# ENRG07025 2019 Energy Systems 2

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**Description**

Energy Systems 2 is a continuation from Energy Systems 1, again focused on Thermodynamics and Fluid Mechanics.

Fluid mechanics will treat topics such as: (i) equations of state, conservation of energy, determining fluid properties from tables, diagrams, analysis of closed systems and steady-flow. (ii) Turbo machinery such as pumps and turbines, (iii) Lift and drag, bluff bodies, airfoils and other related applications. (iv) Fundamental physical variables, dimensionless quantities (e.g. Re), dimensional analysis to solve problems in fluid mechanics

The thermodynamics section will cover: (i) Perfect (Carnot) and ideal (Rankine/Otto) cycles, (ii) practical conduction problems involving multiple materials, thermal resistance, contact resistance, and using insulation, (iii) Heat transfer in forced convection, including laminar and turbulent flows, in various engineering scenarios and for a range of geometries, internal and external. (iv) Natural or free convection, the governing Dimensionless numbers, and related equations and correlations.

### Learning Outcomes

*On completion of this module the learner will/should be able to;*

**1.**

Evaluate fluid properties and solve basic problems using property tables, property diagrams, equations of state and be able to use this knowledge to analyse practical closed systems and steady-flow devices in conjunction with the conservation of energy principle.

**2.**

Derive, quantify and formulate problems involving turbo machinery. Apply principles to solving problems involving the same.

**3.**

Derive, quantify and formulate problems involving lift and drag around bodies, airfoils and other related applications. Apply principles to solving problems involving the same

**4.**

Define the fundamental physical variables of fluid mechanics and associated dimensionless quantities (e.g. Reynolds number), and further apply dimensional analysis to problems in fluid mechanics

**5.**

Determine values for pressure, temperature, and volume, plus cycle efficiency for perfect (Carnot) and ideal (Rankine/Otto/Diesel/Dual) gas power cycles.

**6.**

Solve practical conduction problems involving multiple materials using thermal resistance, U-values, contact resistance, and the critical radius of insulation.

**7.**

Solve basic problems in forced convection, using knowledge of laminar and turbulent flows, entrance region and fully developed flow, flow across flat plates, cylinders in cross flow, tube arrays.

**8.**

Analyse free convection using knowledge of buoyancy, velocity and thermal boundary layers, relevant dimensionless numbers, and governing equations and correlations.

### Teaching and Learning Strategies

The course will be delivered primarily by lecture where key concepts will be explained and followed through with graded exercises leading on to practical problem examples. Repetitive (property and steam tables, interpolations) exercises will be supplemented on Moodle outside of class to ensure student fluency and proficiency. Two mini-assignment or projects comprising an industrial design brief for a fluidic and a thermal application will form self-learning components of the module.

### Module Assessment Strategies

This subject will be assessed by two midterm projects and end of term assessment.

### Repeat Assessments

Repeat assessment will be by way of sitting another examination on the subject. Alternatively, at the discretion of the lecturer, assignments covering the deficient areas of the course may be set.

### Indicative Syllabus

- Conduction: practical conduction and insulation issues, thermal resistance, the composite wall, contact resistance, radial conduction, critical radius of insulation.
- Fundamentals of natural convection: density and buoyancy, Grashof Number, Prandtl No. velocity, laminar and turbulent flows, thermal boundary layers, governing equations and related correlations, Reynolds analogy.
- Fundamentals of forced convection: Velocity and thermal boundary layers, governing equations and related correlations, Nusselt No., internal and external flows, Laminar, turbulent and separated flows; flat plates, cylinders in cross flow, tube arrays, jet impingement, entrance region and fully developed flow, flow in pipes and ducts.
- Fundamentals of lift and drag, basics of Aerodynamics related to vehicles, aircraft.
- The airfoil, terminology, stall, lift generation, Angle of Attack, Principles of flight
- Dimensional Analysis and modelling
- Flow over bluff bodies, turbulence, formation of eddies, vortices, Karman vortex streets

