Free download ppt on gas turbine and jet propulsion

JET PROPULSION Part 6 Thrust Augmentation and Reversers.

JET PROPULSION Part 6 Thrust Augmentation and Reversers Reheat or Afterburning Thrust Augmentation Is a method of extracting more power from Internal Combustion Engines. It’s a form of ‘Power Boosting’ We shall examine two main types of augmentation systems, Water Injection and Reheat or Afterburning Water Injection Water Injection Systems cools the turbine, Operation of either Water or Water Methanol systems cools the turbine, and allows water/


Thermodynamics II Chapter 2 Gas Turbines Mohsin Mohd Sies

and jet-propulsion-driven engines have their own strengths and limitations, and several attempts have been made to combine the desirable characteristics of both in one engine. Two such modifications are the propjet engine and the turbofan engine. The most widely used engine in aircraft propulsion is the turbofan (or fanjet) engine wherein a large fan driven by the turbine/of air in the compressors, and cpg of burned gas in the combustor and turbines. Problem Ideal and Actual Gas-Turbine (Brayton) Cycles 9–73/


Mechanical engineering

.4 Brayton Cycle Both Rankine and Brayton Cycles (Two isobaric processes) + (Two isentropic processes) Two phase : Rankine cycle – Steam Power Plant Single phase : Brayton cycle – Gas Turbine Brayton Cycle Gas turbine operating on the Brayton cycle open cycle closed cycle Ideal gas-turbine for a jet engine 9.6 Jet Propulsion Cycle Air-Standard Cycle for Jet Propulsion Ideal gas-turbine for a jet engine (Brayton cycle)+(Reversible adiabatic nozzle) Jet Propulsion Cycle 9.8 Vapor Compression/


Department of Mechanical Engineering ME 322 – Mechanical Engineering Thermodynamics Lect 27b Jet Aircraft Propulsion.

Jet Aircraft Propulsion Aircraft Propulsion Thrust produced by increasing the kinetic energy of the air in the opposite direction of flight Slight acceleration of a large mass of air –Engine driving a propeller Large acceleration of a small mass of air –Turbojet or turbofan engine Combination of both –Turboprop engine 2 Aircraft Gas Turbine/net power and thermal efficiency are not meaningful. In turbojet engines, performance is measured by, Turbojet Performance 9 Propulsive Force (Thrust)Propulsive Power The/


Aircraft Engines Types and Placement.

aircraft. It is a Rolls Royce EJ200 turbofan engine. The military aircraft’s flight speed and jet velocity are both higher than for a civilian airliner, but jet velocity is still less than a turbojet (Vflight < Vjet < Vturbojet). Low bypass / generated with some kind of propulsion system. Many low speed transport aircraft and small commuter aircraft use turboprop propulsion. On this page we will discuss some of the fundamentals of turboprop engines. The turboprop uses a gas turbine core to turn a propeller./


Introduction Propellers Internal Combustion Engines  Gas Turbine Engines (TPs, TSs) Chemical Rockets Non-Chemical Space Propulsion Systems AER 710 Aerospace.

Gas Turbine Engines (TPs, TSs) Chemical Rockets Non-Chemical Space Propulsion Systems AER 710 Aerospace Propulsion Lockheed C-130 Hercules Sikorsky CH-54A Tarhe (“Skycrane”) powered by 2 4000-hp P & W T73-P-1 turboshaft engines Introduction to Turboprop & Turboshaft Engines Both turboprop [TP] and turboshaft [TS] engines use a gas turbine/immediately from station 5 to station 6 for the nozzle entry. The TP’s core exhaust jet is usually unchoked, such that for a simple convergent nozzle with station 7 as the /


MAE 4261: AIR-BREATHING ENGINES Exam 2 Review Exam 2: November 18 th, 2008 Mechanical and Aerospace Engineering Department Florida Institute of Technology.

