This content is not included in your SAE MOBILUS subscription, or you are not logged in.
An Experimental and Computational Investigation of Water Condensation inside the Tubes of an Automotive Compact Charge Air Cooler
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 05, 2016 by SAE International in United States
Annotation ability available
To address the need of increasing fuel economy requirements, automotive Original Equipment Manufacturers (OEMs) are increasing the number of turbocharged engines in their powertrain line-ups. The turbine-driven technology uses a forced induction device, which increases engine performance by increasing the density of the air charge being drawn into the cylinder. Denser air allows more fuel to be introduced into the combustion chamber, thus increasing engine performance. During the inlet air compression process, the air is heated to temperatures that can result in pre-ignition resulting and reduced engine functionality. The introduction of the charge air cooler (CAC) is therefore, necessary to extract heat created during the compression process. The present research describes the physics and develops the optimized simulation method that defines the process and gives insight into the development of CACs. The present research develops a 3-D computational model using ANSYS® Fluent of the CAC internal flow with condensate and validates the predictions of the 3-D model using measurements from experimental data. Finally, the research presents a correlation that provides an approach for designing heat exchangers for practical applications that encounter moisture in the intake air stream. The overall benefit presented is an experimentally validated simulation methodology to evaluate and design CACs that function outside the condensate formation zone during vehicle operation modes.
CitationCash, R., Lumsdaine, E., Talekar, A., and AbdulNour, B., "An Experimental and Computational Investigation of Water Condensation inside the Tubes of an Automotive Compact Charge Air Cooler," SAE Technical Paper 2016-01-0224, 2016, https://doi.org/10.4271/2016-01-0224.
- Tang , Y. The Condensation within a CAC - Thermodynamics Analysis SAE Technical Paper 2011-01-1168 2011 10.4271/2011-01-1168
- Dalkilic , A.S. and Wongwises , S. Intensive literature review of condensation inside smooth and enhanced tubes Int. J. Heat Mass Transf. 52 15-16 3409 3426 2009 10.1016/j.ijheatmasstransfer.2009.01.011
- Dalkilic , A.S. , Celen , A. , Awad , M.M. , and Wongwises , S. A Critical review on the determination of convective heat transfer coefficient during condensation in smooth and enhanced tubes Heat Transf. Summer Conf. 2013
- Murase , T. , Wang , H.S. , and Rose , J.W. Effect of inundation for condensation of steam on smooth and enhanced condenser tubes Int. J. Heat Mass Transf. 49 17-18 3180 3189 2006 10.1016/j.ijheatmasstransfer.2006.02.003
- Vyskocil , L. , Schmid , J. , and Macek , J. CFD simulation of air-steam flow with condensation Nucl. Eng. Des. 279 147 157 2014 10.1016/j.nucengdes.2014.02.014
- Garcia , J. Exhaust Gas Condensate Corrosion Test on Low Pressure Cooling System of Aluminum Brazed EGR, ACAC and WCAC SAE Technical Paper 2012-01-1947 2012 10.4271/2012-01-1947
- Kakimpa , B. , Morvan , H.P. , and Hibberd , S. Thin-Film Flow Over a Rotating Plate: An Assessment of the Suitability of VOF and Eulerian Thin-Film Methods for the Numerical Simulation of Isothermal Thin-Film Flows ASME Turbo Expo 2015: Turbine Technical Conference and Exposition 2015
- Al Baydu C. , K.S. and H.P.M. Two-Phase Computational Modelling of a Spiral Bevel Gear Using a Eulerian Multiphase Model ASME Turbo Expo 2015: Turbine Technical Conference and Exposition 10 2015
- AbdulNour , B. Numerical Simulation of Vehicle Defroster Flow Field SAE Technical Paper 980285 1998 10.4271/980285
- Patankar , S. V. Numerical Heat Transfer and Fluid Flow Hemisphere, Washington, DC. 1980
- Pope , S.B. Turbulent Flows Cambridge University press 978-0521598866 2000
- Orszag , S. A. , Yakhot , V. , Flannery , W. S. , Boysan , F. , Choudhury , D. , Maruzewski , J. , & Patel , B. Renormalization Group Modeling and Turbulence Simulations Near-wall turbulent flows 1031 1046 1993
- White , F. and Christoph , G. A Simple New Analysis of Compressible Turbulent Two-Dimensional Skin Friction Under Arbitrary Conditions 1971
- Huang P. , Bradshaw P. , and T.C. Skin friction and velocity profile family for compressible turbulentboundary layers AIAA J. 31 9 1600 1604 1993
- Ressler , K. , Brucker , K. , and Nagurka , M. A Thermal Time-Constant Experiment * Int. J. Eng. Educ. 19 4 2003
- Cash , Robin A Quantitative Investigation of the Water Condensation Inside Tubes of Compact Charge Air Cooler Open Access Dissertation Michigan Technological University 2015