Effective Selection Methodology for a Louvered Fin Heat Exchanger Using Thermal Resistance and Number of Transfer Units Method 2011-26-0090
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.
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. Download Citation
Author(s):
D. Govindaraj
Affiliated:
Ashok Leyland Technical Center
Pages: 7
Event:
SIAT 2011
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Engine cooling systems
Heat exchangers
Thermal management
Radiators
Wind tunnel tests
Coolants
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