial Flow Pump with Comparison to Experimental Data
Cavitation CFD using STAR-CCM+ of an Axial Flow Pump with Comparison to Experimental Data Edward M. Bennett, Ph.D. Vice President of Fluids Engineering March 17, 2014 The Project Mechanical Solutions,
More informationAEROSPACE TEST OPERATIONS
CONTRACT AT NASA PLUM BROOK STATION SANDUSKY, OHIO CRYOGENIC PROPELLANT TANK FACILITY HYPERSONIC TUNNEL FACILITY SPACECRAFT PROPULSION TEST FACILITY SPACE POWER FACILITY A NARRATIVE/PICTORIAL DESCRIPTION
More informationOn Orbit Refueling: Supporting a Robust Cislunar Space Economy
On Orbit Refueling: Supporting a Robust Cislunar Space Economy Courtesy of NASA 3 April 2017 Copyright 2014 United Launch Alliance, LLC. All Rights Reserved. Atlas V Launch History ULA s Vision: Unleashing
More informationInternal Combustion Engines
Internal Combustion Engines The internal combustion engine is an engine in which the burning of a fuel occurs in a confined space called a combustion chamber. This exothermic reaction of a fuel with an
More informationEMISSION CONTROL (AUX. EMISSION CONTROL DEVICES) H6DO
EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES) H6DO SYSTEM OVERVIEW 1. System Overview There are three emission control systems, which are as follows: Crankcase emission control system Exhaust emission
More informationPrediction of Engine Warm-up and Fuel Economy utilizing GT s Customized FE Cylinder Structure Objects
Prediction of Engine Warm-up and Fuel Economy utilizing GT s Uliana Bryakina Gerald Seider Frankfurt, October 16, 2016 European GT Conference 2016 InDesA GmbH Carl-Zeiss-Ring 19a D-85737 Ismaning Phone
More informationEffect of Hybridization on the Performance of Fuel Cell Energy/Power Systems (FCEPS) for Unmanned Aerial Vehicle (UAV)
Effect of Hybridization on the Performance of Fuel Cell Energy/Power Systems (FCEPS) for Unmanned Aerial Vehicle (UAV) (Paper No: IMECE2010-38884) Dr. Mebs Virji Co-authors : K. Bethune, R. Rocheleau University
More informationFigure 1: The spray of a direct-injecting four-stroke diesel engine
MIXTURE FORMATION AND COMBUSTION IN CI AND SI ENGINES 7.0 Mixture Formation in Diesel Engines Diesel engines can be operated both in the two-stroke and four-stroke process. Diesel engines that run at high
More informationHYDROS Development of a CubeSat Water Electrolysis Propulsion System
HYDROS Development of a CubeSat Water Electrolysis Propulsion System Vince Ethier, Lenny Paritsky, Todd Moser, Jeffrey Slostad, Robert Hoyt Tethers Unlimited, Inc 11711 N. Creek Pkwy S., Suite D113, Bothell,
More informationEuropean GT-SUITE Conference 2009 page 1. European GT-SUITE Conference Frankfurt, State-of-the-art and Future Requirements for
page 1 European GT-SUITE Conference Frankfurt, 09.11.2009 State-of-the-art and Future Requirements for Vehicle Dr. Gerald Seider Dr. Fabiano Bet InDesA VTM GmbH InDesA GmbH page 2 Key Applications Design
More informationBIMODAL NUCLEAR THERMAL ROCKET (BNTR) PROPULSION FOR FUTURE HUMAN MARS EXPLORATION MISSIONS
BIMODAL NUCLEAR THERMAL ROCKET (BNTR) PROPULSION FOR FUTURE HUMAN MARS EXPLORATION MISSIONS Stan Borowski National Aeronautics and Space Administration Glenn Research Center Cleveland, Ohio Bimodal Nuclear
More informationBIMODAL NUCLEAR THERMAL ROCKET (BNTR) PROPULSION FOR FUTURE HUMAN MARS EXPLORATION MISSIONS
BIMODAL NUCLEAR THERMAL ROCKET (BNTR) PROPULSION FOR FUTURE HUMAN MARS EXPLORATION MISSIONS Stan Borowski National Aeronautics and Space Administration Glenn Research Center Cleveland, Ohio Bimodal Nuclear
