A/C Testbed / 70 SIMULATION SOLUTIONS TEST SYSTEM SOLUTIONS Electrification Battery Test Systems E-Motor Test Systems Power Electronics Test Systems Component Test Systems MBD on the virtual testbed Engine Test Systems End of Line Test Systems Real Life Test Systems Driveline Test Systems Fuel and Lube Test Systems Emission Test Systems and Certification Vehicle Test Systems Racing Test Systems E-Power Measurement System Battery Test Systems E-Motor Test Systems Power Electronics Test Systems Flow Test Benches Thermal Test Systems MBD on the Virtual Testbed Engine Test Systems End of Line Test Systems Real Life Test Systems Driveline Test Systems Fuel and Lube Test Systems Emission Test Systems and Certification Vehicle Test Systems Racing Test Systems TESTING EQUIPMENT SIMULATION TOOLS TESTING TOOLS CUSTOMER SERVICES The development of the qpunkt A/C testbed is based on our long-standing experience and deep understanding of the subject air conditioning. Its purpose is to provide new insights into complete A/C systems. The modular design of the testbed allows for custom setups to fit the individual needs of each customer, and supports the efficient development of refrigerant cycles and entire A/C systems of motorcars, commercial vehicles as well as motor trucks. APPLICATION The A/C testbed has a wide range of applications. Applications range from the development of new A/C systems using R134a, 1234yf, R744 (CO2) and alternative refrigerants, to performance evaluation studies of air conditioning units in connection with the refrigerant cycle, and even to the analysis of potential flaws and faults in the system. The testbed facilitates the development of one or two stage evaporator systems with the aim of: increasing overall system efficiency; tuning expansion valve performance to cycle behaviour; and analysing oil displacement and oil transportation, etc. Refrigerant-air heat exchangers are supplied with conditioned air (temperature, volume flow, humidity), so allowing for the simulation of stationary loads as well as full driving cycles. Using this methodology it is also possible to develop entire refrigerant cycles of hybrid vehicles with integrated battery cooling. Using the testbed as a closed climatic chamber, the refrigerant cycle can be exposed to a wide range of loads and operating conditions. If required, it is possible to generate a controlled outdoor climate with a temperature range between -25 °C and 60 °C, including control of the humidity in the test environment. It is also possible to simulate any desired weather condition, such as a rapid transition (quick cooldowns and quick heat-ups). Another area of application for the A/C testbed is its use as a climatic chamber for measuring different test set-ups and vehicles.
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