Course detail

Combustion and Fuels

FSI-LPSAcad. year: 2023/2024

The subject deals with the properties of fuels and the influence of these properties on the construction and operation of boilers of power equipment. Another area is the fuel management of solid and gaseous fuels, including mills and other mechanical treatment technologies, ie crushing, grinding and drying coal, construction of coal mills, operation and safety regulations of grinding stations, coal handling (landfilling and transport), biomass chipping and pelleting.
The chemistry of combustion reactions and reaction kinetics are another area that will be introduced to the students. this knowledge will be followed by the topics of burners and combustion chambers.

Language of instruction

Czech

Number of ECTS credits

5

Mode of study

Not applicable.

Guarantor

doc. Ing. Marek Baláš, Ph.D.

Department

Energy Institute (EÚ)

Entry knowledge

Knowledge of thermodynamics, basic laws of thermodynamics, heat transfer and gas and vapor flow. Knowledge of practical application of fuel combustion, boiler, furnace or small fuel consumers is recommended.

Rules for evaluation and completion of the course

For granting the credit is required attendance in exercises, submission of performed calculations, as well as submitting the project according to the assignment. The exam is written and oral.
Controlled participation in lessons: Exercises are compulsory. The student will be compensated for absence by agreement with the tutor. Lectures are optional.

Aims

To acquaint students with solid and gaseous fuels (especially coal, biomass and natural gas) and their properties. To provide theoretical and computational data for the design of fuel management, grinding equipment and stations. The second part of the course acquaints students with the principles of combustion, combustion kinetics, burners and combustion chambers.
Prerequisites and co-requisites Knowledge of physical chemistry with focus on combustion of fossil and alternative fuels, as well as in the field of fuel preparation and fuel economy in industrial applications.

Study aids

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

Atkins P.W.: Physical Chemistry. Oxford University Press
Borman G.L.,Ragland K.W.: Combustion Engineering. McGraw-Hill
Źelkowski J.: Kohleverbrennung. VGB Essen

Recommended reading

Not applicable.

Elearning

eLearning: currently opened course

Classification of course in study plans

  • Programme N-ETI-P Master's

    specialization ENI , 2 year of study, winter semester, compulsory

Type of course unit

 

Lecture

26 hod., optionally

Teacher / Lecturer

Ing. Pavel Milčák

Syllabus

1. Classification and characteristic properties of solid fuels - coal, biomass, waste.
2. Influence of fuel properties on boiler construction.
3. Coaling, coal transport, crushing, grinding circuits, use according to the type of coal.
4. Drying, drying medium, vapors,
5. Energy laws of mechanical decoupling of coal. Grindability, specific grinding work, properties of coal powder. Pipe mill: construction, operation, use
6. Medium mills, fan and hammer mills: construction, operation, use.
7. Auxiliary equipment of mills, powder containers, feeders. Inertization of the environment. Solid fuel burners.
8. Liquid fuels, properties chap. of fuels, fuel management of liquid fuels
9. Fuel gases, properties, gas interchangeability, Wobbe index.
10. Fuel management of gaseous fuels, gas burners.
11. Basic combustion process, chemical equilibrium of combustion reactions, stoichiometry, combustion kinetics.
12. Influence of fuel properties on combustion, temperature of uncooled flame
13. Combustion chambers of gas turbines

Computer-assisted exercise

26 hod., compulsory

Teacher / Lecturer

Ing. Pavel Milčák

Syllabus

. Fuel composition calculations, combustion air stoichiometric calculations,
2. Design of air fan power.
3. Stoichiometric calculations with flue gas, conversion of flue gas concentrations,
4. Uncooled flame temperature, flue gas dissociation.
5. Mill circuit at the boiler burning black coal. Heat balance, power calculation, operating states.
6. Heat balance of ring mill.
7. Heat balance of the fan mill.
8. Weight and heat balance of the dryer.
9. Gas turbine combustion chamber design.
10. Gas turbine combustion chamber design.

Elearning

eLearning: currently opened course