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Heat Transfer Enhancement through Advanced Casting Technologies
Technical Paper
2020-01-1162
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
There is growing interest in additive manufacturing technologies for prototype if not serial production of complex internal combustion engine components such as cylinder heads and pistons. In support of this general interest the authors undertook an experimental bench test to evaluate opportunities for cooling jacket improvement through geometries made achievable with additive manufacturing. A bench test rig was constructed using electrical heating elements and careful measurement to quantify the impact of various designs in terms of heat flux rate and convective heat transfer coefficients. Five designs were compared to a baseline - a castable rectangular passage. With each design the heat transfer coefficients and heat flux rates were measured at varying heat inputs, flow rates and pressure drops. Four of the five alternative geometries outperformed the baseline case by significant margins. The numerical margins were dependent on design constraints; for example, the heat transfer coefficient at a given flow rate, or heat transfer coefficient versus required pumping power.
The authors also recognize the practical limitations of additive manufacturing technologies for serial production. A second important aspect of this work was to address practical methods for incorporating the findings in volume engine production. Several approaches are discussed, and initial assessments of practicality are presented.
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Hoag, K., Hoffmeyer, M., Denholm, K., and Strong, J., "Heat Transfer Enhancement through Advanced Casting Technologies," SAE Technical Paper 2020-01-1162, 2020, https://doi.org/10.4271/2020-01-1162.Data Sets - Support Documents
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References
- Finlay , I. , Boyle , R. , Pirault , J. , and Biddulph , T. Nucleate and Film Boiling of Engine Coolants Flowing in a Uniformly Heated Duct of Small Cross Section SAE Technical Paper 870032 1987 https://doi.org/10.4271/870032
- Finlay , I.C. , Gallacher , G.R. , Biddulph , T.W. , and Marshall , R.A. The Application of Precision Cooling to the Cylinder Head of a Small, Automotive, Petrol Engine SAE Technical Paper 880263 1988 https://doi.org/10.4271/880263
- Campbell , N. , Hawley , J. , Leathard , M. , and Horrocks , R. Nucleate Boiling Investigations and the Effects of Surface Roughness SAE Technical Paper 1999-01-0577 1999 https://doi.org/10.4271/1999-01-0577
- Dittus , F. and Boelter , L. Heat Transfer in Automobile Radiators of the Tubular Type International Communications in Heat and Mass Transfer 12 1 3 22 1985 10.1016/0735-1933(85)90003-X
- Rohsenow , W. and Division of Industrial Cooperation, M.I. of T 1951
- Vachon , R. , Nix , G. , and Tanger , G. Evaluation of Constants for the Rohsenow Pool-Boiling Correlation Journal of Heat Transfer 90 2 239 1968 10.1115/1.3597489
- Pioro , I. Experimental Evaluation of Constants for the Rohsenow Pool Boiling Correlation International Journal of Heat and Mass Transfer 42 11 2003 2013 1999 10.1016/S0017-9310(98)00294-4