of propulsive kinetic energy / fuel power –This is cycle efficiency Propulsive Efficiency –Propulsive Power / Rate of production of propulsive kinetic energy, or –Power to airplane / Power in Jet PROPULSIVE EFFICIENCY AND SPECIFIC THRUST AS A FUNCTION OF EXHAUST VELOCITY Conflict COMMERCIAL AND MILITARY /for thrust –Shows dependence on atmospheric pressure and cross-sectional area at compressor or fan entrance –Valid for any gas turbine NON-DIMENSIONAL THRUST FOR A 2 AND P 0 Thrust at fixed altitude is /


JET PROPULSION Part 1 The Compressor.

patented the design of his first reaction motor suitable for aircraft propulsion. Introduction The gas turbine engine, commonly referred to as the ‘jet’ engine, is an internal combustion engine which produces power by the controlled burning of fuel. In both the gas turbine and the motor car engine air is compressed, fuel is mixed with it, and the mixture is burnt. The heat which results produces a rapid/


Propulsion Systems. Propulsion System A machine that produces thrust to push an object forward The amount of thrust depends on the mass flow through the.

forward The amount of thrust depends on the mass flow through the engine and the exit velocity of the gas Airplane Propulsion Systems Propeller Turbine (jet) engine Ramjet or Scramjet Rocket Planes Why Are There Different Types of Engines? Newton’s 1 st Law Objects in motion tend to stay in motion and objects at rest tend to stay at rest unless something pushes or pulls/


CEAS 2013 – Linkoping, Sweden Novel Pulse Detonation Engine Concept Cleopatra F. Cuciumita, Bogdan G. Gherman and Ionut Porumbel National Research and.

PDE, that replaces classical deflagration combustor with a PDE enhance the engine performance reduce flight time decrease pollutant emission. Propulsion force generation Direct use of the reactive jet exiting the PDC Discharge of the PDC jet into a gas turbine High and oscillating jet temperature of the jet impinging the turbine blades Expected progress (1) CEAS 2013 – Linkoping, Sweden Classical PDE design Detonation frequency of 10 HzMechanical limitation of/


Chapter VI. Propulsion of Ships The propulsion system of a ship is to provide the thrust to the ship to overcome the resistance.

4.Tandem and Contra-rotating Propellers: It is used because the diameter of a propeller is restricted due to limit of the draft or other reasons (torpedo). The efficiency of the propeller usually decreases. Jet Propulsion Nozzle Propellers / tankers, (less 100 hp ~ >30,000 hp); 2.) High thermal efficiency. Disadvantages: 1.) Heavy cf. gas turbines; 4. Gas Turbines (developed for aeronautical applications) Advantages: 1.) Do not need boiler, very light; 2.) Offer continuous smooth driving, & need very/


MAE 4261: AIR-BREATHING ENGINES Air-Breathing Engine Performance Parameters and Future Trends Mechanical and Aerospace Engineering Department Florida Institute.

jet propulsion Thermal efficiency of Brayton Cycle,  th =1-T 1 /T 2 –Function of temperature or pressure ratio across inlet and compressor P-V DIAGRAM REPRESENTATION Thermal efficiency of Brayton Cycle,  th =1-T 1 /T 3 –Function of temperature or pressure ratio across inlet and compressor EXAMPLE OF LAND-BASED POWER TURBINE: GENERAL ELECTRIC LM5000 Modern land-based gas turbine used for electrical power production and/


AME 436 Energy and Propulsion Lecture 4 Basics of combustion.

ignition, premixed-charge) internal combustion engines »Stationary gas turbines (used for power generation, not propulsion)  Nonpremixed flames »Diesel-type (compression ignition, nonpremixed-charge) internal combustion engines »Gas turbines »Most industrial boilers and furnaces 27 AME 436 - Lecture 4 -//    ~ (  ) 1/2 where  is a characteristic flow time scale (e.g. d/u for a jet, where d = diameter u = velocity, or L I /u for turbulent flow, etc.)  Burning must occur near stoichiometric contour /


JET ENGINE PROPULSION Chapter 0 Introduction. GAS TURBINE ENGINE A GAS TURBINE ENGINE OPERATES SIMILARILY TO A PISTON ENGINE. THE DIFFERENCE BEING THAT.

