ENME315-18S2 (C) Semester Two 2018

# Heat Transfer

15 points

Details:
 Start Date: Monday, 16 July 2018 End Date: Sunday, 18 November 2018
Withdrawal Dates
Last Day to withdraw from this course:
• Without financial penalty (full fee refund): Friday, 27 July 2018
• Without academic penalty (including no fee refund): Friday, 12 October 2018

## 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 using EES to solve simultaneous sets of equations and carry out parametric investigations.
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.

This course will provide students with an opportunity to develop the Graduate Attributes specified below:

 Critically competent in a core academic discipline of their award Students know and can critically evaluate and, where applicable, apply this knowledge to topics/issues within their majoring subject.

## Prerequisites

ENME215 or ENME204

ENME305

## Assessment

Assessment Due Date Percentage
Final Exam 45%
Homework and Labs 10%
Test 23 Aug 2018 25%
Quiz 1 27 Sep 2018 10%
Quiz 2 19 Oct 2018 10%

## Textbooks / Resources

#### Required Texts

Cengel, Yunus A. , Ghajar, Afshin J., Kanoglu, Mehmet; Heat and mass transfer :fundamentals & applications ; Fifth edition in SI units; Mcgraw Hill Education, 2015.

## Indicative Fees

Domestic fee \$937.00

International fee \$5,125.00

* 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

• ENME315-18S2 (C) Semester Two 2018