Course code Ener3027

Credit points 3

Total Hours in Course120

Number of hours for lectures24

Number of hours for seminars and practical classes16

Number of hours for laboratory classes8

Independent study hours72

Date of course confirmation17.12.2014

Responsible UnitInstitute of Energetics

Enerģētikas institūts
## Raimunds Šeļegovskis

Dr. sc. ing.

Fizi1009, Basic Physics

Fizi2032, Physics I

Mate1029, Mathematics I

Mate1030, Mathematics II

The aim of the study course is to acquire the basic of Thermodynamic. Students get skills to calculate the mechanical energy and heat during thermodynamic processes and cycles, heat losses and supply of energy in heat equipment. Students get understanding of thermodynamic basic of heat and cooling equipment. Students get knowledge and understanding in heat transferring ways and regularities.

Knowledge - the fundamentals of thermodynamics, the balance of heat thermotechnic equipment, the regularities of heat transfer and determination factors, the thermodynamic fundamental of heat equipment operation;

Skills - to make the calculations of heat flow of heat equipment, to make the calculations of heat transfer for different practical application, make the analyze of thermodynamic processes;

Competence - to evaluate the energy flow of the given heat equipment or object, analysis of heat flow formation and basic factors that impact it; choice of heat utilization solutions.

**Full time intramural studies:**

1. Basic concepts of thermodynamics. Thermodynamic parameters. (Lectures - 2 h)

2. Thermodynamic processes. (Lectures - 2 h, pract. works -1h)

3. Ideal gas. The equation of the state of gas. Calorific value. (Lectures 1 h, pract. works - 1h)

4. Gas mixtures. The first law of thermodynamics. (Lectures - 2 h, pract. works - 1h)

5. Thermodynamic cycles. Karno cycle . (Lectures - 1 h, pract. works - 1h)

6. The second thermodynamics law. (Lectures - 1h)

7. Real gases, their state equations. (Lectures - 1 h, pract. works - 1h)

8. Water steam, it’s parameters. (Lectures - 2 h, pract. works - 1h)

9. Vapour-gas mixtures. Wet air, it’s parameters. Transition of heat and mass. (Lectures - 1 h, pract. works - 1h)

10. Thermodynamics of equipment. Cycles of internal combustion engines. (Lectures - 1 h)

11. Thermodynamic cycles of steam equipment. (Lectures - 2 h)

12. Thermodynamic cycles of refrigerating appliances. Heat pump thermodynamic cycle. (Lectures - 2 h)

13. Types of heat exchange, basic concepts, heat transition. Stationary and non-stationary processes. (Lectures - 1 h)

14. Heat conduction. (Lectures - 2 h, pract. works – 2 h)

15. Heat convection. (Lectures - 2 h, pract. works – 2 h)

16. Radiance of heat. (Lectures - 2 h, pract. works – 2 h)

Test 1: Calculations of thermodynamic parameters (Practical works 1h).

Test 2: Heat transfer calculations. (Practical works 1h).

Test 3: Theoretical bases of heat sciences - theory (Practical works 1h).

Laboratory works:

Heat conduction 3 h,

Heat convection. 2 h

Heat radiation. 3 h
**Part time extramural studies:**

All topics specified for full time studies are accomplished, but the number of contact hours is one half of the number specified in the calendar

Credit with mark.

All three tests must be credited, laboratory works must be worked out and defended.

Students independently prepare for tests and defense of laboratory works.

The evaluation of a credit depends on the assessment obtained in all three tests.

1. Nagla J., Saveļjevs P., Turlajs D. Siltumenerģētikas teorētiskie pamati. Rīga: RTU, 2008. 193 lpp.

2. Gengel Y.A. Heat transfer. A practical approach. Boston [etc.]: McGraw-Hill, 2004. 908 p.

1. Šeļegovskis R. Metodiskie norādījumi praktiskajiem darbiem studiju kursā „Siltumzinību pamati” LLU TF Lauksaimniecības enerģētikas specialitātei. Rīga: RTU, 2007. 26 lpp. e-grāmata. Pieejams: www.tf.llu.lv/Mācību materiāli/R.Šeļegovska mācību materiāli.

The course is included in the compulsory part of the professional higher education bachelor study program "Applied Energy Engineering".