JET ENGINE PROPULSION Chapter 0 Introduction GAS TURBINE ENGINE A GAS TURBINE ENGINE OPERATES SIMILARILY TO A PISTON ENGINE. THE DIFFERENCE BEING THAT A GAS TURBINE BURNS CONTINUOUSLY, WHILE A PISTON ENGINE ONLY BURNS FOR ¼ OF THE CYCLE. THE AIR IS TAKEN IN AND COMPRESSED, FUEL ADDED AND THE MIXTURE BURNED. THE BURNED EXHAUST GAS IS GUIDED OUT THE TAILPIPE WHICH GIVES US THE REACTION TO PUSH THE ENGINE FORWARD. NEWTON’S/


AME 436 Energy and Propulsion Lecture 1 Introduction to IC engines: Why, types, alternatives, history.

(u ’ /S L ) 2 for premixed flames in turbulent flows) KEKinetic energy (J or J/kg) LLift force (N) L f Jet flame length (m) L I Integral length scale of turbulence (m) LOMALaw Of Mass Action 5 AME 436 - Spring 2016 - Lecture 1 /work by pushing on a piston or turbine blade that in turn drives a rotating shaft or  Creates a high-momentum fluid that is used directly for propulsive force  By this definition, ICEs include gas turbines, supersonic propulsion engines, and chemical rockets (but rockets will not be/


Technical Committee Meeting 52nd AIAA Aerospace Sciences Meeting SciTech 2014 Air-Breathing Propulsion Systems Integration Technical Committee Michelle.

Energetic Components & Systems Hobin Lee Director Propulsion and Energy Jeff Hamstra Director Propulsion and Energy Jeff Hamstra Hybrid Rockets Brian Evans Hybrid Rockets Brian Evans Liquid Propulsion Scott Forde Liquid Propulsion Scott Forde Solid Rockets Mark Langhenry Solid Rockets Mark Langhenry Electric Propulsion Eric Pencil Electric Propulsion Eric Pencil Gas Turbine Engines John Sordyl (A) Gas Turbine Engines John Sordyl (A) High Speed Air Breathing Propulsion Ryan Starkey High Speed Air Breathing/


Green Engineering PC General Meeting April 1, 2014 Marty Bradley Program Committee Chair With meeting notes and actions added.

Energetic Components & Systems Hobin Lee Director Propulsion and Energy Jeff Hamstra Director Propulsion and Energy Jeff Hamstra Hybrid Rockets Brian Evans Hybrid Rockets Brian Evans Liquid Propulsion Scott Forde Liquid Propulsion Scott Forde Solid Rockets Mark Langhenry Solid Rockets Mark Langhenry Electric Propulsion Eric Pencil Electric Propulsion Eric Pencil Gas Turbine Engines John Sordyl (A) Gas Turbine Engines John Sordyl (A) High Speed Air Breathing Propulsion Ryan Starkey High Speed Air Breathing/


JET ENGINE PROPULSION Chapter 4 Types.

Shaft Helicopter Gem RN Ships Marine Spey Power Generation Industrial Spey and Trent To understand what is meant by ‘Turbo Jet’, ‘Bypass’, ‘Turbo Prop and ‘Turbo Shaft’ We need to look at the development of Gas Turbine Engines JET ENGINE TYPES Rolls-Royce AVON Basic Shape and Layout Turbo Jet 17 Stage Compressor driven by: - a 3 Stage turbine With RPM (I.e. Thrust) changes, the airflow velocity does/


