The aim of the course is to acquire knowledge about the basics of cooling systems for the passenger compartment of vehicles, cooling electric vehicle batteries and cooling goods in transport from the field/farm to the table. Students will acquire knowledge for system selection, basic operating parameters and cooling system sizing with regard to specific user needs and product requirements. Also, they will become familiar with the economic and environmental aspects of increasing the sustainability of transport.

Student responsibilities:

Class attendance and active participation, colloquiums, seminar, preparation of seminar.

Grading and evaluation of student work over the course of instruction and at a final exam:

Class attendance (25%), colloquiums (40%), evaluation of seminar (35%).

Upon successful completion of the course, students will be able to (learning outcomes):

1 . Recognize main components of cooling system

2 . Determine main parameters of cooling cycle

3 . Identify type of the system for cooling

4 . Describe the influence of temperature on the range and power of electrical vehicle

5 . Explain differences among different cooling systems for commodity transport

6 . Calculate economical and ecological aspects of increasing transport sustainability

7 . Conduct component sizing of cooling systems used in transport.

Lectures

1. Energy consumption and regulatory initiatives in the transport sector regarding EU climate plans through 2050.

2. Technical refrigeration: basics of cooling cycles, refrigeration technologies

3. Cooling systems in internal combustion engine vehicles, components

4. Components of direct and indirect cooling systems of cabin space of the vehicle

5. Refrigerants in mobile refrigeration systems

6. Heating and cooling systems in electrical and hybrid vehicles

7. Cooling of the battery pack with electro-conductive fluids employing an indirect touch of fluid and battery walls and with electro-noncunduction fluid in direct touch

8. Two-phase cooling of the battery pack by evaporating fluid in direct touch

9. Influence of thermal management on the range, durability, and power of an electric vehicle

10. Transport conditions and technical requirements of storing goods, maintaining the temperature of cooled cargo, cold chain

11. Refrigerated containers as part of intermodal cold transportation

12. Refrigeration systems in sea, land, and air transport

13. Increasing sustainability of refrigeration transport: accumulation of energy, utilization of waste heat, integration of renewable energy sources

14. Selection of refrigeration system components

15. Study visit

Exercises

1. Introduction

2. Energy analysis of transport sector, cooling cycle and coefficient of performance

3. Calculation of basic cooling cycle I

4. Calculation of advanced cooling cycle I (internal heat exchanger)

5. Calculation of advanced cooling cycle II (multi stage compression)

6. TEWI calculation for different refrigerants

7. Heat transfer calculation in battery cooling process I

8. Heat transfer calculation in battery cooling process II

9. Laboratory work - influence of heat sink/source temperature on the heat pump efficiency

10. Comparison of direct and indirect cooling system

11. Thermal load of refrigerated containers

12. Thermal loads in cabin space

13. Design of absorption heat pump

14. Basic heat exchanger sizing

15. Study visit

Compulsory literature:

1. Refrigeration & Air Conditioning Technology, B. Whitman, B. Johnson, J. Tomczyk, E. Silberstein,, Delmar cengage Learning, 2013, p. 1-1659

2. Refrigeration systems and applications, I. Dincer, M. Kanoglu,, Wiley, 2021, p. 1-464

Recommended literature:

3. Modern Refrigeration and Air Conditioning, A.D. Althouse, C.H. Turnquise, A.F. Bracciano, D.C. Bracciano, G.M. Bracciano, Goodheart-Willcox Company, 2021, p. 1-1211