More informationA Study of EGR Stratification in an Engine Cylinder
A Study of EGR Stratification in an Engine Cylinder Bassem Ramadan Kettering University ABSTRACT One strategy to decrease the amount of oxides of nitrogen formed and emitted from certain combustion devices,
More informationEffects of Spent Cooling and Swirler Angle on a 9-Point Swirl-Venturi Low-NOx Combustion Concept
Paper # 070IC-0023 Topic: Internal combustion and gas turbine engines 8 th U. S. National Combustion Meeting Organized by the Western States Section of the Combustion Institute and hosted by the University
More informationChapter 4 ANALYTICAL WORK: COMBUSTION MODELING
a 4.3.4 Effect of various parameters on combustion in IC engines: Compression ratio: A higher compression ratio increases the pressure and temperature of the working mixture which reduce the initial preparation
More informationEMISSION CONTROL (AUX. EMISSION CONTROL DEVICES) H4SO
EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES) H4SO SYSTEM OVERVIEW 1. System Overview There are three emission control systems, which are as follows: Crankcase emission control system Exhaust emission
More informationInternational Journal of Advance Engineering and Research Development
Scientific Journal of Impact Factor (SJIF): 3.134 International Journal of Advance Engineering and Research Development Volume 2, Issue 12, December -2015 e-issn (O): 2348-4470 p-issn (P): 2348-6406 An
More informationIntegration of Lubrication and Cooling System GT-SUITE Models
Integration of Lubrication and Cooling System GT-SUITE Models North American GT Conference 2017 Presenter: Robert Fry Agenda Introduction Cooling System Model Development Lubrication System Model Development
More informationDevelopment, Implementation, and Validation of a Fuel Impingement Model for Direct Injected Fuels with High Enthalpy of Vaporization
Development, Implementation, and Validation of a Fuel Impingement Model for Direct Injected Fuels with High Enthalpy of Vaporization (SAE Paper- 2009-01-0306) Craig D. Marriott PE, Matthew A. Wiles PE,
More informationModule 3: Influence of Engine Design and Operating Parameters on Emissions Lecture 14:Effect of SI Engine Design and Operating Variables on Emissions
Module 3: Influence of Engine Design and Operating Parameters on Emissions Effect of SI Engine Design and Operating Variables on Emissions The Lecture Contains: SI Engine Variables and Emissions Compression
More informationTHERMAL MANAGEMENT SYNERGY THROUGH INTEGRATION PETE BRAZAS
THERMAL MANAGEMENT SYNERGY THROUGH INTEGRATION PETE BRAZAS 1 Propulsion System Trends Evolution of the TMM A Closer Look at Electrification System Integration Approach Outlook Powertrain Technology Roadmap
More informationH-IIA Launch Vehicle Upgrade Development
26 H-IIA Launch Vehicle Upgrade Development - Upper Stage Enhancement to Extend the Lifetime of Satellites - MAYUKI NIITSU *1 MASAAKI YASUI *2 KOJI SHIMURA *3 JUN YABANA *4 YOSHICHIKA TANABE *5 KEITARO
More informationSimulation of Performance Parameters of Spark Ignition Engine for Various Ignition Timings
Research Article International Journal of Current Engineering and Technology ISSN 2277-4106 2013 INPRESSCO. All Rights Reserved. Available at http://inpressco.com/category/ijcet Simulation of Performance
More informationALCOHOL LOX STEAM GENERATOR TEST EXPERIENCE
ALCOHOL LOX STEAM GENERATOR TEST EXPERIENCE Klaus Schäfer, Michael Dommers DLR, German Aerospace Center, Institute of Space Propulsion D 74239 Hardthausen / Lampoldshausen, Germany Klaus.Schaefer@dlr.de