Thermodynamics Professor Lee Carkner Lecture 18

rc = 0.906/8 = 0.113 = v2 = v3 T2 = T1(v1/v2)k-1 = (300)(8)0.4 = 689 K PAL # 17 Gas Power Cycles Find heats and work Find efficiency and MEP DT = q/cv, T3 = (q/cv)+T2 = (750/0.718)+689 =1734 T4 = T3(v3/v4)k-1 = (1734)(1/8)/= P8/P9 The input temperatures and enthalpies are the same of each compressor T1 = T3, h1 = h3 Jet Propulsion If we reduce the work produced by a turbine to just enough to power the compressor, the exit gases will have a lot of energy Used for aircraft propulsion Amount of force (or thrust/


A GAS TURBINE. CONTENT  INTRODUCTION  THEORY OF OPERATION  BRAYTON CYCLE  TYPES OF GAS TURBINE  SCALE JET ENGINE  MICROTURBINES  GAS TURBINE IN.

gas turbines Amateur gas turbines Auxiliary power units Industrial gas turbines for power generation Compressed air energy storage Turboshaft engines Radial gas turbines Scale jet engines (micro-jets) SCALE JET ENGINE MICROTURBINES Also known as:  Turbo alternators  Turbogenerator GAS TURBINES IN SURFACE VEHICLES Gas turbines are often used on ships, locomotives, helicopters, tanks, and to a lesser extent, on cars, buses, and motorcycles. A key advantage of jets and turboprops for aeroplane propulsion/


1 MAE 4261: AIR-BREATHING ENGINES Advanced Concepts Mechanical and Aerospace Engineering Department Florida Institute of Technology D. R. Kirk.

CONCEPT COMMENTS NASA/TM – 2004-212621 An innovative approach to gas turbine design involves mounting compressor and turbine blades to an outer rotating shell → exoskeletal engine Compression (preferable/.” 24 X-43 HIGHLIGHTS 25 HYPER-X FLIGHT TRAJECTORY 26 COMPARISON OF PROPULSION SYSTEMS 27 RAMJETS VS. SCRAMJETS Ramjets have a couple of important limits / constant pressure combustion, as demonstrated by a cycle analysis 41 PULSE JET: SUBSONIC V1 42 GAS TURBINE / PDE HYBRID 43 WHAT DID THIS? 44 PDE: AT HOME/


The Monza Fast Patrol Attack Craft Model MPA-17 From Marine Industries Plc. Marine Industries Plc is a public limited company incorporated June 2013 and.

0.3 m 3 Main engines: 2 x 1450hp gas turbines Secondary Patrol Engine.1 x 925hp MTU Diesel. Propulsion: 3 x 40A3 Rolls Royce water jets Maximum speed with twin 1450hp gas turbines: 70 knots Maximum speed with 950hp MTU single diesel:/with integral fuel cooler, easily removable. Patented top cylinder liner cooling and DDEC Electronic Engine Management. The Gas Turbine engine packages offered are safe and inexpensive to run, multi-fuel capable, and can be operated for long periods of time at maximum power /


AME 436 Energy and Propulsion Lecture 4 Basics of combustion.

ignition, premixed-charge) internal combustion engines »Stationary gas turbines (used for power generation, not propulsion)  Nonpremixed flames »Diesel-type (compression ignition, nonpremixed-charge) internal combustion engines »Gas turbines »Most industrial boilers and furnaces 29 AME 436 - Lecture 4 - //    ~ (  ) 1/2 where  is a characteristic flow time scale (e.g. d/u for a jet, where d = diameter u = velocity, or L I /u’ for turbulent flow, etc.)  Burning must occur near stoichiometric contour/


MAE 5380: Advanced Propulsion

speed of normal component of unburned gas at each location) Most practical devices (Diesel-engine combustion) has premixed and diffusion burning PROPULSION SYSTEMS Gas Turbine Engine for Propulsion X-37B Orbital Test Vehicle Gas Turbine Engine for Power Generation 5: /, durability Small size and weight Design for minimum cost and maintenance Future – multiple fuel capability (?) CHEMISTRY REVIEW General hydrocarbon, CnHm (Jet fuel H/C~2) Complete oxidation, hydrocarbon goes to CO2 and water For air-breathing/


