Content
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introduction to the refrigerant circuit
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properties of the refrigerant R744 compared to R134a or R1234yf
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transcritical refrigerant circuit
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optimal high pressure regulation
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system analysis with the p, h-diagram
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safety issues
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components: expansion device, compressor, evaporator, gas cooler, accumulator, internal heat exchanger
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measurements on a R744 refrigerant circuit
Objective target
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introduction to basics of the refrigerant circuit with R744
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understanding of the functionality and the operating performance of transcritical R744 systems
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comparison with conventional refrigerant circuits
Target group
The course is addressed to master craftsmen, technicians and engineers, e. g. with the justification on engine construction or process engineering, who will be employed as professionals and entrants respectively in automotive air-conditioning. The course is also focused to employees in the range of construction, quality assurance, application and examination procedures. In the context of this course, the compression refrigeration system is concerned practice oriented in the special application of the automotive refrigeration system.
Requirements
Knowledge of the refrigeration technology is required (see PFBA).