More information3D CFD Modeling of Gas Exchange Processes in a Small HCCI Free Piston Engine
3D CFD Modeling of Gas Exchange Processes in a Small HCCI Free Piston Engine Aimilios Sofianopoulos, Benjamin Lawler, Sotirios Mamalis Department of Mechanical Engineering Stony Brook University Email:
More informationOPTIMIZATION STUDIES OF ENGINE FRICTION EUROPEAN GT CONFERENCE FRANKFURT/MAIN, OCTOBER 8TH, 2018
OPTIMIZATION STUDIES OF ENGINE FRICTION EUROPEAN GT CONFERENCE FRANKFURT/MAIN, OCTOBER 8TH, 2018 M.Sc. Oleg Krecker, PhD candidate, BMW B.Eng. Christoph Hiltner, Master s student, Affiliation BMW AGENDA
More informationStudying Turbocharging Effects on Engine Performance and Emissions by Various Compression Ratios
American Journal of Energy and Power Engineering 2017; 4(6): 84-88 http://www.aascit.org/journal/ajepe ISSN: 2375-3897 Studying Turbocharging Effects on Engine Performance and Emissions by arious Compression
More informationAPPLICATION OF STAR-CCM+ TO TURBOCHARGER MODELING AT BORGWARNER TURBO SYSTEMS
APPLICATION OF STAR-CCM+ TO TURBOCHARGER MODELING AT BORGWARNER TURBO SYSTEMS BorgWarner: David Grabowska 9th November 2010 CD-adapco: Dean Palfreyman Bob Reynolds Introduction This presentation will focus
More informationFuel control. The fuel injection system tasks. Starting fuel pump (FP)
1 Fuel control The fuel injection system tasks - To provide fuel - To distribute the fuel between the cylinders - To provide the correct quantity of fuel Starting fuel pump (FP) The control module (1)
More informationInvestigation of Radiators Size, Orientation of Sub Cooled Section and Fan Position on Twin Fan Cooling Packby 1D Simulation
Investigation of Radiators Size, Orientation of Sub Cooled Section and Fan Position on Twin Fan Cooling Packby 1D Simulation Neelakandan K¹, Goutham Sagar M², Ajay Virmalwar³ Abstract: A study plan to
More information2013 THERMAL ENGINEERING-I
SET - 1 II B. Tech II Semester, Regular Examinations, April/May 2013 THERMAL ENGINEERING-I (Com. to ME, AME) Time: 3 hours Max. Marks: 75 Answer any FIVE Questions All Questions carry Equal Marks ~~~~~~~~~~~~~~~~~~~~~~~~
More informationMETHANE/OXYGEN LASER IGNITION IN AN EXPERIMENTAL ROCKET COMBUSTION CHAMBER: IMPACT OF MIXING AND IGNITION POSITION
SP2016_3124927 METHANE/OXYGEN LASER IGNITION IN AN EXPERIMENTAL ROCKET COMBUSTION CHAMBER: IMPACT OF MIXING AND IGNITION POSITION Michael Wohlhüter, Victor P. Zhukov, Michael Börner Institute of Space
More informationInfluence of Fuel Injector Position of Port-fuel Injection Retrofit-kit to the Performances of Small Gasoline Engine
Influence of Fuel Injector Position of Port-fuel Injection Retrofit-kit to the Performances of Small Gasoline Engine M. F. Hushim a,*, A. J. Alimin a, L. A. Rashid a and M. F. Chamari a a Automotive Research
More informationCombustion PVM-MF. The PVM-MF model has been enhanced particularly for dualfuel
Contents Extensive new capabilities available in STAR-CD/es-ice v4.20 Combustion Models see Marc Zellat presentation Spray Models LES New Physics Developments in v4.22 Combustion Models PVM-MF Crank-angle
More informationCOMPARISON OF VARIABLE VALVE ACTUATION, CYLINDER DEACTIVATION AND INJECTION STRATEGIES FOR LOW-LOAD RCCI OPERATION OF A LIGHT-DUTY ENGINE
COMPARISON OF VARIABLE VALVE ACTUATION, CYLINDER DEACTIVATION AND INJECTION STRATEGIES FOR LOW-LOAD RCCI OPERATION OF A LIGHT-DUTY ENGINE Anand Nageswaran Bharath, Yangdongfang Yang, Rolf D. Reitz, Christopher
More informationSMALLSAT PROPULSION. Pete Smith, Roland McLellan Marotta UK Ltd, Cheltenham, and Dave Gibbon SSTL, Guildford, UK.