Thermal Transpiration-Based Mesoscale / Microscale Combined Propulsion & Power Generation Devices Francisco Ochoa, Craig Eastwood, Jeongmin Ahn, Lars.

disposable batteries The challenge of micropropulsion n … but converting fuel energy to thrust and/or electricity with a small device has been challenging n Many approaches use scaled-/propulsion Theoretical performance of aerogel jet engine n Can use usual propulsion relations to predict performance based on Vargo et al. model of thermal transpiration in aerogels n Non-dimensional TFSC of silica aerogel (k ≈ 0.0171 W/mK) only 2x - 4x worse than theoretical performance predictions for commercial gas turbine/


Jet engine. 400 BC, Pythagorass followers Aer Xi Tasman tried to create a spray device, to make a wooden bird along the flight, but failed due to insufficient.

, any possible jet propulsion of any practical value, even in the military purposes." [6] In 1928, the British Royal Air Force College Cromwell Frank Whittles jet engine made a new design. January 1930, Whittle submitted patents jet engine design and in 1932 obtained a patent. Whittle designed the two-stage axial compressor is mounted on a front of a large centrifugal compressor by the turbine driven/


“I GOT WINGS TO FLY AND FEEL THAT I’M ALIVE”. AIRCRAFT- THE FLYING MACHINE AN EPILOUGE OF TIME.

are two ways to produce dynamic upthrust: aerodynamic lift, and powered lift in the form of engine thrust. Heavier-than-air aircraft must find some way to push air or gas downwards, so that a reaction occurs (by Newtons laws /engine or jet turbine. Tip jets, fed by gases passing along hollow rotor blades from a centrally-mounted engine, have been experimented with.Helicopter PICTORIAL DEMONSTRATION OF PROPULSION BASED CLASSIFICATION GLIDER MODELS JET ENGINE FRANK WHITTAL (leutinent of R.A.F.) Jet engines /


ET375 Applied Thermodynamics 09 Thermodynamic Cycles Introduction to Gas Cycles 12/1/131rm.

in engineering analysis, because in a closed system the working fluid executes a complete thermodynamic cycle 12/1/13rm32 Jet Propulsion Cycles In gas turbines used for jet aircraft propulsion, the entire work output from the turbine is used to operate the compressor and auxiliary systems such as electric generators and hydraulic systems In other words, the net work output of the cycle is zero The gases that exit/


49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit

VP Technical Activities Committee Basil Hassan Director Propulsion and Energy Jeff Hamstra 4 Branches, 12 TCs Deputy Director Rocket & Space Propulsion I-Shih Chang Deputy Director Air Breathing Propulsion Deputy Director Advanced Propulsion & Technologies Selma Goldstein Deputy Director Energy David Lilley Hybrid Rockets Brian Evans Gas Turbine Engines Jimmy Kenyon Nuclear & Future Flight Propulsion Chris Taylor Aerospace Power Systems Dick Shaw Liquid Propulsion Scott Forde High Speed Air Breathing/


Center for Intelligent Propulsion & Advanced Life Management Ohio Research Scholar Program (ORSP) Sponsor: Ohio Third Frontier Led By: University of Cincinnati.

open at UC) –Advanced Propulsion Systems Integration (Datta Gaitonde, OSU) –Alternate Fuels and Low Emission Combustion (Heinz Robota, UD), Center Objectives & Technical Areas Benchmarked Areas of Excellence & Funding Sources Aero acoustics Gas Turbine Combustion Turbine Aerodynamics and Heat Transfer Non Destructive Materials Characterization Erosion of Gas Turbine Components Ephraim Gutmark ephraim.gutmark@uc.edu GE (Aviation, Global Research, Power) Reduction of commercial and military jet noise (4 joint/


