Combustion Presentation Lecturers - José Miguel C Mendes Lopes (theoretical and problem solving) - [email protected] - Ext: 1375 - Room: 1st floor, Pavilhão de Mecânica I

- Dep. Mechanical Eng.

- José Chaves Pereira (laboratorial) - [email protected] - Ext: 1928 - Room: 1st floor, Pavilhão de Mecânica I

- Dep. Mechanical Eng.

- Scientific Area: Thermofluids and Technologies of Energy Conversion

- Scientific Area: Thermofluids and Technologies of Energy Conversion

Course - Combustion - MEMec - 5th academic year - Mandatory for the Energy Profile MEMec, optional for the other profiles of MEMec and other courses at IST - Fénix web page

Combustion Presentation Aims - Generic aim of all courses: to prepare the students to become Engineers - General aims: To integrate in a specific subject the knowledge acquired in previous courses (thermodynamics, chemistry, fluid mechanics, heat transfer and mass, etc.). To prepare students to understand and analyze the multiple processes and equipment directly or indirectly linked to combustion, both in intentional or unwanted combustion. To understand the role of combustion under the points of view of energy and environment. To acquire the language typical of Combustion and the knowledge to keep updated in future years. - Specific aims: To convey the basic concepts of chemical kinetics relevant in combustion. To apply mass and energy balances to combustion problems. To describe the main fuels and their properties. To describe the principles of ignition, flame stabilization and extinction, and the structure of premixed and diffusion flames in laminar and turbulent regimes. To present simple models to describe the combustion of liquids and solids. To identify the main pollutants, their formation mechanisms, and the methods of reducing emissions. At the beginning of each chapter the general and specific aims for that chapter will be presented These aims are available on the website of discipline

Combustion Presentation

Programme I Introduction Fields of application. Fuels. Major pollutants and their effects. Transport phenomena. Transport equations. II Chemical kinetics Importance of time scales. Rate of reaction. Elementary reactions. Reaction mechanisms. III Premixed flames Laminar and turbulent premixed flames. Burning speed. Flammability limits. Quenching. Flame stabilization. Ignition. IV Difusion flames Jet flames. Vaporization of liquids. Sprays. Vaporization and combustion of droplets and sprays. Combustion of coke. V Unwanted combustion Fire phenomena. Detection and fire extinguishing systems. VI Well stirred reactor and flame stabilization in recirculation zones Well stirred reactor and flame stabilization using bluff bodies. VII Fuels Solid, liquid and gaseous fuels. Comparisons of fuels. VIII Combustion equipment Main components. IX Environmental Combustion Considerations Major pollutants and their effects, their formation and control. Legislation.

Combustion Presentation

Lectures and Field visits - Theoretical lectures (concepts, analysis, synthesis, discussion, …) - Problem solving lect. (applications, consolidation, awareness, discussion, …) - Laboratorial lectures - Laboratorial test (consolidation, awareness, discussion, …) - Field visit

(consolidation, awareness, discussion, …)

- Departamento de Limitação de Avarias (Base Naval do Alfeite) 23rd April (afternoon)

Combustion Presentation Where ? GA3 -Pavilhão Central (ground f.) QA02.3 - Torre Norte (floor -2) C22 -Pavilhão Central. (2nd floor) P8 - Pavilhão Matem. (2nd floor) Q4.1 - Torre Norte (4th floor) Lab - Pav. Mecânica I (basement) Dúvidas – gabinete do docente - Pav. Mecânica I (1st floor) JML JCP

Office hours to clarify doubts - Tuesday

16h00-17h30

- Wednesday 11h00-12h00 - Thursday

16h00-18h00

Combustion Presentation

Bibliography Coelho P & Costa M

Combustão

Ed. Orion (2012)

Glassman I

Combustion

Academic Press, 3rd ed. (1996)

Francis W & Peters M C

Fuels and Fuel Technology

Pergamon Press, 2nd ed. (1980)

Turns S R

An Introduction to Combustion – Concepts and Applications

McGraw-Hill, 2nd ed. (2000)

Spalding D B

Combustion and Mass Transfer

Pergamon Press, (1979)

Kuo K K

Principles of Combustion

John Wiley & Sons (1996)

Keating E L

Applied Combustion

Marcel Dekker (1993)

Heitor M V

Técnicas Instrumentais para a Análise de Escoamentos com Combustão

Apontamentos IST

Combustion Presentation

Assessment

(see the course’s web page)

- Written Exam (overall mark ≥ 9.5) - Oral exam if the lecturer decides so - Oral exam for final mark in the course above 16 - Closed book (1st part) and open book exam (2nd part) - Alpha-numeric calculators are not allowed in the closed book part of the exam - Mandatory Laboratorial Test (groups of 5 students) - Test preceded by an oral exam (1/3 of the rating of the laboratorial work) - Test report to be delivered within 5.0 working days (2/3 of the rating) - Test and report of 2011/12 are accepted (but not older tests and reports) - Ongoing Assessment (in every theoretical lecture) – not mandatory - It may add 0.5 ou 1.0 points to the mark of the Written Exam - Final Mark = ¾ Exam + ¼ Laboratorial Work - It is possible to do an Optional Work (subjected to an oral exam) - The Final Mark is then given in that oral taking into account the Optional Work as well as the Written Exam and the Laboratorial Work

Combustion Presentation It is mandatory to give a “verbete” to the lecturer It is in digital format. The template is in the web page of the course and will be sent to you by email (as a PowerPoint file – ppt)

Fill it in according to the instructions and send it to my email

Combustion Presentation

Advices -

DO STUDY REGULARLY (every week)

-

START NOW (today !)

-

DO STUDY WITH CRITICAL MINDSET (read between the lines, seek to keep relating new with the old subjects, try to anticipate what will be presented next, question what they are learning, ...)

Combustion Presentation

Advices (text of a student of mine who went abroad - received in mid-September 2007, two weeks after her departure) “ ... As for the new world .... well ..... it's completely different. A redoubled effort (triplicate, quadruplicate, I dunno ... maybe factorial) is required. Here it is really hard work. This past week I had already to deliver some reports (it's amazing with just one week of classes, but that’s the way it is). ... Well, I don’t know how to say it .... but I have no idea what to do with my thesis. I thought here was as at IST, kind of “first month nothing happens”, and that I would have time to write. Bloody hell ! ! My plan went down the drain. ... “