Background on engine types
for aircraft propulsion
References
References of the figures presented on slides 1 to
75 are given on slides 119 to 121
Aircraft propulsion engine types
(a) Piston engine
Powered all aircraft until arrival of gas turbine engines

Transnet Bursary Applications
Introduction
Transnet is a focussed and integrated freight transport company which is
essentially driven by five operating divisions Transnet Freight Rail,
Transnet
Rail
Engineering,
Transnet
National
Ports
Authority,
Transne

Applied Mathematics 1A
Toegepaste Wiskunde 1A
Supplementary Problems on Statics
Aanvullende Probleme oor Statika
North Americans have a confusing custom of
using the same name for the unit of mass as well
as that for force, viz. the pound (abbreviated
as

Applied Mathematics 1A
Toegepaste Wiskunde 1A
Supplementary Problems on Statics
Aanvullende Probleme oor Statika
North Americans have a confusing custom of
using the same name for the unit of mass as well
as that for force, viz. the pound (abbreviated
as

Applied Mathematics 1A
Toegepaste Wiskunde 1A
Supplementary Problems on Statics
Aanvullende Probleme oor Statika
North Americans have a confusing custom of
using the same name for the unit of mass as well
as that for force, viz. the pound (abbreviated
as

Universiteit van / University of
Johannesburg
Toegepaste Wiskunde 1A / Applied Mathematics 1A
TOETS: 6 Maart 2008
PUNTE: 25
TYD:
60 minute
TEST:
6 March 2008
MARKS: 25
TIME:
60 minutes
OPMERKINGS
(i) Vektore word deurgaans aangedui deur n vet
lettertipe,

Applied Mathematics 1A
Toegepaste Wiskunde 1A
Supplementary Problems on Statics
Aanvullende Probleme oor Statika
North Americans have a confusing custom of
using the same name for the unit of mass as well
as that for force, viz. the pound (abbreviated
as

Applied Mathematics 1A
Supplementary Problems
In the text from which these problems have been extracted, the following notation is used:
i=i;j=g); k=2
Exercise 3
1 Find the value of A for which the vectors (2i ~ 3j + k) and (3i + 6j + 2k) are per-
pendicu

Applied Mathematics 1A
TEST: 11 March 2010
MARKS: 25
TIME: 60 minutes
REMARKS
(i) Vectors are indicated throughout by bold face type, for instance a.
(ii) You will be penalized if you fail to distinguish correctly between scalars and vectors by means of
n

TMS3A11
1
Exercise 1
(Control Volume Application of 2ND Law)
-Q1.
Consider a steam turbine in which the steam enters as superheated vapor at 800 K and 6
MPa and exits at 0.1 MPa. The flow rate of the steam is 15 kg/s and the isentropic efficiency
of the t

Lecture 1:Entropy Equation for a Control Volume
Section Enabling Objectives
Extend 2ND Law to more general control volumes
Apply 2ND law to steady state devices such as turbines,
compressors, nozzles etc
Apply thermodynamic theory to real devices using ef

Thermomachines TRM 4A11
1st semester 2017
Environmental issues of gas turbine engines
Air pollution
Noise
Environmental issues of
gas turbines
Applicable sections in CRSS
Environmental issues, pp. 34 36, Section 1.7
Some important factors affecting combus

Thermomachines TRM4A11
1st semester 2016
Week 2 part 2
Further modifications to simple ideal gas turbine cycle:
Ideal cycle with reheat
Ideal cycle with reheat and heat exchange
Ideal cycle with intercooled compression (intercooling)
Ideal cycle with rehe

Thermomachines TRM 4A11
1st semester 2017
Part 2 of curriculum
Reciprocating Internal Combustion Engines
(RICEs)
Textbook for RICE part of TRM4A11
Pulkrabek, W.W., Engineering Fundamentals of the
Internal Combustion Engine, Pearson New International
Editi

Thermomachines TRM 4A11
1st semester 2017
Week 3 part 2
Chapter 2 shaft cycles conclusion
Homework for Friday 2017-03-03
Gas turbine cycles for aircraft propulsion
Differences between aircraft- and land-based gas turbines
Aircraft gas turbine configura

Week 3: Shaft power cycles
Ideal cycles part 3
Component losses
Polytropic efficiency, Cascading of small stages example,
Pressure losses, HE effectiveness, Mechanical losses,
Variation in specific heats, Fuel-air ratio, Combustion
efficiency, Cycle effi

Thermomachines TRM4A11
1st semester 2016
Week 2
Ideal, simple gas turbine thermal efficiency ito pressure ratio
Effect of g on cycle thermal efficiency
Simple gas turbine work
Class example: Ideal simple gas turbine cycle
Net specific work in terms of max

Lecture 2:Irreversibility and Availability
Module Enabling Objectives
Define and understand the concept of available energy
Identify the difference between energy and availability (exergy)
Understand the difference between the first and second law
efficie

ENABLING OBJECTIVES
Illustrate the various physical arrangements used in steam power
plants and refrigeration
To determine the ideal thermodynamic efficiencies associated
with various thermodynamic cycles of working fluid
Apply general laws of thermodynam

ENABLING OBJECTIVES
Write the combustion equation for the stoichiometric reaction of any
fuel
Handle the combustion of fuel mixtures as well as moist air oxidizer
Apply the first law of thermodynamics to the combustion of fuel
mixtures
Deal with the conde

ENABLING OBJECTIVES
What do we aim to achieve in this section?
Define and understand the concept of available energy
Identify the difference between energy and availability
(exergy)
Understand the difference between the first and second
law efficiency