RAC - Refrigeration and Air Conditioning

The course delivers state-of-the-art theory and provides hands-on practical training in refrigeration and air-conditioning techniques and their applications in industry. A particular focus of this course is on climate-friendly alternative refrigerants: Ammonia, CO2, Hydrocarbons and Water.

Participants will learn how real systems used in commercial and industrial refrigeration as well as air conditioning systems are working. The participants will be able to experiment in the university lab with different refrigeration systems, including the world most efficient and cleanest unit, based on pure water. During the course participants will get to visit a real carbon dioxide supermarket plant, an industrial ammonia installation as well as Hydrocarbon air conditioning and commercial refrigeration systems.

FAQ mit Michael Kauffeld (Deutsch)

Interview mit Michael Kauffeld zum RAC Kontaktstudium

FAQ with Michael Kauffeld (English)

Interview with Michael Kauffeld regarding the Contact Course RAC 


The following items will be covered:
• Alternative refrigerants
• Thermodynamics, Refrigeration, Working fluids, Heat transfer
• Compressors, Heat exchangers, Expansion valves
• Two stage / cascade systems
• Controls
• Simulation
• Commercial, industrial and transport refrigeration
• Air conditioning (stationary and mobile)

Target Group

The RAC training course is intended for professionals (engineers, technicians or managers) who are interested in implementing sustainable refrigeration engineering with special focus on natural refrigerants. Ideally participants have a technical background with some basics in thermodynamics and refrigeration technology.


Instructors: Acclaimed professors from the Karlsruhe University of Applied Sciences with over 60 years total experience within the refrigeration industry: Coordinator Prof. Dr.-Ing. habil. Michael Kauffeld, Prof. Dr. Michael Arnemann and Prof. Dr. Marco Braun. The three will be assisted by other engineers during the practical training parts.

Upon request

90 teaching hours, Monday to Friday: 08.00 am to 5:00 pm (with slight changes due to the technical visits)

Course Fee:
including technical visits, refreshments and lunches, excluding VAT
The maximum number of participants is 15 to ensure quality practical training in the lab.
Registration possible until 14th August, 2020

Language and Course Material:
The course will be taught in English. English handouts will be provided during the course in addition to an English refrigeration text book.


Registration Form

Further information:
Hochschule Karlsruhe - Technik und Wirtschaft, Institut für Wissenschaftliche Weiterbildung, Tel.: 0721/925-2812, Fax: 0721/925-2811 oder E-Mail: frauke.hoefler[at]hs-karlsruhe.de