This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Comparison of components applied in air conditioning systems based on standard working fluids and on CO2 (R744)
Technical Paper
2009-36-0310
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
The increasing rate of vehicles with air-conditioning and the greenhouse potential of the standard working fluids (for example R134a) used in such installations requires revision of the system. CO2 air-conditioning (R744) provides an environmental-friendly and economical solution which, under certain climate conditions, use up to 20% less energy. The use of R744 arises some technological challenges as the pressures in a CO2 circuit (that can be six times higher than in a conventional circuit), CO2 leakage issues in the cabin, critical pressure relieve in expansion valve and redefined parameters and functionalities for control. Components of the system must be designed to these conditions. This paper purpose is to evaluate comparatively the differences in the requirements and its impacts in the constructive forms against components for systems based in conventional working fluids and CO2.
Recommended Content
| Technical Paper | Reduced Pressure Carbon Dioxide Cycle for Vehicle Climate Control |
| Technical Paper | CO2 Automotive A/C System Optimum High Pressure Control |
| Technical Paper | The Chrysler Corp. Turbine Car Heating and Ventilating System |
Citation
Rípoli, R. and Schelp, M., "Comparison of components applied in air conditioning systems based on standard working fluids and on CO2 (R744)," SAE Technical Paper 2009-36-0310, 2009, https://doi.org/10.4271/2009-36-0310.Also In
References
- KIM, M-H PETTERSEN, J. BULLARD, C.W. Fundamental Process and system design issues in CO 2 vapor compression systems Progress in Energy and Combustion Science 30 2004 119 174
- THE EUROPEAN PARLIAMENT AND THE COUNCIL OF THE EUROPEAN UNION Directive 2006/40/EC of the European Parliament and of the Council of 17 May 2006 - Relating To Emissions From Air-Conditioning Systems Motor Vehicles And Amending Council Directive 70/156/EEC Official Journal of the European Union Brussels 2006
- PEARSON, A. Carbon Dioxide — new uses for an old refrigerant International Journal of Refrigeration 28 2005 1140 1148
- HONGHYUN, C. RYU, C. KIM Y. Cooling Performance of a variable spped CO 2 cycle with an electronic expansion valve and internal heat exchanger International Journal of Refrigeration 30 2007 664 671
- FRODL, R. A, TILLE, T. High-Precision NDIR CO 2 Gas Sensor for Automotive Applications IEEE Sensors Journal N° 6 December 2006
- BOSCH ROBERT Components for CO 2 Air conditioning systems www.bosch.com 13 07 2009
- BOSCH ROBERT Press Release: Bosch Carbon Dioxide Sensor Saves Fuel http://www.bosch-press.com/tbwebdb/bosch-usa/en-US/index.cfm 13 07 2009
- BOSCH ROBERT Automotive Electronics Product Information Climate Control Sensor (CCS) for Measuring Carbon Dioxide (CO2) http://www.semiconductors.bosch.de/pdf/CCS_Produktinf_o_200906.pdf 16 07 2009
- ARNDT, M. SAUER M. Infrared Carbon Dioxide Sensor and its Applications in Automotive Air-Conditioning Systems Advanced Microsystems for Automotive Applications 2005 Springer Berlin Heidelberg 2005
- BROWN, JS Yana-Motta, S.F. Domanscki, P.A. Comparitive analysis of an automotive air conditioning systems operating with CO 2 and R134a International Journal of Refrugeration 25 2002 19 32
- FRODL, R. A TILLE, T. An automotive Bi-source spectroscopic carbon dioxide sensor with pressure compensation Snesors and Actuators B 127 2007 82 88
- BOSCH ROBERT Pressure sensor http://rb-k.bosch.de/en/powerconsumptionemissions/electric_controls/sensors/enginemanagement/pressuresensor.html 13 07 2007
- MATHUR, G.D. Carbon Dioxide as an Alternative Refrigerant for Automotive Air Conditioninig Systems in Energy Conversion Engineering Conference and Exhibit, 2000. (IECEC) 35th Intersociety 371 379 vol. 1 Las Vegas, NV, USA 2000
- BOSCH ROBERT ENGELHARDT J STOLL O ROESSER C Sensor Plug For Combined Pressure- And Temperature Measurement World International Property Organization http://www.wipo.int/pctdb/en/wo.jsp?IA=EP2007058613 2008