Robert Graham.  Aircraft engines are propulsion systems for aircrafts.  Early Jet Engines: ◦ 1848 - John Stringfellow: Steam Engine ◦ 1904 - Wright.

good fuel economy were introduced, and jet airlines (gas turbine powered) began carrying passengers in 1958.  In jet engines today, energy is added to the gas stream in the combustor, where air is mixed with fuel and ignited. Combustion increases the temperature, velocity, and volume of gas flow. This is directed through a nozzle over the turbines blades, spinning the turbine and powering the compressor.  Civil & Military Jets ◦ Civil turbofans today have a/


V.I. Golovitchev and L. Montorsi It is described a novel combustion (AL/H 2 O) system and high performance underwater jet engine for marine propulsion.

/H 2 O) system and high performance underwater jet engine for marine propulsion based on the principle of the aeronautical ramjet engine and drag reduction concept, providing, as estimated, higher cruise speed (of about 100 knots) than state-of the-art marine propulsion technology together with simplicity, absence of moving underwater parts, complicated gearboxes, etc., by removal of gas turbines, diesel engine and props. The main elements of/


The Purpose and Function of Airplane Parts

like wings Subject to the same forces that an airfoil is Blades experience low- and high- pressure areas when producing lift Chapter 1, Lesson 3 Courtesy of USAF/SrA Laura Turne Turbines Turbines or jet engines can fly at higher speeds than propellers Turboprop is a turbine engine that turns a propeller Gas turbines depend on oxygen from surrounding air for combustion Chapter 1, Lesson 3 Courtesy/


Applied Thermodynamics

Applied Thermodynamics 3. GAS TURBINES AND JET PROPULSION Introduction: Gas turbines are prime movers producing mechanical power from the heat generated by the combustion of fuels. They are used in aircraft, some automobile units, industrial installations and small – sized electrical power generating units. A schematic diagram of a simple gas turbine power plant is shown below. This is the open cycle gas turbine plant.   Working: Air from atmosphere is compressed adiabatically (idealized) in/


Air-Breathing Propulsion Propulsion & Energy Group ABP TCs Joint Meeting 2014 Science and Technology Forum 13-17 January 2014 National Harbor, MD.

Energetic Components & Systems Hobin Lee Director Propulsion and Energy Jeff Hamstra Director Propulsion and Energy Jeff Hamstra Hybrid Rockets Brian Evans Hybrid Rockets Brian Evans Liquid Propulsion Scott Forde Liquid Propulsion Scott Forde Solid Rockets Mark Langhenry Solid Rockets Mark Langhenry Electric Propulsion Eric Pencil Electric Propulsion Eric Pencil Gas Turbine Engines John Sordyl (A) Gas Turbine Engines John Sordyl (A) High Speed Air Breathing Propulsion Ryan Starkey High Speed Air Breathing/


ABP_GM_011105.ppt 1 AIAA Air Breathing Propulsion Technical Committee 43 rd AIAA Aerospace Sciences Meeting & Exhibit Jeff Hamstra (817) 935-4702

AIAA Air Breathing Propulsion Technical Committee 43 rd AIAA Aerospace Sciences Meeting & Exhibit Public Policy Initiative On VAATE * u VAATE Is A Cooperative USG/Industry Initiative That Provides An Overarching Structure For All U.S. Gas Turbine Engine R&D/ an extension again next year out of fairness to other TCs! u Technical Discipline Area Leads (Turbine Engine, High-Speed Propulsion and Propulsion Integration) are asked to encourage nominations of leaders in their fields. Other TC members are also asked/


Propulsion Devices (Engines) Air-Breathing Use atmospheric air (+ some fuel) as main propellant Rockets Carry entire propellant (liquid/solid fuel + oxygen)

