# Detailed module information

Module information on this degree can be found below, separated by year of study.

The module information below applies for the current academic year. The academic year runs from August to July; the 'current year' switches over at the end of July.

Students select optional courses subject to rules specified in the Mechanical Engineering Student Handbook,  for example at most three Design and Business courses. Please note that numbers are limited on some optional courses and selection criteria will apply.

## Heat Transfer

### Module aims

To develop an understanding of the physics of heat transfer and to quantify them. Topics include steady conduction, transient conduction, convection, radiation, and heat exchangers. For all of these topics, practical implementation through solving small design-like problem is studied.

ECTS units: 5

### Learning outcomes

To recall the principal terminology, concepts and theories of heat transfer by conduction, convection and radiation.

To solve simple problems involving heat conduction, convection and radiation for solids and fluids in simple geometries.

To apply design methods to simple engineering calculations on: wall conduction, fins, cooling or heating of bodies immersed in a fluid, transient heat transfer, convection boundary layers and heat exchangers.

To evaluate and explain the significance of dimensionless groups used to characterise heat transfer problems and data.

To translate simple problems involving components, systems and heat exchangers into a form which can be solved using mathematical methods.

The student will be able to augment and integrate the study of a technical subject, in this case Heat Transfer, by making extensive and efficient use of a comprehensive textbook, such as Incropera’s.

### Module syllabus

Heat transfer mechanisms: conduction, convection, radiation; common engineering occurrences and the importance.

Conduction and convection: thermal conductivity and heat transfer coefficient; Fourier's and Newton's laws; heat diffusion equation; thermal resistance of plane and cylindrical walls and fluid boundary layers; thermal resistance networks; overall heat transfer coefficient; fins.

Convection and thermal boundary layers: forced and free convection; external and internal convection; heat transfer correlations; Nusselt, Prandtl and Grashof numbers; Reynolds analogy. Pool boiling (phenomenological description).

Unsteady conduction in space and time: lumped capacitance; Fourier and Biot numbers; one-dimensional conduction with convective boundaries; conductors with internal energy generation.

Heat exchangers: counter flow, co-flow; effectiveness, NTU number.

Radiation: Stefan-Boltzman law; black and grey bodies; emission and absorption; radiosity; Kirchhoff's law.

None

### Teaching methods

 Allocation of study hours Hours Lectures 24 Group teaching 10 Lab/ practical Other scheduled Independent study 91 Placement Total hours 125 ECTS ratio 25

### Assessments

 Assessment type Assessment description Weighting Grading method Pass mark Must pass? Examination 1.5 Hour exam 95% Numeric 40% Y Examination Progress test 5% Numeric 40% N