2018-2019 / MECA0522-1

Heat exchangers, constructive and fundamental aspects

Duration

15h Th, 15h Pr, 16h Proj.

Number of credits

 Master in electro-mechanical engineering (120 ECTS)3 crédits 

Lecturer

Philippe Ngendakumana

Language(s) of instruction

French language

Organisation and examination

Teaching in the first semester, review in January

Schedule

Schedule online

Units courses prerequisite and corequisite

Prerequisite or corequisite units are presented within each program

Learning unit contents

Performance of heat exchangers in steady-state and transient regimes. Heat exchangers logarithmic mean temperature difference (LMTD), effectiveness and number of heat transfer units. Types of heat exchangers studied: double-pipe, tube-fin, plate-fin, shell and tubes, plates, fixed and rotating regenerators, serpentine and tank, heat pipes, radiant heat exchangers, heat recovery steam generator (HRSG), cooling towers, tanks for ice stocking and destocking. Design criteria : heat duty, pressure drop, size, manufacturing facility, fouling and cleaning, fluids types (corrosion, toxicity, temperature, pressure and possible leakages).
 

Learning outcomes of the learning unit

The course is aimed at giving to the students the fundamental notions needed for solving the rating and sizing (design) problems (overall heat transfer coefficient as well as the pressure drops in the two streams) of different types of heat exchangers.

Prerequisite knowledge and skills

Course MECA0002-1 "Thermodynamique appliquée et introduction aux machines thermiques" Course MECA0445-2 "Heat transfer"

Planned learning activities and teaching methods

Practical exercises are solved and mandatory homeworks are proposed. A visit of an industrial plant is organised.

Mode of delivery (face-to-face ; distance-learning)

The course consists in oral presentations illustrated by practical cases. It is given during the first semester.
A copy of the slides is sent by e-mail to the students the day before each lecture.

Recommended or required readings

The course contents is extracted from : 
- Kays W. M. and London A. L. Compact Heat Exchangers, 3rd Edition, MacGraw-Hill 1984. - Hewitt G. F., ShireS G. L. and Bott T. R.. Process Heat Transfer, CRC Press Inc. and Begel house, USA 1994. - Bontemps A. et al. Technologie des échangeurs thermiques. Techniques de l'Ingénieur. Paris, 1998. - KAKAC S. and LIU H. Heat exchangers : Selection, rating and thermal design. 2nd edition, CRC Press Inc, USA 2002. - Shah R. K. and Sekulic D. P. Fundamentals of heat exchanger design. John Wiley & Sons, New Jersey 2003. - Webb R.L. and Kim N.-H., Principles of Enhanced Heat Transfer. 2nd Edition, Taylor&Francis, New York 2005. - Nellis G. and Klein S. Heat transfer. Cambridge University Press, 2008. - VDI Heat Atlas. Second Edition, Springer 2010 - Thome, J.R., Engineering Data Book III. Wolverine Tube, Inc., Decatur, US. Copyright 2004-2010.
 

Assessment methods and criteria

At the end of the course, a personnal work has to be performed on a problem of design of a heat exchanger. That work counts for 60 % of the global mark and the reports of the homeworks for 40 %.

Work placement(s)

Organizational remarks

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Contacts

Philippe NGENDAKUMANA THERMOTECHNICS Building B49 Phone : +32(0)3664803 E-mail : pngendakumana@ulg.ac.be