# FEEG1003 ThermoFluids

## Module Overview

Core Thermodynamics and Fluid Mechanics for all Engineering Themes.

### Module Details

**Title: **ThermoFluids**Code: **FEEG1003**Semester: **Full Academic Year

**CATS points: **15** ECTS points: **7.5**Level: **Undergraduate

## Aims and objectives

#### Knowledge and Understanding

Having successfully completed this module, you will be able to demonstrate knowledge and understanding of:

- The properties of thermofluid flow and methods of analysis, including conservation principles for mass, momentum and energy.
- A framework for advanced courses by introducing and classifying common engineering applications.
- Concepts of laminar and turbulent flow, boundary layers, bluff body and streamlined flow, transition, separation and cavitation.
- The energy conversion processes involving heat, work and energy storage.
- The application of thermodynamic principles to the propulsion of land, sea and air transport and in the generation of power.

#### Subject Specific Intellectual

Having successfully completed this module, you will be able to:

- Understand important thermofluids properties and principles in fluid mechanics.
- Perform straightforward analysis of examples of mass, momentum and energy conservation.
- Use dimensional analysis in appropriate ways and explain the physical meaning of various non-dimensional parameters.
- Assess simple flows and their behaviour from fundamental information such as the value of the Reynolds number and the shape of the body.
- Analyse various thermal processes and plant.

#### Transferable and Generic

Having successfully completed this module, you will be able to:

- Study and learn independently.
- Communicate work in written reports.
- Demonstrate study and time management skills.
- Solve problems.
- Appreciate sustainability and ethical issues in engineering

#### Subject Specific Practical

Having successfully completed this module, you will be able to:

- Critically analyse results.
- Produce scientific reports describing laboratory experiments.

## Syllabus

Part 1 : Tools of the trade (14 lectures)

Part 1.1 : Applied Math Tools (an overview of what should be understood coming into this course)

- Applied maths overview (basic integration, including over surfaces, differentiation, Taylor series, Newton’s Law, some thermodynamic principles

Part 1.2 : Conceptual Principles in Thermofluids

- An extension of A level applied maths/physics (mass, force, acceleration, rates of change, moments), mass, force, acceleration, forms of energy (potential, kinetic, thermal, but not its conversion), and support this by a definitive nomenclature for the remainder of the course.
- Solids/liquids/gases from a molecular description – first introduction to pressure, the equilibrium state.
- Bulk modulus and compressibility
- The continuum approximation
- Other thermofluid approximations
- Properties of a fluid, and properties of a flow of fluid
- Ideal gases and the gas law (thermodynamic pressure), definitions of heat and work, sign conventions, types of non-flow processes, p-V diagrams, First Law of thermodynamics.
- Convection (bulk transport)
- Diffusion (molecular transport of momentum/shear stress and energy)
- Systems and control volumes, surface flux, the conservation principle.
- Fundamental and derived quantities.
- Intensive and extensive properties.
- Dimensions and units, Dimensional homogeneity.
- The importance of length, velocity, time scales in a problem.
- Present several non-dimensional numbers and explain what they represent in terms of force/ timescale ratios etc and demonstrate how they are used to maintain similarity.
- Buckingham Pi (brief introduction here, used throughout the remainder of the course)

Part 2 : Thermofluid Mechanics

Part 2.1 : Fluid Statics – 4 lectures

- Static pressure, Pascal’s law
- Hydrostatic equation, manometry, and demonstration of potential energy
- Forces on planar and curved gates, moments etc
- Buoyancy and stability
- Non-dimensional analysis.

Part 2.2 : Inviscid Flow/Conservation Equations - 12 lectures

- Streamlines/tubes
- Rotation, vorticity, irrotational flow
- Acceleration, Eulers equation
- Conservation of mass
- Conservation of Energy

– Bernoulli’s equation, cavitation

– flow measurement

– mechanical energy losses, pressure drop in pipes

– Steady flow Energy Equation, nozzles, throttles, heat exchangers etc

– examples

- Conservation of Momentum

– Momentum as a vector quantity

– Force – momentum equation

– Fluid Drag and Wakes

– examples

Part 2.3 : Viscous Flow – 4 lectures

- Couette and Pipe flows
- Streamline flows, bluff bodies, separation
- Boundary layers
- Turbulence

Part 3 : Thermal energy systems (10 lectures)

- Introduction to the Second Law of Thermodynamics.
- Definition of the heat engine and cycle efficiency.
- The Carnot heat engine.
- Reversed heat engines (heat pump and refrigerator) and coefficient of performance.
- Reversible and irreversible processes. Corollaries of the second law. Definition of entropy and its use in engineering thermodynamics.
- Entropy change in isothermal and adiabatic processes. Isentropic processes.
- Introduction to cycles. The Otto, Diesel and Brayton cycles and their applications.

## Learning and teaching

### Teaching and learning methods

*Teaching methods include:*

- Lectures and videos of lecture material
- Example problems
- Laboratories
- AV presentations

*Learning activities include:*

*Directed reading**Problem solving**Practical classes*

Activity | Description | Hours |
---|---|---|

Lecture | 30 |

### Resources and reading list

Course notes will be provided.

Problem books and lab sheets will be provided.

Bespoke Textbook Available

## Assessment

### Assessment methods

Assessment Method | Hours | % contribution to final mark |
---|---|---|

Coursework Courseworks 1 of 5 |
4% | |

Labs Lab 1 of 5 |
2% | |

Coursework Courseworks 2 of 5 |
4% | |

Coursework Courseworks 3 of 5 |
4% | |

Coursework Courseworks 4 of 5 |
4% | |

Coursework Courseworks 5 of 5 |
4% | |

Labs Lab 2 of 5 |
2% | |

Labs Lab 3 of 5 |
2% | |

Labs Lab 4 of 5 |
2% | |

Labs Lab 5 of 5 |
2% | |

Exam | 2 hour(s) | 70% |