SubjectsSubjects(version: 855)
Course, academic year 2019/2020
  
Technological Calculations in Energetics - N218009
Title: Technologické výpočty v energetice
Guaranteed by: Department of Power Engineering (218)
Actual: from 2019
Semester: winter
Points: winter s.:5
E-Credits: winter s.:5
Examination process: winter s.:
Hours per week, examination: winter s.:2/2 C+Ex [hours/week]
Capacity: 22 / 22 (unknown)
Min. number of students: unlimited
Language: Czech
Teaching methods: full-time
Level:  
For type:  
Note: course can be enrolled in outside the study plan
enabled for web enrollment
Guarantor: Macák Jan doc. Ing. CSc.
Mištová Eva Ing. Ph.D.
Annotation -
Last update: Mištová Eva Ing. Ph.D. (22.01.2018)
The course focuses on the processes associated with perfect and imperfect combustion of fuel (heating value, burning temperature, excess air factor, the general equation of oxygen balance, the amount and composition of flue gas and desulphurization), next section is focused on the thermodynamic processes in the power plant (work, thermal and thermodynamic efficiency, regeneration cycle), calculations associated with combined cycle and cooling cycles and heat pump cycles.
Aim of the course -
Last update: Mištová Eva Ing. Ph.D. (22.01.2018)

Students will be able to:

to calculate the amount and composition of flue gases during perfect and imperfect combustion of the fuel, the actual combustion temperature, coefficient of excess air, heat loss, steam generator balance, thermal and thermodynamic efficiency, the amount of steam produced, fuel burned and the amount of cooling water and its loss, superheated steam temperature regulation by injection of condensate, efficiency of combined cycle, values associated with cooling to a low temperature in a wet or dry refrigeration cycle.

Literature -
Last update: Mištová Eva Ing. Ph.D. (22.01.2018)

R:Mištová E.,Macák J.,Jelínek L.:Energetika-Návody k výpočtům,VŠCHT Praha,2016,978-80-7080-946-4

A:Vošta J., Matějka Z., Macák J.:Energetika,VŠCHT Praha,1999,80-7080-358-4

A:Tabulky a diagramy z oboru paliv, SNTL Praha 1956

A:Výpočty termodynamických, transportních a ostatních vlastností obyčejné vody,CZ NC PWS,Ústav termomechaniky AV ČR,Praha,2001,80-85918-63-3

Learning resources -
Last update: Mištová Eva Ing. Ph.D. (22.01.2018)

https://uen.vscht.cz/studium/8321/10465

https://uen.vscht.cz/studium/8321/8735/10467

https://uen.vscht.cz/files/uzel/10468/0001~~S81LLUpPLclMzj68UqEkMak0J7sSAA.pdf?redirected

https://uen.vscht.cz/files/uzel/10468/0002~~y9AtVkjJTEwvSswFAA.pdf?redirected

Syllabus -
Last update: Mištová Eva Ing. Ph.D. (22.01.2018)

1. Types of fuels for power production, properties thereof. Upper and lower calorific values.

2. Effective combustion. Excess of air. Flue gas analysis.

3. Incomplete combustion. Air excess coefficient. Oxygen balance.

4. Temperature of combustion. Combustion products dissociation. Combustion rate and limits.

5. Boiler efficiency estimation. Guarantee tests, standards.

6. States of water and steam. State diagrams. IAPWS formulations (IFC67, IF97).

7. Estimation of wet steam state. Methods, devices.

8. Heat cycles. Thermal efficiency. Methods of its increase.

9. Power and heat production plants. Schemes, utilized heat, losses.

10. Steam turbines, expansion in h-s diagram. Thermodynamic efficiency.

11. Power production indexes, estimation thereof.

12. Cooling cycles, balance. Balance of turbine condenser.

13. Combined cycles, thermodynamic processes, efficiency.

14. Absorption and compression cooling cycles. Heat pumps.

Registration requirements -
Last update: Mištová Eva Ing. Ph.D. (22.01.2018)

Power Engineering, Physical Chemistry I

Teaching methods
Activity Credits Hours
Účast na přednáškách 1 28
Příprava na přednášky, semináře, laboratoře, exkurzi nebo praxi 0,5 14
Příprava na zkoušku a její absolvování 2,5 70
Účast na seminářích 1 28
5 / 5 140 / 140
Coursework assessment
Form Significance
Regular attendance 10
Continuous assessment of study performance and course -credit tests 30
Oral examination 60

 
VŠCHT Praha