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TU Braunschweig |
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| › Institute for Thermodynamics / TU Braunschweig |
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| Field of Activities |
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| Engineering services for stationary and mobile air conditioning, heat pump and refrigeration systems with a special focus on CO2 |
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| Main services |
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The Institute for Thermodynamics (IfT) offers engineering services for thermal systems with a special focus on mobile air conditioning working with the natural refrigerant CO2.
Services related to R744 technologies:
- Theoretical and experimental analysis of high-pressure CO2 systems
- Design & optimization of CO2 systems and components
- Application of CO2 in vehicle and residential heat pump applications
- Studies on the different application fields of CO2 as a refrigerant
The IfT disposes of the following facilities and systems::
- Test rig for CO2 cycles and components:
- Compressors: measurement of efficiencies and indicator diagrams
- Accumulators: measurement of efficiencies, visualization using a glass accumulator
- Expansion devices: component analysis
- Environmental test chamber for cycle analysis
- Simulation tools:
- Object-oriented simulation platform for complex steady state and transient models of air conditioning, heat pump, and refrigeration systems
- Coupling of different systems inside the simulation environment: indoor modeling, multi-stage systems, water chillers
- Model library for components: e.g. accumulators, heat exchangers, compressors or expansion devices
- Graphic user interface for system definition and result demonstration based on QT libraries
- Models based on C++ or Modelica
The institute has expertise in developing user specific software applications based on object-oriented methods using C++ libraries for thermophysical data of solids and fluids, heat transfer and pressure drop correlations. It cooperates with universities and industry associations worldwide. Most of its research projects are conducted in collaboration with industry partners.
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| About the Institute for Thermodynamics |
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The institute's main research areas cover thermal systems, thermophysical data on working fluids, and thermodynamics. Under the current leadership of Prof. Dr. Jürgen Köhler its main focus lies on alternative cooling technologies and the natural refrigerant CO2.
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| References |
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IfT's clients include: Behr GmbH & CO KG, Bitzer Kühlmaschinenbau GmbH, Bock Kältemaschinen GmbH, Robert Bosch GmbH, Danfoss, KKI, Konvekta AG, OBRIST Engineering GmbH, TLK Thermo GmbH, Visteon, Volkswagen AG.
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