Parametric studies on automotive radiators

• Published in: Applied thermal engineering Vol. 27; no. 11; pp. 2033 - 2043
• Main Authors: Oliet, C., Oliva, A., Castro, J., Pérez-Segarra, C.D.
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01-08-2007; Elsevier
• Subjects: Applied sciences; Automotive radiators; Devices using thermal energy; Energy; Energy. Thermal use of fuels; Engine cooling; Exact sciences and technology; Fin-and-tube heat exchangers; Heat exchangers (included heat transformers, condensers, cooling towers); Parametric studies; Parametric studies; Engine cooling; Automotive radiators; Fin-and-tube heat exchangers; Parametric analysis; Coolant; Computational fluid dynamics; Fin; Modeling; Operating conditions; Heat exchanger; Cooling system; Performance; Radiator
• ISSN: 1359-4311
• DOI: 10.1016/j.applthermaleng.2006.12.006

This paper presents a set of parametric studies performed on automotive radiators by means of a detailed rating and design heat exchanger model developed by the authors. This numerical tool has been previously verified and validated using a wide experimental data bank. A first part of the analysis focuses on the influence of working conditions on both fluids (mass flows, inlet temperatures) and the impact of the selected coolant fluid. Following these studies, the influence of some geometrical parameters is analysed (fin pitch, louver angle) as well as the importance of coolant flow lay-out on the radiator global performance. This work provides an overall behaviour report of automobile radiators working at usual range of operating conditions, while significant knowledge-based design conclusions have also been reported. The results show the utility of this numerical model as a rating and design tool for heat exchangers manufacturers, being a reasonable compromise between classic
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NTU methods and CFD.