SMALLSAT PROPULSION Pete Smith, Roland McLellan Marotta UK Ltd, Cheltenham, and Dave Gibbon SSTL, Guildford, UK. ABSTRACT This paper presents an overview of the components, systems and technologies used
More informationNumerically Analysing the Effect of EGR on Emissions of DI Diesel Engine Having Toroidal Combustion Chamber Geometry
Numerically Analysing the Effect of EGR on Emissions of DI Diesel Engine Having Toroidal Combustion Chamber Geometry Jibin Alex 1, Biju Cherian Abraham 2 1 Student, Dept. of Mechanical Engineering, M A
More informationAT AUTOMOTIVE ENGINES QUESTION BANK
AT6301 - AUTOMOTIVE ENGINES QUESTION BANK UNIT I: CONSTRUCTION & WORKING PRINCIPLE OF IC ENGINES 1. State the application of CI engines? 2. What is Cubic capacity of an engine? 3. What is the purpose of
More informationSetup Tabs. Basic Setup: Advanced Setup:
Setup Tabs Basic Setup: Password This option sets a password that MUST be entered to re-enter the system. Note: ProEFI can NOT get you into the calibration if you lose this password. You will have to reflash
More informationMazda RX-8 Rotary Hydrogen Engine
1 Mazda RX-8 Rotary Hydrogen Engine For A Cleaner Environment Mazda is committed to developing combustion technologies with a minimum of impact on the environment. At this year s Geneva Motor Show, Mazda
More informationCryocooler with Cold Compressor for Deep Space Applications
36 1 Cryocooler with Cold Compressor for Deep Space Applications T.C. Nast 1, B.P.M. Helvensteijn 2, E. Roth 2, J.R. Olson 1, P. Champagne 1, J. R. Maddocks 2 1 Lockheed Martin Space Technology and Research
More informationDesign/Modeling and Thermal Analysis on Cylinder Head of I.C Engine
Design/Modeling and Thermal Analysis on Cylinder Head of I.C Engine G.Bahadur Vali Department of Mechanical, Chebrolu Engineering College. Abstract: A cylinder head is made of box type of section of considerable
More informationThe influence of thermal regime on gasoline direct injection engine performance and emissions
IOP Conference Series: Materials Science and Engineering PAPER OPEN ACCESS The influence of thermal regime on gasoline direct injection engine performance and emissions To cite this article: C I Leahu
More informationAdvanced Cooling Technologies, Inc. Low-Cost Radiator for Fission Power Thermal Control NETS Conference
Advanced Cooling Technologies, Inc. Low-Cost Radiator for Fission Power Thermal Control 2015 NETS Conference Advanced Cooling Technologies, Inc. Taylor Maxwell Calin Tarau Bill Anderson Vanguard Space
More informationPotential of Large Output Power, High Thermal Efficiency, Near-zero NOx Emission, Supercharged, Lean-burn, Hydrogen-fuelled, Direct Injection Engines
Available online at www.sciencedirect.com Energy Procedia 29 (2012 ) 455 462 World Hydrogen Energy Conference 2012 Potential of Large Output Power, High Thermal Efficiency, Near-zero NOx Emission, Supercharged,
More informationIncreased efficiency through gasoline engine downsizing
Loughborough University Institutional Repository Increased efficiency through gasoline engine downsizing This item was submitted to Loughborough University's Institutional Repository by the/an author.
