Heating, Refrigeration and Air-Conditioning

In the last years new aspects within Heating, Refrigerating and Air Conditioning have been established. At the moment the R&D work focuses on compression and absorption heat pumping systems as well as on environmentally more friendly mobile air-conditioning systems, in close cooperation with the competence centre “The Virtual Vehicle”.

R&D Focus

  • Compression & absorption heat pumping systems
  • Ground-coupled systems
  • IEA Heat Pump Programme
  • Solar assisted air conditioning and refrigeration
  • Mobile air conditioning & supplementary heating, alternative refrigerants and system optimisation in cooperation with the competence centre “Virtual Vehicle (ViF)"

 

Infrastruktur:

General test rigs:

  • Mechanical & electrical workshop
  • Chemical laboratory
  • Fuel cell laboratory
  • Chimney (up to 1,2 MW)
  • Central heat sink (water re-cooling system up to 5 MW)
  • Several (mobile ) heat sink & heat source systems
  • Climatic chamber (-20 to +40°C)
  • Vehicle air-conditioning test bench
  • Absorption heat pump system
  • Biomass gasifier (5kW)

 Measurement equipment

  • all typical sensors required for flow rate, pressure, humidity, temperature, etc.
  • Flame ionization detector (FID)
  • Gas analyzer (GA)
  • Gas chromatograph (GC)
  • Fourier transform infrared spectroscopy (FT-IR)

Head

Ao.Univ.-Prof. Dipl.-Ing. Dr.techn.
René
Rieberer
Phone
+43 316 873 - 7302

Research Associate

Hermann Halozan
Ao.Univ.-Prof.i.R. Dipl.-Ing. Dr.techn. tit.O.Univ.-Prof.
Fax
+43 (0) 316 / 873 - 7305
Business card
Andreas Heinz
Dipl.-Ing. (FH) Dr.techn.
Phone
+43 316 873 - 7313
Fax
+43 (316) 873 - 7305
Business card
Manuel Verdnik
Dipl.-Ing. BSc
Phone
+43 316 873 - 7304
Fax
-7305
Business card
Michael Walter Wernhart
Dipl.-Ing. BSc
Phone
+43 316 873 - 7801
Fax
+43 (316) 873 - 7305
Business card
Gerhard Pertiller
Dipl.-Ing. BSc
Phone
+43 316 873 - 7310
Business card

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current projects:

IEA HPT Annex 63 - Impact of heat pump placement on noise emissions
SMACS - Smart Maintenance of Rail HVAC Systems
DekarbWP - Decarbonisation of heating and cooling supply by means of absorption heat pumping systems
NECST - Next Generation Emission-Reduced Charging System Technology
SEPCOO - Simulation-based development of charge-minimized propane modules to improve the performance of CO2 refrigeration systems
EU - ENOUGH - European food chain supply to reduce GHG emissions by 2050
Multizyklon - Evaluation of a multicyclone and development of a multicyclone mask
IEA HPT Annex 58 - HTHPs - High temperature heat pumps
IEA HPT Annex 57 - MultVectorNetze - Flexibility by implementation of heat pumps in multi-vector energy systems and thermal networks

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completed projects:

AIrcraft - Increasing the efficiency of the Environmental Control System (ECS) through AI-assisted regulation
DySiWiP - Dynamic simulation models for high-temperature heat pumps for total system simulation of industrial processes
IEA HPT Annex 54 - Heat pump systems with "Low-GWP" refrigerants
R-DO it Clean - R-Design and Operation of Future Cleanrooms
Thermaflex - Thermal demand and supply as flexible elements of future sustainable energy systems
A3203 Transportkälteanlage - Comprehensive Energy Management - Simulationsmethodik zur onboard Energieeffizienz- und Akustikoptimierung einer Transportkälteanlage
HPC - Model based Control of Absorption Heat Pumping Systems
TransCrit - Trans-critical high temperature heat pump for waste heat recovery
IEA HPT Annex 49: Design and integration of heat pumps for nZEB
IEA HPT Annex 51 - Acoustic Signature of Heat Pumps
eco2jet - Evaluation and demonstration of an energy-efficient, cost-efficient and eco-friendly HVAC system
HybridHeat4San - Higly efficient combinations of photovoltaic and heat pumps for the retrofit market
Energieschwamm - The building as an energy sponge - stream purely - warmth out
IEA HPT Annex 50 - Heat pumps in Multi-Family Houses
IEA HPT Annex 48 - Industrial Heat Pumps Phase 2
FluePump - Efficiency enhancement for gas fired absorption heat pumps by means of a refrigerant-cooled flue gas condenser
IEA HPT Annex 47 - Heat Pumps in District Heating and Cooling systems
COOLSKIN - Facade-integrated System for Space-cooling
HotCycle - Refrigerant and Cycle Design for a High Temperature Heat Pump using a Separated Hood Compressor
IEA HPP Annex 42 - Heat Pumps in Smart Grids
solSPONGEhigh - High solar fraction through thermally activated building elements in urban energy systems
SOFCool - Combined Cooling, Heat and Power
DoublePump - New concept of a thermally driven solution pump suitable for small-capacity ammonia/water-absorption heat pumping systems
BioPower - Innovative biomass micro-CHP
SOptA - Optimization of NH3/H2O heat pumps by means of simulation
IEA HPP Annex 43: Fuel-driven Heat Pumps
IEA SHC Task 44 - Solar Heating an Cooling Task 44, Solar and Heat Pump Systems
IEA HPP Annex 43 - Fuel-driven Heat Pumps
IEA SHC Task 51 - IEA SHC Task 51: Solar Energy in Urban Planning
vif_B2T2 - Energy Efficient Refrigerant Curcuit for Hybrid & Electric Vehicles - Development Methodology
IEA HPP Annex 41: Cold Climate Heat Pumps
GreenHVAC4Rail - [Original in Deutsch: Gesamtoptimierte emissionsfreie Heating-, Ventilating- und Air Conditioning-Anlage für Rail-Anwendungen]
DAKTRis - Dynamic operational behaviour of absorption chillers in Trigeneration Systems
IEA Task4229 - IEA Task4229 Beteiligung Thermische Energie
The Bat - The thermal battery in the smart grid in combination with heat pumps - an interaction optimization
EU - COMTES - Combined development of compact thermal energy storage technologies
SolarGrids - Solar Energy and Thermal Networks: options and barriers for a long-lasting and integrative perspective
HyPump - hybrid heat pumping system technology
McSheep - New Materials and Control for a next generation of compact combined Solar and heat pump systems with boosted energetic and exergetic performance
NextGen - Absorption heat pump
HEKH-R744 - Hocheffizientes Kühl-und Heizsystem für E- und Hybridfahrzeuge basierend auf dem umweltfreundlichen Kältemittel R744
SolPumpEff - Highly efficient combinations of solar thermal and heat pump systems
Wärmemotor: Wissenschaftl Projekt-Begleitung "Kraft aus Niedertemperaturwärme"
SolarCoolingOpt - Optimization solar thermal cooling systems [Original in Deutsch: Primärenergetische Optimierung von Anlagen zur solaren Kühlung]
IEA HPP Annex 35 - IEA HPP Annex 35: Application of Industrial Heat Pumps
IonA - Machbarkeitsstudie Ionische Flüssigkeiten
ThermoPump - Thermally driven solvent pump for ammonia / water low heat absorption heat pumps
InnoGen - Innovative Generatorkonzepte für hocheffiziente direkt befeuerte Ammoniak/Wasser-Absorptionswärmepumpen
InnovAP - Feasibility Study Innovative Absorption Heat Pumping Process
IEA HPP Annex 34 - Thermally driven heat pumps for Heating & Cooling
IEA SHC TASK 38 Solar Air - Conditioning and Refrigeration" des Implementing Agreements on Solar Heating and Cooling, Teil IWT (Projekt 812853)
IEA HPP Annex 32 - Economical Heating and Cooling systems for low energy houses
VIF_FP2 - Future AC Systems Mobile Air Conditioning systems with the refrigerant R744
HVAC Simulation - Cycle and System Optimization (ViF_A2_T20)
Bio-AWP - Biomass-driven Ammonia / Water Absorption Heat Pump for Heating and Cooling
IEA HPP Annex 29 - Ground Source Heat Pumps - Overcoming Market and Technical Barriers
Mobile HVAC system (ViF_A2_T5)
COHEPS - Energy efficient and environmentally friendly heat pumping systems using CO2 as working fluid
Contact
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Division
Heating, Refrigeration and Air- Conditioning Ao.Univ.-Prof. Dipl.-Ing. Dr.techn.
René Rieberer Inffeldgasse 25/B
A 8010 Graz 
Office
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Sandra Oswald-Pauli
Mo-Fr: 09:00-12:00 Uhr
Raum: MB05 010 (5.OG)
Tel.: +43-316-873-7301
Fax: +43-316-873-7305

office.iwtnoSpam@tugraz.at