| Subject name (in Hungarian, in English) | Combustion | |||
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Combustion
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| Neptun code | BMEGEENNWCO | |||
| Type | study unit with contact hours | |||
| Course types and number of hours (weekly / semester) | course type: | lecture (theory) | exercise | laboratory excercise |
| number of hours (weekly): | 2 | 2 | 0 | |
| nature (connected / stand-alone): | - | coupled | - | |
| Type of assessments (quality evaluation) | mid-term grade | |||
| ECTS | 5 | |||
| Subject coordinator | name: | Dr. Józsa Viktor | ||
| post: | associate professor | |||
| contact: | jozsa@energia.bme.hu | |||
| Host organization | Department of Energy Engineering | |||
| http://www.energia.bme.hu/ | ||||
| Course homepage | ftp://ftp.energia.bme.hu/pub/Combustion | |||
| Course language | english | |||
| Primary curriculum type | mandatory | |||
| Direct prerequisites | Strong prerequisite | none | ||
| Weak prerequisite | ||||
| Parallel prerequisite | ||||
| Milestone prerequisite | at least obtained 0 ECTS | |||
| Excluding condition | BMEGEENMWCT | |||
Aim
Combustion is in a special situation today. From a societal point of view, although there are many attacks on combustion facilities and engines, the complete replacement of combustion technologies will not occur, but rather its transformation will take place in the upcoming decades. In addition to fossil fuels, there will be a significant increase in the use of renewable fuels, whose combustion-important properties are highly dispersed. Therefore, it is crucial to understand the theoretical processes that determine the characteristics of combustion. Only with the help of these can one design environmentally friendly systems and engines. Topics covered: fluid mechanical aspects of combustion, physical and chemical properties of fuels, combustion chemistry, atomization, evaporation, emissions, soot and ash formation, acoustic effects, flammability limits, flame stability, flue gas aftertreatment.
Learning outcomes
Competences that can be acquired by completing the course
Knowledge
Knows the gross processes and balance equations of combustion. Understands the concepts and operation of modern combustion systems. Knows the main reaction pathways for the oxidation of hydrocarbons. Knows the reaction pathways and physical conditions for the formation of pollutants. Knowledgeable about the main technological processes used to atomize liquid fuels. Combines the flow and chemical conditions required for stable combustion. Aware of the effects of pollutants on the environment. Knows the main renewable fuel types. Knows numerical combustion modeling. Reviews the combustion systems and only then starts solving the problem.
Ability
Able to determine the gross reaction equation of any fuel. Able to calculate the gross stoichiometric characteristics of combustion. Use balance equations to easily model the combustion process. Based on the knowledge of the fuel, it calculates the theoretical maximum temperature of combustion. Can design the fuel system for any fuel state. From the emission characteristics of the pollutant, relates to the characteristics of the combustion, and the source of pollutant formation. For liquid fuels, analyzes the evaporation process in a conservative way. Based on the combustion conditions, determines the initial conditions for numerical simulation. Based on the characteristics of combustion, analyzes the thermal load of the combustion chamber. In the case of existing constructions, selects the most suitable burner for combustion.
Attitude
Constantly monitors the own work, results, and conclusions. Develops the ability to provide accurate and error-free problem solving, engineering precision, and accuracy. Open to the use of information technology tools. Open to new technological methods and procedures. Supports the widest possible spreading of environmentally friendly technologies.
Independence and responsibility
Collaborates with the instructor and fellow students to expand knowledge. Accepts well-founded professional and other critical remarks. In some situations, as part of a team, works with fellow students to solve tasks. With the acquired knowledge, makes a responsible, informed decision based on the gathered data. Committed to the principles and methods of systematic thinking and problem-solving.
Teaching methodology
The two-hour lecture per week is the core of the subject, which facilitates knowledge deepening supported by numerical examples, computer room exercises, and measurements. Due to the nature of the examination, the subject expects active participation and presence from the students during the semester. Active participation is especially important, as combustion technology is an interdisciplinary field. Lectures will take place principally on a whiteboard, supported by illustrative digital materials where possible and necessary. The audience should make a note of the materials spoken and on the board. The exercises include practical problem solving, computer, numerical combustion simulations, and measurements to better understand the physical behavior of various fuel types. During the laboratory sessions, the audience is divided into groups of up to 6 students for a better participation experience. Thus, several laboratory measurements take place in parallel during a practical session.
Support materials
Textbook
Richard J. Reed: North American Combustion Handbook: A Basic Reference on the Art and Science of Industrial Heating with Gaseous and Liquid Fuels, Vol. 1, Third Edition, North Amer Manufacturing Co., 2010. ISBN: 978-0960159628
Richard J. Reed: North American Combustion Handbook: A Basic Reference on the Art and Science of Industrial Heating with Gaseous and Liquid Fuels, Vol. 2, Third Edition, North Amer Manufacturing Co., 1997. ISBN: 978-0960159635
Tim C. Lieuwen: Unsteady Combustor Physics, Cambridge University Press, 2012, ISBN: 9781139059961
Lecture notes
It is anticipated that by 2020, there will be no lecture note on the subject in the same language as the language of instruction.
Online material
ftp://ftp.energia.bme.hu/pub/Combustion
Validity of the course description
| Start of validity: | 2019. September 1. |
| End of validity: | 2025. July 15. |
General rules
There will be two midterm exams, summarizing academic performance evaluation: a complex, written way of evaluating the competence-type competence elements of the subject and knowledge in the form of a midterm exam, which focuses on the application of the acquired knowledge, so it focuses on problem recognition and solution, on the other hand, asks for the necessary lexical knowledge during the performance appraisal, the working time available is 90 minutes. Partial performance assessment (homework): a complex way of evaluating the knowledge, ability, attitude, and responsibility type competence elements of the subject.