More informationCombustion Equipment. Combustion equipment for. Solid fuels Liquid fuels Gaseous fuels
Combustion Equipment Combustion equipment for Solid fuels Liquid fuels Gaseous fuels Combustion equipment Each fuel type has relative advantages and disadvantages. The same is true with regard to firing
More information2.61 Internal Combustion Engines Spring 2008
MIT OpenCourseWare http://ocw.mit.edu 2.61 Internal Combustion Engines Spring 2008 For information about citing these materials or our Terms of Use, visit: http://ocw.mit.edu/terms. Engine Heat Transfer
More informationWood-to-Wheels Engines and Vehicles Research
-Wheels Engines and Vehicles Research Dr. Jeff Naber Associate Professor ME-EM Department Michigan Tech University j.naber@mtu.edu Tel: 906.487.1938 1 Advanced Power Systems Research Center Advanced IC
More informationModel validation of the SI test engine
TEKA. COMMISSION OF MOTORIZATION AND ENERGETICS IN AGRICULTURE 2013, Vol. 13, No. 2, 17 22 Model validation of the SI test engine Arkadiusz Jamrozik Institute of Thermal Machinery, Czestochowa University
More informationAdditively Manufactured Propulsion System
Additively Manufactured Propulsion System Matthew Dushku Experimental Propulsion Lab 47 South 200 East Providence Utah, 84332 Mdushku@experimentalpropulsionlab.com Small Satellite Conference, Logan UT
More informationAMBR* Engine for Science Missions
AMBR* Engine for Science Missions NASA In Space Propulsion Technology (ISPT) Program *Advanced Material Bipropellant Rocket (AMBR) April 2010 AMBR Status Information Outline Overview Objectives Benefits
More informationImproving Fuel Efficiency with Fuel-Reactivity-Controlled Combustion
ERC Symposium 2009 1 Improving Fuel Efficiency with Fuel-Reactivity-Controlled Combustion Rolf D. Reitz, Reed Hanson, Derek Splitter, Sage Kokjohn Engine Research Center University of Wisconsin-Madison
More informationSuitability of reusability for a Lunar re-supply system
www.dlr.de Chart 1 Suitability of reusability for a Lunar re-supply system Etienne Dumont Space Launcher Systems Analysis (SART) Institut of Space Systems, Bremen, Germany Etienne.dumont@dlr.de IAC 2016
More information$DA ECM DEFINITION FILE
$DA ECM DEFINITION FILE OVERVIEW This document is intended to familiarize you with the features of C.A.T.S. Tuner Program. We do not attempt to provide instruction on engine tuning. The features provided
More informationC. Christen, D. Brand, CIMAC 2013 Simulation-based study on turbocharging dual-fuel engines Paper no. 187
C. Christen, D. Brand, CIMAC 2013 Simulation-based study on turbocharging dual-fuel engines Paper no. 187 Dual-fuel engines As a solution for IMO Tier III GAS MODE Low NO x emission NO x Level < IMO Tier
More informationINFLUENCE OF THE NUMBER OF NOZZLE HOLES ON THE UNBURNED FUEL IN DIESEL ENGINE
INFLUENCE OF THE NUMBER OF NOZZLE HOLES ON THE UNBURNED FUEL IN DIESEL ENGINE 1. UNIVERSITY OF RUSE, 8, STUDENTSKA STR., 7017 RUSE, BULGARIA 1. Simeon ILIEV ABSTRACT: The objective of this paper is to
More informationThermal Stress Analysis of Diesel Engine Piston
International Conference on Challenges and Opportunities in Mechanical Engineering, Industrial Engineering and Management Studies 576 Thermal Stress Analysis of Diesel Engine Piston B.R. Ramesh and Kishan
More informationSystem Simulation for Aftertreatment. LES for Engines
System Simulation for Aftertreatment LES for Engines Christopher Rutland Engine Research Center University of Wisconsin-Madison Acknowledgements General Motors Research & Development Caterpillar, Inc.