**Lab Classes**

Wind tunnel, airfoils, heat flow through a solid, heat flow through fluids

### Coursework & Assessment Breakdown

**Coursework & Continuous Assessment**

**End of Semester / Year Formal Exam**

### Coursework Assessment

Title | Type | Form | Percent | Week | Learning Outcomes Assessed | |
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1 | Mini Assignments | Continuous Assessment | Assignment | 30 % | OnGoing | 1,2,3,4,5,6,7,8 |

### End of Semester / Year Assessment

Title | Type | Form | Percent | Week | Learning Outcomes Assessed | |
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1 | Final exam | Final Exam | Closed Book Exam | 70 % | End of Term | 1,2,3,4,5,6,7,8 |

### Full Time Mode Workload

Type | Location | Description | Hours | Frequency | Avg Workload |
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Lecture | Flat Classroom | Lecture | 4 | Weekly | 4.00 |

Laboratory Practical | Engineering Laboratory | Practical Laboratory Class | 1 | Weekly | 1.00 |

### Required & Recommended Book List

**Required Reading**

20/10/2020

*Thermodynamics An Engineering Approach*McGraw Hill

ISBN 1259822672 ISBN-13 9781259822674

**Required Reading**

2006-04-07

*Introduction to Heat Transfer*Wiley

ISBN 0471457272 ISBN-13 9780471457275

Noted for its readability, comprehensiveness and relevancy, the new fifth edition of this bestselling book provides readers with an accessible examination of the heat transfer field. Theyll gain a better understanding of the terminology and physical principles for any process or system involving heat transfer. And theyll find out how to develop representative models of real processes and systems, and draw conclusions concerning process/systems design or performance from the attendant analysis.

**Required Reading**

2019

*Fundamentals of Thermodynamics*

ISBN 1119494966 ISBN-13 9781119494966

**Required Reading**

2012-05-15

*Fundamentals of Fluid Mechanics*Wiley

ISBN 1118116135 ISBN-13 9781118116135

Fundamentals of Fluid Mechanics, 7th Edition offers comprehensive topical coverage, with varied examples and problems, application of visual component of fluid mechanics, and strong focus on effective learning. The text enables the gradual development of confidence in problem solving. The authors have designed their presentation to enable the gradual development of reader confidence in problem solving. Each important concept is introduced in easy-to-understand terms before more complicated examples are discussed. Continuing this book's tradition of extensive real-world applications, the 7th edition includes more Fluid in the News case study boxes in each chapter, new problem types, an increased number of real-world photos, and additional videos to augment the text material and help generate student interest in the topic. Example problems have been updated and numerous new photographs, figures, and graphs have been included. In addition, there are more videos designed to aid and enhance comprehension, support visualization skill building and engage students more deeply with the material and concepts.

**Required Reading**

2016-03-21

*Fundamentals of Aerodynamics*McGraw-Hill Education

ISBN 1259129918 ISBN-13 9781259129919

Fundamentals of Aerodynamics is meant to be read. The writing style is intentionally conversational in order to make the book easier to read. The book is designed to talk to the reader; in part to be a self-teaching instrument. Learning objectives have been added to each chapter to reflect what is believed to be the most important items to learn from that particular chapter. This edition emphasizes the rich theoretical and physical background of aerodynamics, and marbles in many historical notes to provide a background as to where the aerodynamic technology comes from. Also, new with this edition, are "Integrated Work Challenges" that pertain to the chapter as a whole, and give the reader the opportunity to integrate the material in that chapter, in order to solve a "bigger picture". McGraw-Hill Education's Connect, is also available as an optional, add on item. Connect is the only integrated learning system that empowers students by continuously adapting to deliver precisely what they need, when they need it, how they need it, so that class time is more effective. Connect allows the professor to assign homework, quizzes, and tests easily and automatically grades and records the scores of the student's work. Problems are randomized to prevent sharing of answers an may also have a "multi-step solution" which helps move the students' learning along if they experience difficulty.