Course syllabus

Värmeöverföring
Heat Transfer

MMV031, 7,5 credits, G2 (First Cycle)

Valid for: 2016/17
Decided by: Education Board E
Date of Decision: 2016-04-04

General Information

Main field: Technology.
Elective Compulsory for: M3
Elective for: F4, F4-bem, MLIV1, Pi4-bem
Language of instruction: The course will be given in English

Aim

The course aims to provide the students knowledge and understanding concerning the mechanisms of heat transfer and the methods, analytical and empirical, which are used in the heat transfer subject to determine the amount of heat being transferred and the temperature field. The students should reach ability to apply the theory on engineering problems.

Learning outcomes

Knowledge and understanding
For a passing grade the student must

be able to

 

Competences and skills
For a passing grade the student must

be able to

 

Judgement and approach
For a passing grade the student must

Contents

The course covers heat conduction, convection, thermal radiation, condensation, evaporation and heat exchangers.

For heat conduction the general theory, extended surfaces and transient heating and cooling processes are included.

For the convective heat transfer the basic equations, similarity laws, forced and natural convection are included. Laminar as well as turbulent cases are studied in internal (ducts) and external (tubes, immersed bodies) flows.

Thermal radiation covers general theory, black and non-black bodies, grey bodies, view factors, radiative exchange between non-black surfaces as well as gas radiation.

The chapter on condensation presents the basic theory on film condensation and influence of essential parameters and the geometry. Introduction to dropwise condensation is provided. The chapter on evaporation concerns boiling, empirical results, two-phase flow and heat transfer, convective boiling and condensation in tubes.

The heat exchanger chapter describes various types of heat exchangers in engineering applications, presents theory and methods for sizing and rating of heat transfer equipment.

Examination details

Grading scale: TH
Assessment: A written exam including theoretical questions and problems to be solved has to be passed at the end of the study period (quarter) vt2. The exam includes 40 % theory and 60 % problem solving. The maximum number of credit points on the exam is 50 p. A problem usually has 10 p. As the theoretical questions are handled closed books prevail. For the problem solving part, the course book and supplied tables are permitted. The exam must therefore be splitted up in two parts. This requires that first the theoretical part is solved with closed books and as soon as this part is finished and handed in to the assistant, the problem solving part can start. The book is then permitted as well as the supplied tables and a pocket calculator. Solved problems are not permitted. To pass the exam with the grade 3, 40 % of the maximum number of credit points are requested. For the grade 4, 60 % is needed while for grade 5, 80 % is required. The home work or assignments concern solving of a few problems from the collection of heat transfer problems and a few theoretical tasks as well as a design task for heat exchangers. Every student must hand in an own solution to every assignment. The teachers will correct and approve the tasks. Incorrect solutions are returned for revision. If all home works or assignments have been handed in and been approved within the actual study period (quarter) 3 bonus points are provided (2 for problems, 1 for theoretical issues). The heat exchanger design task gives another 2 points if approved in time.

Admission

Admission requirements:

The number of participants is limited to: No

Reading list

Contact and other information

Teacher: Prof Bengt Sundén, Bengt.Sunden@energy.lth.se
Course coordinator: Martin Andersson, martin.andersson@energy.lth.se
Course homepage: http://www.energy.lth.se
Further information: The course includes lectures, tutorial sessions, self studies, home work assignments. Some chapters are for self studies with compulsory assignments.