Course syllabus

Värmeöverföring
Heat Transfer

MMVF05, 7,5 credits, G2 (First Cycle)

Valid for: 2021/22
Faculty: Faculty of Engineering, LTH
Decided by: PLED M
Date of Decision: 2021-04-13

General Information

Main field: Technology.
Elective Compulsory for: M3
Elective for: F4, F4-bem, MLIV1
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.

The significance of Heat Transfer

Heat transfer (i.e., the transfer of heat) is an evergreen and important phenomenon of large relevance both in nature and in existing and future renewable energy systems towards a sustainable society. It is an essential and important part in many industrial applications, such as in process and chemical industries, in various power cycles for electricity generation, heating, refrigeration and air conditioning, and in vehicle, aerospace, information and communication industries for thermal management of batteries and power electronics. Issues of global warming and greenhouse gas emissions, together with other pollution and effluents, are increasingly one of the major technological and also important societal and political challenges. A very important contribution to successfully deal with those problems can be offered by heat transfer engineering.

Studying heat transfer will help us to gain an in-depth understanding of various heat transfer mechanisms and devices, which will enable us to engineer and develop heat transfer devices in order to enhance heat transfer performance, to improve energy conversion efficiency, to increase cooling capacity and to promote use of renewable energy. In a wide context, an in-depth knowledge in heat transfer is of big relevance to address several United Nations Sustainable Development Goals (SDGs), such as SDG7: affordable and clean energy; SDG9: industry, innovation and infrastructure; and SDG12: responsible consumption and production.

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 - (U,3,4,5) - (Fail, Three, Four, Five)
Assessment: A written exam including theoretical questions and problems to be solved has to be passed. 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. The home work or assignments concern solving of a few problems from the collection of heat transfer problems and a few theoretical tasks. Every student must hand in an own solution to every assignment. The teachers will correct and approve the tasks.

The examiner, in consultation with Disability Support Services, may deviate from the regular form of examination in order to provide a permanently disabled student with a form of examination equivalent to that of a student without a disability.

Parts
Code: 0117. Name: Heat Transfer.
Credits: 5,5. Grading scale: TH. Assessment: Exam
Code: 0217. Name: Heat Transfer - Home Assignments.
Credits: 2. Grading scale: UG. Assessment: Home assignments

Admission

Admission requirements:

The number of participants is limited to: No

Reading list

Contact and other information

Course coordinator: Martin Andersson, martin.andersson@energy.lth.se
Teacher: Zan Wu, zan.wu@energy.lth.se
Examinator: Martin Andersson, martin.andersson@energy.lth.se
Course homepage: https://www.energy.lth.se/english/education/
Further information: The course includes lectures, tutorial sessions, self studies, home work assignments. Some chapters are for self studies with compulsory assignments.