This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Effective Selection Methodology for a Louvered Fin Heat Exchanger Using Thermal Resistance and Number of Transfer Units Method
Technical Paper
2011-26-0090
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SIAT 2011
Language:
English
Abstract
Cross flow heat exchangers are very common in automotive vehicle thermal management systems. The most important and standard fitment of any vehicle is the radiator, a cross flow heat exchanger for engine cooling systems. As a vehicle manufacturer, selection of a cooling system based on the requirements is very critical especially when the radiators are sourced from multiple sources and of different configurations. So, these different types of radiator have to be compared on the same level for effective selection of heat exchangers. This demands the common methodology to be created to understand the heat exchanger performance with different geometrical input from different sources.
In this study, an empirical cum analytical based methodology has been developed for generating the performance characteristics of the louvered fin heat exchanger using the thermal resistance and Number of Transfer Units (NTU) method. This methodology was validated with the experimental data for an engine cooling radiator. Experimental approach involved selecting a radiator and subjecting it to a wind tunnel test for different air and coolant flow. Using these component characteristics, radiators of different make and specifications can be effectively and consistently compared. This methodology will reduce the number of vehicle cooling trails performed for replacing/selecting the radiators thereby reducing the product development lifecycle cost, and time.
Recommended Content
Authors
Topic
Citation
Govindaraj, D., "Effective Selection Methodology for a Louvered Fin Heat Exchanger Using Thermal Resistance and Number of Transfer Units Method," SAE Technical Paper 2011-26-0090, 2011, https://doi.org/10.4271/2011-26-0090.Also In
References
- Chang, Yu-Juei Wang, Chi-Chuan “A Generalized Heat Transfer Correlation For Louver Fin Geometry” Int. J. Heat Mass Transfer. 40 3 53 544 1997
- Jung, Dohoy Assanis, Dennis N. “Numerical Modeling of Cross Flow Compact Heat Exchanger with Louvered Fins using Thermal Resistance Concept” SAE Paper No. 2006-01-0726 2006
- Petukhov, B S “Advances in Heat Transfer” 6 Academic Press New York 1970
- Gnielinski, V Int. Chem. Eng. 16 359 1976
- Incropera, FP De Witt, DP Fundamentals of heat and mass Transfer 3rd New York John Wiley and Sons 1990
- Changa, Yu-Juei et al. “A Generalized Friction Correlation For Louver Fin Geometry” International Journal of Heat and Mass Transfer 43 2000 2237 2243
- Davenport, C J “Correlation for Heat Transfer and Flow Friction Characteristics of Louvered Fin” AIChE Symposium Series 79 25 1983 19 27
- Achaichia, A Cowell, T A “Heat Transfer and Pressure Drop Characteristics of Flat Tube and Louvered Plate Fin Surfaces” Exp. Thermal and Fluid Sci. 1 1988 147 157