More informationScroll Compressor Oil Pump Analysis
IOP Conference Series: Materials Science and Engineering PAPER OPEN ACCESS Scroll Compressor Oil Pump Analysis To cite this article: S Branch 2015 IOP Conf. Ser.: Mater. Sci. Eng. 90 012033 View the article
More informationCONTENTS Duct Jet Propulsion / Rocket Propulsion / Applications of Rocket Propulsion / 15 References / 25
CONTENTS PREFACE xi 1 Classification 1.1. Duct Jet Propulsion / 2 1.2. Rocket Propulsion / 4 1.3. Applications of Rocket Propulsion / 15 References / 25 2 Definitions and Fundamentals 2.1. Definition /
More informationAFRL Rocket Lab Technical Overview
AFRL Rocket Lab Technical Overview 12 Sept 2016 Integrity Service Excellence Dr. Joseph Mabry Deputy for Science, Rocket Propulsion Division AFRL Rocket Lab Rocket Propulsion for the 21 st Century (RP21)
More informationThe GHOST of a Chance for SmallSat s (GH2 Orbital Space Transfer) Vehicle
The GHOST of a Chance for SmallSat s (GH2 Orbital Space Transfer) Vehicle Dr. Gerard (Jake) Szatkowski United launch Alliance Project Mngr. SmallSat Accommodations Bernard Kutter United launch Alliance
More informationComputational Investigation of Normal and Hybrid Cooling Fins of Internal Combustion Engine
Computational Investigation of Normal and Hybrid Cooling Fins of Internal Combustion Engine Aswin Mohan, R. Titus, Adarsh Kumar.P.S Abstract In this research work a hybrid material (Aluminium-Copper) compound
More informationThe Effect of Efi to the Carbureted Single Cylinder Four Stroke Engine
Journal of Mechanical Engineering Vol. 7, No. 2, 53-64, 2010 The Effect of Efi to the Carbureted Single Cylinder Four Stroke Engine Idris Ibrahim Adibah Abdul Jalil Shaharin A. Sulaiman Department of Mechanical
More informationMODULAR WATER CHARGE AIR COOLING FOR COMBUSTION ENGINES
DEVELOPMENT Thermal management MODULAR WATER CHARGE AIR COOLING FOR COMBUSTION ENGINES Valeo shows which considerations were taken into account with the development of a modular water charge air cooling
More informationHomogeneous Charge Compression Ignition combustion and fuel composition
Loughborough University Institutional Repository Homogeneous Charge Compression Ignition combustion and fuel composition This item was submitted to Loughborough University's Institutional Repository by
More informationSUPERCHARGER AND TURBOCHARGER
SUPERCHARGER AND TURBOCHARGER 1 Turbocharger and supercharger 2 To increase the output of any engine more fuel can be burned and make bigger explosion in every cycle. i. One way to add power is to build
More informationLow Emissions IC Engine Development at Ford Motor Company
Low Emissions IC Engine Development at Ford Motor Company George Davis Powertrain Research and Advanced Engineering ERC Symposium University of Wisconsin at Madison Research and Advanced Engineering June
More informationBack pressure analysis of an engine muffler using cfd and experimental validation
Back pressure analysis of an engine muffler using cfd and experimental validation #1 Mr. S.S. Mane, #2 S.Y.Bhosale #1 Mechanical Engineering, PES s Modern College of engineering, Pune, INDIA #2 Mechanical
More informationREDUCTION OF EMISSIONS BY ENHANCING AIR SWIRL IN A DIESEL ENGINE WITH GROOVED CYLINDER HEAD
REDUCTION OF EMISSIONS BY ENHANCING AIR SWIRL IN A DIESEL ENGINE WITH GROOVED CYLINDER HEAD Dr.S.L.V. Prasad 1, Prof.V.Pandurangadu 2, Dr.P.Manoj Kumar 3, Dr G. Naga Malleshwara Rao 4 Dept.of Mechanical
More informationAME 436. Energy and Propulsion. Lecture 6 Unsteady-flow (reciprocating) engines 1: Basic operating principles, design & performance parameters
AME 436 Energy and Propulsion Lecture 6 Unsteady-flow (reciprocating) engines 1: Basic operating principles, design & performance parameters Outline Classification of unsteady-flow engines Basic operating
More informationKul Internal Combustion Engine Technology
Kul-14.4100 Internal Combustion Engine Technology Gas Exchange, 2015 Topics Gas exchange in four stroke engines Volumetric efficiency Valves and valve flow Two stroke engine scavenging Camshaft and intake
More informationProblem 1 (ECU Priority)
151-0567-00 Engine Systems (HS 2016) Exercise 6 Topic: Optional Exercises Raffi Hedinger (hraffael@ethz.ch), Norbert Zsiga (nzsiga@ethz.ch); November 28, 2016 Problem 1 (ECU Priority) Use the information
More information2.61 Internal Combustion Engine Final Examination. Open book. Note that Problems 1 &2 carry 20 points each; Problems 3 &4 carry 10 points each.
2.61 Internal Combustion Engine Final Examination Open book. Note that Problems 1 &2 carry 20 points each; Problems 3 &4 carry 10 points each. Problem 1 (20 points) Ethanol has been introduced as the bio-fuel
More information