Propulsion Devices (Engines) Air-Breathing Use atmospheric air (+ some fuel) as main propellant Rockets Carry entire propellant (liquid/solid fuel + oxygen) Piston, Gas Turbine and Ramjet Engines Jet-engine.ppt, 10-7-01 Gas Turbine Engines (most aircraft jet engines): Use high-temperature gases to power a propeller or produce direct thrust by expanding and accelerating the exhaust gases through a nozzle. Three main types: Turbojet, Turbofan and Turboprop Jet Engines – Basic/


Class 9: Turbomachine Design Turbomachine comprised of rows of stators and rotors –can be as little as single rotor row (fan) Compressor Modeling –0D:

based on user supplied maps Compressor Turbine W Numerical Propulsion System Simulation (NPSS) NASA Glenn RC Code NPSS is a full propulsion system simulation tool used to predict and analyze the aerothermodynamic behavior of gas turbine engines. NPSS is a numerical "/ Additional Balances Additional Balances Under “Additional Balances” – deactivate the balances previously set-up for Core Size Velocity Jet Ratio Add a new balance for HPC Inlet flow CmpH.WcIn Apply Remember to click “Apply” before executing the/


WCB/McGraw-Hill © The McGraw-Hill Companies, Inc.,1998 Thermodynamics Çengel Boles Third Edition 8 CHAPTER Gas Power Cycles.

.,1998 Thermodynamics Çengel Boles Third Edition Chapter Summary Gas-turbine engines are widely used to power aircraft because they are light and compact and have a high power-to-weight ratio. The ideal jet- propulsion cycle differs from the simple ideal Brayton cycle in that the gases are partially expanded in the turbine. The gases that exit the turbine at a relatively high pressure are subsequently accelerated in/


ENERGY CONVERSION ES 832a Eric Savory www.eng.uwo.ca/people/esavory/es832.htm Lecture 9 – Prime movers and turbomachinery Department of Mechanical and.

System resistance (losses) curves (typically H  Q 2 ) C = operating point Jet propulsion History – Before Turbojets Aeolipile Hero of Alexandria 75 A.D. Rocket Chinese Taoist Chemists 1 st Century Thermojet Henri Coandă 1910 History/ a narrow speed range, used as accessory? TurbopropNot really a jet. A gas turbine driving a propeller. High efficiency at low speed (300- 450 knots) Limited top speed, noisy, complex propeller drive and gearbox. PropfanTurboprop engine with one or more propellers. Like a /


Laser Space Propulsion Overview

% of current costs per kg Micro-, mini- and macro-thrusters Several other promising concepts in laser space propulsion Outline Introduction to Photonic Associates, LLC Terminology and Theory Advantages of Laser Space Propulsion (LSP) Taxonomy Pure Photon Propulsion Propulsion by Laser Gas Detonation Laser Jet Engines Propulsion by Laser Expulsion of Liquids Laser-Electric Hybrids Laser Heat Exchangers Propulsion by Laser Ablation Perspective and Conclusions Terminology for LSP Here are the most/


Air Breathing Propulsion Systems Integration Technical Committee

University Professor O’Brien is being recognized for outstanding technical contributions, creativity, and generosity that have inspired hundreds of students to achieve bright careers in gas turbine and high speed propulsion 22 22 2011-2012 ABP Best Paper Award Congratulations to Dan Baruzzini, Neal Domel, and Daniel Miller of Lockheed Martin Aeronautics Company, Fort Worth, Texas for their Work: “Addressing Corner Interactions Generated by Oblique Shock/


Airplanes 1 Airplanes. Airplanes 2 Introductory Question As you ride in a jet airplane, the clouds are passing you at 600 mph. The air just in front of.

shape in flight Airplane wings often change shape in flight Airplanes have various propulsion systems Airplanes have various propulsion systems Airplanes 4 5 Questions about Airplanes How does an airplane support itself /and that mixture is burned Fuel is added to air and that mixture is burned Expanding exhaust gas does work on turbine Expanding exhaust gas does work on turbine As exhaust leaves nozzle it speeds up and pressure drops As exhaust leaves nozzle it speeds up and pressure drops Airplanes 21 Jet/


