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

Slides:

Advertisements

Similar presentations

JET ENGINE MECHANICAL ARRANGEMENT

Advertisements

Lecture #12 Ehsan Roohi Sharif University of Technology Aerospace Engineering Department 1.

U3AEA04 ELEMENTS OF AERONAUTICS

JET PROPULSION Part 3 The Jet Engine.

LESSON TEN. AIR AND EXHAUST SYSTEMS AND TURBOCHARGERS.

Jet Engine Design Idealized air-standard Brayton cycle

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

Jet Engine Design diffuser compressor combustion chamber turbine nozzle P=constant q out q in T s 1-2 Isentropic compression in.

Jet Engines Engine Review Back to School – Spring Break is Over!

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.

Introduction to Propulsion

Aircraft Engines Types and Placement.

Four Stroke Cycle Engine

Heat Engines. The Heat Engine  A heat engine typically uses energy provided in the form of heat to do work and then exhausts the heat which cannot.

GAS POWER CYCLES Chapter 9. Introduction Two important areas of application for thermodynamics are power generation and refrigeration. Two important areas.

Section 16.3 Using Heat.

Lecture 3b: Aircraft Engines

JET PROPULSION Part 4 Types of Jet Engines.

FLIGHT POWER Know basic engine principles. 1. Define a list of terms related to basic engine principles. 2. Describe the various types and components of.

Gas turbine cycles for aircraft propulsion In shaft power cycles, power is in form of generated power. In air craft cycles, whole power is in the form.

Thermodynamics Professor Lee Carkner Lecture 18

How do aircraft jet engines work?

Thermal energy Ch. 6 mostly. Transferring thermal NRG There are three mechanisms by which thermal energy is transported. 1. Convection 2. Conduction 3.

JET PROPULSION Part 2 Combustion.

Jet propulsion and Jet Engines

Thrust Lecture 8 Chapter 4. Thrust Thrust is the force that must be generated in order to overcome the natural resistance of drag. Because drag is the.

Introduction of jet engine

Analysis of Turbofan Engine

AE 1350 Lecture Notes #13.

GAS TURBINE ENGINES BY SUDHA.P

Test Review Aerodynamics. Aerodynamic forces Bernoulli's principle The relationship between the velocity and pressure exerted by a moving liquid is described.

Gas Power Cycle - Jet Propulsion Technology, A Case Study

MECHANICAL ENGINEERING

8 CHAPTER Gas Power Cycles.

Gas Power Cycles.

1. AGV – (Automated Guide Vehicle) Robots that move by following a set path.

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

Jimmy Luo. HistoryHow It WorksCurrent Applications History.

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

Gas Turbine Theory and Construction

Gas Turbine Theory and Construction. Introduction Comprehend the thermodynamic processes occurring in a gas turbine Comprehend the basic components of.

AIRCRAFT ENGINE Lecture 4

Jet Propulsion.

Jet Engines Engine Review Back to School – Spring Break is Over!

How does an Airplane Fly? Forces on an Airplane in Flight The four aerodynamic forces that act upon an airplane in flight are lift (the upward.

Lecture 3b: Aircraft Engines s: Propeller + Piston Engines Era  From 1903 (Wright bros.) until the Early 1940s, all aircraft used the piston.

 FAN  COMPRESSOR  COMBUSTOR  TURBINE  MIXER  NOZZLE.

POWERPLANT INTRO TO TURBINES PP2 Spokane Community Community College College.

WORK Work = Force x Distance POWER power = work done ÷ time taken ENERGY 1-POTENTIAL ENERGY (Potential Energy = Force x Distance ) 2-KINETIC ENERGY Energy.

Des. Ton Nguyen. MAIN PARTS  Fan  Compressor  Combustor  Turbine  Nozzle.

Utilizing your notes and past knowledge answer the following questions: 1) What are the two basic types of engines? 2) What is the stroke called when the.

Prepared by: Kamil Bin Sahidin

Gas Turbine Theory and Construction

Identify Types of Aircraft Engines

Basic ideas of aircraft Engines

Jet Engine, How does it work ?

Types of Aircraft Engines

Jet Engines Aerospace.

Performance Analysis of Ramjet Engines

ENGINE PERFORMANCE The performance data for takeoff and landing an aircraft can be obtained from the aircraft's flight manual or pilot's operating handbook.

Ch. 10 Heat Transfer in Engines

Chapter 5 (Mattingly) By: Ehsan Roohi

Jet Aircraft Propulsion

Propulsion Systems Aircraft, Rocket, Space © 2011 Project Lead The Way, Inc.Aerospace Engineering.

Gas turbines Newer type of internal combustion engine.

Presentation transcript:

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, 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 Operation Air enters the trough the intake duct (cowl). Air compressed by passage through the compressor. Mixed with fuel in the combustion chamber. Fuel is ignited, Pressure and Temperature raised Some of the pressure used to turn a turbine; Turbine shaft drives the compressor. Hot, high pressure air forced through a nozzle. The reaction force is the engine thrust.

Jet Engine – Common Types

Turbojets: Turbine used to drive the compressor. All intake air passes through the combustion chamber and exits through the nozzle. All thrust produced by hot, high-speed exhaust gases. Turbofans (Fan-Jet): A large propeller in the intake cowl, in front of compressor. Dramatically increases the amount of air pulled in the intake. Only a small percentage passed through the engine, the rest of cold air is Bypassed. Part of the thrust through the hot exhaust gases and part by the cold bypassed air. Produces cooler exhausts and quieter engines. High by-pass ratio are most commonly used in larger commercial aircraft. Turboprops: Jet engine used to turn a large propeller, which produces most (90% or more) of the thrust. Used in smaller aircraft. Jet Engine – Common Types

Pratt-Whitney Engine Gallery GE90 Engine

Jet Engine Combuster Film cooling via convection

One annular section Turbulent flame (fuel self-ignited) Use spark plug to start the engine and re-light after flameout Flame stabilization