Assessment methods
Detailed description of mid-term assessments
| Mid-term assessment No. 1 | ||
| Type: | summative assessment | |
| Number: | 2 | |
| Purpose, description: | Summative assessments collectively examine and assess students’ learning outcomes defined by knowledge and ability type competencies. Accordingly, each summative assessment assesses the acquisition of the designated theoretical knowledge as well as the existence of the knowledge and skills acquired in practice. Each summative assessment focuses 65% on theoretical knowledge and 35% on application skills. They will be completed on the date specified in the academic performance assessment plan, scheduled for the 8th and 14th weeks of education. Each of the two summary performance evaluations worth 50-50 points. | |
| Mid-term assessment No. 2 | ||
| Type: | formative assessment, project-based, complex | |
| Number: | 1 | |
| Purpose, description: | The aim of the partial performance assessment is to examine attitudes and learning outcomes belonging to the autonomy and responsibility competence group. The way to do this is to write an essay (article) or numerate that can only be done in groups and then present it in front of the practice group. The topic of the tasks can be selected from a predefined list, but it is also possible to select individual topics by prior arrangement. The topics are chosen and the assignments of the groups of at least three and at most five who make them up must be finalized by the fifth week of education. The content and form requirements and evaluation principles of the prepared document are included in the terms of reference. You can get up to 20 points with this task. This task is optional, so its completion is not obligatory, the evaluation obtained here is added to the semester performance as an extra point. | |
Detailed description of assessments performed during the examination period
The subject does not include assessment during the examination period.
The weight of mid-term assessments in signing or in final grading
| ID | Proportion |
|---|---|
| Mid-term assessment No. 1 | 100 % |
| Mid-term assessment No. 2 | 20 % |
The weight of partial exams in grade
There is no exam belongs to the subject.
Determination of the grade
| Grade | ECTS | The grade expressed in percents |
|---|---|---|
| very good (5) | Excellent [A] | above 90 % |
| very good (5) | Very Good [B] | 85 % - 90 % |
| good (4) | Good [C] | 72 % - 85 % |
| satisfactory (3) | Satisfactory [D] | 65 % - 72 % |
| sufficient (2) | Pass [E] | 50 % - 65 % |
| insufficient (1) | Fail [F] | below 50 % |
The lower limit specified for each grade already belongs to that grade.
Attendance and participation requirements
Must be present at at least 70% (rounded down) of lectures.
At least 70% the exercises (rounded down) must be actively attended.
Special rules for improving, retaken and replacement
The special rules for improving, retaken and replacement shall be interpreted and applied in conjunction with the general rules of the CoS (TVSZ).
| Need mid-term assessment to invidually complete? | ||
| NO | ||
| Can the submitted and accepted partial performance assessments be resubmitted until the end of the replacement period in order to achieve better results? | ||
| NO | ||
| The way of retaking or improving a summary assessment for the first time: | ||
| the summative assessments can be retaken or improved only combined | ||
| Is the retaking-improving of a summary assessment allowed, and if so, than which form: | ||
| one single, combined retake or grade-improving exam is possible for all assesments | ||
| Taking into account the previous result in case of improvement, retaken-improvement: | ||
| out of multiple results, the best one is to be taken into account | ||
| The way of retaking or improving a partial assessment for the first time: | ||
| partial assesment(s) in this group can be improved or repeated once up to the end of the repeat period | ||
Study work required to complete the course
| Activity | hours / semester |
|---|---|
| participation in contact classes | 56 |
| mid-term preparation for practices | 14 |
| preparation for summary assessments | 32 |
| elaboration of a partial assessment task | 30 |
| additional time required to complete the subject | 20 |
| altogether | 152 |
Validity of subject requirements
| Start of validity: | 2019. September 1. |
| End of validity: | 2025. July 15. |
Primary course
The primary (main) course of the subject in which it is advertised and to which the competencies are related:
Mechanical modelling
Link to the purpose and (special) compensations of the Regulation KKK
This course aims to improve the following competencies defined in the Regulation KKK:
Knowledge
- Student has the theoretical and practical knowledge and methodological skills to design, manufacture, model, operate and manage complex engineering systems and processes
- Student has the knowledge of a wide range of problem-solving techniques for research or scientific work.
- Student has the knowledge of modelling and analysis of time-varying processes in machines and mechanical systems.
Ability
- Student has the ability to understand and solve problems to be solved and to generate original ideas.
- Student has the ability to plan and carry out tasks independently and to a high professional standard.
- Student has the ability to define, solve and manage complex research and development tasks based on a systems approach and process-oriented thinking.
Attitude
- Student strives to carry out their work in a complex approach based on a systems and process-oriented thinking.
- Student is open and receptive to new, modern and innovative processes and methods in engineering modelling.
- In the course of student's work, Student will explore the possibility of setting research, development and innovation objectives and strive to achieve them.
Independence and responsibility
- Student's decisions are taken independently and in a prudent manner, in consultation with other disciplines (in particular law, economics, energy and environment), for which Student takes responsibility.
- Student has the ability to take responsibility for managing the professional work of a small or large group.
- Student has a responsibility for sustainability, health and safety culture and environmental awareness.
Prerequisites for completing the course
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Knowledge type competencies
(a set of prior knowledge, the existence of which is not obligatory, but greatly facilitates the successful completion of the subject) |
none |
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Ability type competencies
(a set of prior abilities and skills, the existence of which is not obligatory, but greatly contributes to the successful completion of the subject) |
none |