EEEN10027 - Energy Transport And Conversion

Requisites

Aims

The programme unit aims to:

Provide an introduction to the mechanisms used in electrical engineering to produce electrical energy, transform it into mechanical energy and to the transmission of electrical energy over the power system to the point of utilisation.

Brief Description

Brief description of the unit:

The various sources and forms of energy are discussed and the principles governing mechanics, AC electrical circuits, energy conversion and electrical transmission are described. The course covers four main topics:

(1) mechanical definitions, basic mechanics and DC machines

(2) steady state AC circuit theory including real and reactive power

(3) the demand for electrical energy and conventional and renewable forms of electrical generation and their impact on the environment, and

(4) why the existing electrical power system has its present structure.

(1) Mechanics And Electrical Machines (6 lectures): Units and dimensions; velocity and acceleration; resolution of forces; NewtonÂs laws of motion; torque; friction; systems in equilibrium; energy (potential and kinetic); power; angular motion; conversion of energy; momentum; thermal energy; simple harmonic motion; damped and forced oscillations, force production in machines, DC machines.

(2) AC Circuit Theory (4 lectures): Analysis of circuits with AC sinusoidal excitation; impedance; admittance; reactance; susceptance; complex notation; use of phasor diagrams; real, reactive and apparent power; power factor; mutual inductance.

(3) Demand and generation (3 lectures):Demand for electrical energy (1 lecture)

Principles of energy conversion; conventional and renewable generation technologies (1 lecture) Matching generation and demand (1 lecture).

(4) Electrical Power Systems (7 lectures): Why use ac rather than dc transmission? Structure of transmission and distribution networks (1 lecture) 3 phase systems (2 lectures) Calculation of voltage and flows in a two-bus system (2 lectures) Transmission capacity (2 lectures)

Learning Outcomes

Students will be able to:

Knowledge & understanding:

• Explain the basic principles of mechanics and AC circuit theory
• Explain the principles of conventional and renewable electricity generation and the matching of generation and demand

Intellectual skills:

• Investigate and analyse simple mechanical and electrical systems

Practical skills:

• Perform simple circuit calculations involving phasors, three phase systems as well as real and reactive power

Transferable skills & personal qualities:

• Assimilate and communicate a technical understanding of modern power systems including renewable sources of energy

Teaching & Learning Process (Hours Allocated To)

Assessments

Unseen Written Examination:

Ten to tweleve short questions, answer all questions

Duration: 1 hour 30 minutes

Calculators are permitted

The unseen written examination forms 70% of the unit assessment

Unseen In-class Test:

Ten to twenty short questions, answer all questions

Duration: 1 hour

Calculators are permitted

This test forms 10% of the unit assessment

Coursework 1:

Two laboratory sessions

Laboratory duration: 3 hours (each)

Laboratory assessment: via written report

Coursework 1 forms 10% of the unit assessment

Coursework 2:

Tutorial questions

As defined by tutorial schedule

Coursework 2 forms 10% of the unit assessment

Staff Involved