Turbine Engine 101.

jet propulsion is: August 27, 1939 First Turbine Powered Flight It was accomplished by Erich Wahrsitz of the Heinkel Aircraft Company, in a HE178 powered by a Heinkel HeS-3b developing 1100 lbs. of thrust and a top speed over 400 MPH. First Turbine Powered Flight Subsequent German development produced the: ME262 with a top speed of 500 MPH. “German ME262” Types Of Turbine Engines The Gas Turbine/


Thermal Transpiration-Based Microscale Combined Propulsion & Power Generation Devices Francisco Ochoa, Jeongmin Ahn, Craig Eastwood, Paul Ronney Dept.

) Modeling of thermal transpiration n Net flow is the difference between thermal creep at wall and pressure-driven return flow n Analysis by Vargo et al. (1999): n Zero-flow /propulsion Theoretical performance of aerogel rocket or jet engine n Can use usual propulsion relations to predict performance based on Vargo et al. model of thermal transpiration in aerogels n Non-dimensional TFSC of silica aerogel (k ≈ 0.0171 W/mK) only 2x - 4x worse than theoretical performance predictions for commercial gas turbine/


Gas Turbine Technology : Flying Machine to Ground Utilities P M V Subbarao Professor Mechanical Engineering Department A White Collar Power Generation.

Curtis. 1918: One of the leading gas turbine manufacturers of today, General Electric, started their gas turbine division. 1920: The practical theory of gas flow through passages was developed into the more formal (and applicable to turbines) theory of gas flow past airfoils by Dr A. A. Griffith. 1930: Sir Frank Whittle patented the design for a gas turbine for jet propulsion. THE WORLD‘S FIRST INDUSTRIAL GAS TURBINE SET – GT NEUCHÂTEL 4/


Water Vehicular Systems

large vessels steering is done by rudders – hinged vertical surfaces usually located near the output of the propulsion source. Diving and Rising Systems: Submersibles of ten carry weights that pull them down to the desired depth. They have compartments/turboelectric generators, gas turbines, and even nuclear reactors are used to power propellers. Water Jets: They use an inboard engine to turn an impeller. The impeller draws in water and expels it through a nozzle. The water forced out of the jet propels the/


place where air is expanded and accelerated rearward by the turbine, creating energy needed for reaction of the aircraft.

of propulsion a passage which becomes continuously larger in the direction of flow Divergent duct a part of the engine that collects and straightens the gas flow as it leaves the turbines, /and computing thrust standard day a propulsion system having a fan that is directly connected to and driven by a turbine and is used to supply air for cooling, ventilation, or combustion turbofan engine the forward force produced in reaction to escaping gases in jet propulsion thrust a propulsion system having a turbine/


Turbine Engine 101. Topics History of turbine engine design. Types of turbine engines. Common turbine engine models found on todays private and corporate.

jet propulsion is: August 27, 1939 First Turbine Powered Flight It was accomplished by Erich Wahrsitz of the Heinkel Aircraft Company, in a HE178 powered by a Heinkel HeS-3b developing 1100 lbs. of thrust and a top speed over 400 MPH. First Turbine Powered Flight Subsequent German development produced the: ME262 with a top speed of 500 MPH. “German ME262” Types Of Turbine Engines The Gas Turbine/


Jetting and vortices A canoe paddle pulled through still water on a lake trails small vortices behind, spinning off the paddle edges. Motion in fluid creates.

squid siphon does. Telescoping in and out of abdominal segments changes abdomen volume and so haemocoel pressure which powers water intake and outflow; filaments filled with tracheae* project into rectum lumen for gas exchange. nozzle *Gas exchange in insects via tracheal system of air tubes. Jetting used to ‘launch at prey’ or ‘escape when disturbed’ or ‘in water without a foothold’. Jet propulsion in insects is limited to/


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