ENME315-23S2 (C) Semester Two 2023

# Heat Transfer

15 points

Details:
 Start Date: Monday, 17 July 2023 End Date: Sunday, 12 November 2023
Withdrawal Dates
Last Day to withdraw from this course:
• Without financial penalty (full fee refund): Sunday, 30 July 2023
• Without academic penalty (including no fee refund): Sunday, 1 October 2023

## Description

This course provides a comprehensive introduction to heat transfer fundamentals and their applications. The course introduces students to the analysis of steady-state and transient one- and multi-dimensional heat conduction. The course considers the analysis of heat transfer by convection using empirical and boundary layer approximations. Radiation heat transfer is considered with applications to multi-body radiation.

## Learning Outcomes

1. Understand a thermal system, develop the schematic diagram for the system, and apply energy balance and heat transfer models to develop governing equations.
2. Set up and solve for heat transfer rates as a function of geometry and materials in 1-D conduction using various tools:
i. Material Properties
ii. Fourier’s Law
iii. Circuit Analogy
3. Estimate heat transfer from Extended Surfaces, Radial Geometry, and involving Energy Generation.
4. Construct a transient heat transfer analysis, testing for the lumped capacitance approximation and understanding the assumptions.
5. Understand the approach for setting up numerical analysis of heat transfer.
6. Understand a thermal system with convection heat transfer, construct a schematic diagram for the system, characterize the geometry and flow conditions, and apply the appropriate convection models:
i. Boundary layer effects, laminar and turbulent flow
ii. Similarity solutions and non-dimensional parameters
iii. Reynold’s analogy
iv. Boundary conditions – derivation of energy balance
v. Use convection correlations for Nusselt Number
7. Understand and model external forced convection heat transfer.
8. Understand and model internal forced convection heat transfer.
9. Understand and model natural convection heat transfer.
10. Understand the phenomena of boiling and condensation.
11. Understand heat exchangers and carry out analysis to select and size heat exchangers for liquid-liquid, liquid-gas, gas-gas, and condensers and boilers.
12. Understand key aspects of radiation heat transfer and solve simple problems. Understand radiative properties and models like black body, surface emission and radiosity.
13. Understand and estimate view factors and compute radiation exchange between grey surfaces.

## Prerequisites

ENME215 or ENME204

ENME305

## Timetable 2023

Students must attend one activity from each section.

Activity Day Time Location Weeks Lecture A 01 Monday 09:00 - 10:00 Meremere 108 Lecture Theatre 17 Jul - 27 Aug 11 Sep - 22 Oct Lecture B 01 Tuesday 10:00 - 11:00 A2 Lecture Theatre 17 Jul - 27 Aug 11 Sep - 22 Oct Lecture C 01 Wednesday 11:00 - 12:00 A2 Lecture Theatre 17 Jul - 27 Aug 11 Sep - 22 Oct Lecture D 01 Thursday 12:00 - 13:00 Rata 222 & 223 Drawing Office (20/7) A3 Lecture Theatre (27/7-10/8, 24/8, 14/9-19/10) E5 Lecture Theatre (17/8) 17 Jul - 27 Aug 11 Sep - 22 Oct Tutorial A 01 Friday 12:00 - 13:00 Rata 222 & 223 Drawing Office 17 Jul - 27 Aug 11 Sep - 22 Oct Tutorial B 01 Wednesday 15:00 - 16:00 Rehua 005 7 Aug - 13 Aug 18 Sep - 24 Sep 16 Oct - 22 Oct

## Examination and Formal Tests

Activity Day Time Location Weeks Test A 01 Thursday 18:30 - 19:30 A1 Lecture Theatre 7 Aug - 13 Aug Test B 01 Thursday 18:30 - 19:30 A1 Lecture Theatre 18 Sep - 24 Sep Test C 01 Thursday 18:30 - 19:30 A1 Lecture Theatre 16 Oct - 22 Oct

## Assessment

Assessment Due Date Percentage  Description
Homework & Labs 10% 12 x Weekly Homework's Labs: 10am 11 September
Quiz 1 10 Aug 2023 15%
Quiz 2 21 Sep 2023 15%
Quiz 3 19 Oct 2023 15%
Final Exam 45%

## Notes

For detailed course, policy, regulatory and integrity information, please refer to the UC web site, or see relevant Course or Department LEARN pages, (which are available to enrolled students).

Harassment
* Harassment of any sort will not be tolerated.  Each UC student is here to learn and to experience a friendly and supportive community.
* It is every student's right to expect: respect and courtesy from staff and other students, including freedom from harassment of any sort; fair treatment; the ability to speak out about any issues that concern them, without fear of consequences for their safety and well-being.
* Furthermore, each student has the responsibility to: respect the rights and property of others; attend to their own health and safety, and that of others; and behave in a manner towards each other that does not reflect badly on the student body or the University.
* If you, or someone you know, has experienced harassment, please talk to your lecturers, directors of study, or head of department.

Dishonest Practice
* Plagiarism, collusion, copying, and ghost writing are unacceptable and dishonest practices.
* Plagiarism is the presentation of any material (test, data, figures or drawings, on any medium including computer files) from any other source without clear and adequate acknowledgment of the source.
* Collusion is the presentation of work performed in conjunction with another person or persons, but submitted as if it has been completed only by the named author(s).
* Copying is the use of material (in any medium, including computer files) produced by another person(s) with or without their knowledge and approval.
* Ghost writing is the use of another person(s) (with or without payment) to prepare all or part of an item submitted for assessment.

Do not engage in dishonest practices. The Department reserves the right to refer dishonest practices to the University Proctor and where appropriate to not mark the work.
The University regulations on academic integrity and dishonest practice can be found here.

## Indicative Fees

Domestic fee \$1,030.00

International fee \$5,750.00

* All fees are inclusive of NZ GST or any equivalent overseas tax, and do not include any programme level discount or additional course-related expenses.

For further information see Mechanical Engineering .

## All ENME315 Occurrences

• ENME315-23S2 (C) Semester Two 2023