Single-Course English 5 ECTS

# Heat transfer

## Overall Course Objectives

Introduction to heat transfer processes and their mathematical description concerning practical use within design and measuring techniques.

Learning Objectives

• Establish heat balances for one dimensional heat conduction in Cartesian and cylindrical coodinate systems for structures and constructions with and without heat generation in the construction
• Calculate the temperature distribution in simple Cartesian and cylindrical bodies
• Calculate the thermal efficiency and temperature distribution for fins (extended surfaces)
• Calculate temperature versus time for lumped and distributed capacitance thermal models
• Discretize heat balance equations based on the explicit and implicit finite difference methods
• Calculate simple convection and boundary layers
• Calculate the heat transfer and temperature distribution for forced convection for plane surfaces and flow around pipes
• Calculate heat transfer and temperature distribution for flow inside channels
• Calculate heat exchangers with LMTD (Logarithmic Mean Temperature Difference) and epsilon-NTU (Number of Transfer Units) methods

Course Content

Conductive heat transfer in solids with and without volumetric heat generation. Conductive heat transfer in geometries described in Cartesian and cylindrical coordinate systems. Analytical solutions to the partial differential equation for steady and unsteady heat conduction in solids. Thermal resistances. Overall heat transfer coefficient. Fins and extended surfaces. Numerical solution for conduction heat transfer in solids. The finite difference method (FDM) with explicit and implicit time discretization. Convection heat transfer. Dimensionless numbers. Simple boundary layer theory. Thermal boundaries in laminar and turbulent regimes. Convection/advection in internal flows. Heat exchangers and their theory. LMTD (Logarithmic Mean Temperature Difference) and epsilon-NTU (Number of Transfer Units) methods

Recommended prerequisites

01030/01035

Teaching Method

Lessons and problem solving.

Faculty

See course in the course database.

## Registration

Language English 13 weeks DTU Lyngby Campus 41814 Bachelor Week 35 Week 48 Tues 13-17
Price 7.500,00 DKK