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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.
Topics Covered 1.Energy Balance on a Surface2.Heat Conduction Modelling in 1-D3.Steady State Heat Conduction, Circuit Model4.Extended Surfaces5.Numerical Solutions of Conduction Equations with EES (Lab)6.Transient Heat Conduction7.Convection Heat Transfer Fundamentals8.External Forced Convection9.Internal Forced Convection10. Heat and Mass Transfer Analogy11.Natural Convection12.Boiling and Condensation13.Heat Exchangers14.Radiation Heat Transfer Fundamentals15.Radiation Heat Transfer EngineeringContribution to Professional CompetenciesHeat transfer is an essential engineering science. Deep learning is much more important than memorizing equations. Understanding the heat transfer phenomena and the thermal system modelling approach is more important than finding the right equation. Heat transfer is necessary for process and product design, but this class focuses much more on the engineering science you need to bring effective thermal design into any project.
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 Analogy3. 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 Number7. 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.
ENME215 or ENME204
ENME305
Susan Krumdieck
Cengel, Yunus A. , Ghajar, Afshin J., Kanoglu, Mehmet; Heat and mass transfer :fundamentals & applications ; Fifth edition in SI units; Mcgraw Hill Education, 2015.
Chapters of the Text Covered1.Energy balance, energy transfer mechanisms and modelling approach. Properties. The systematic problem solving approach. Engineering Equation Solver (EES).2.Heat Conduction Equation & boundary conditions. 1-D solutions3.Steady heat conduction using the circuit analogy. Fins. 2-D approximations. R-Values4.Transient heat transfer analytical solutions and graphical solutions using the Heisler charts. Biot and Fourier Numbers.5.Skip6.Convection. Reynolds Number. Nusselt Number. Mechanisms and phenomena. Viscous and Thermal boundary layers. Prandtl Number. (Skip analytical solutions 6.7, 6.8)7.External Forced Convection – Empirical Correlations. Momentum, Heat and Mass Transfer Analogy (Chapter 14) Heat and Mass Transfer and evaporation rate (Chapter 14). 8.Internal Forced Convection – Pipes and ducts9.Natural Convection. Grashoff Number10.Boiling and Condensation. Critical boiling, steady boiling, onset of condensation11.Heat Exchangers. Effectiveness, NTU methods for right-sizing 12.Radiation phenomena, properties13.Radiation Heat Transfer Engineering. View factor, Exchange between surfaces, heat shields
Domestic fee $956.00
International fee $5,250.00
* 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 .