Numerical analysis of the heat transfer in an oscillatory flow around the heat exchangers of thermoacoustic systems

O.M. Ilori, Artur J. Jaworski, Xiaoan Mao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Heat exchangers are considered to be critical components of thermoacoustic systems and their appropriate design and development are essential for the development of next generation of thermoacoustic systems. In this work, the heat transfer and oscillatory flow behaviour in and around three identical parallel-plate heat exchangers with constant wall temperatures were investigated using 2-D CFD simulation method. The heat exchangers are arranged in series (one 'heat source' centrally positioned between two 'heat sinks') and placed within an oscillatory flow induced by a standing wave. The effects of three different edge shapes (blunt, ogive and round) at the entrance and exit of heat exchanger channels on the oscillatory velocity and temperature fields and the wall heat fluxes are reported for the drive ratios between 0.3 and 2.0%. The descriptions of the underlying oscillatory flow and heat transfer physics are given.
LanguageEnglish
Title of host publicationProceedings of CHT-15
Subtitle of host publication6th International Symposium on Advances in Computational Heat Transfer, May 25-29, 2015, Rutgers University, New Brunswick, NJ, USA
Pages1052-1066
ISBN (Electronic)9781567004618
DOIs
Publication statusPublished - 2015
Externally publishedYes
Event6th International Symposium on Advances in Computational Heat Transfer - Rutgers University, New Brunswick, United States
Duration: 25 May 201529 May 2015
Conference number: 6
http://old.ichmt.org/cht-15/ (Link to Event Website)

Conference

Conference6th International Symposium on Advances in Computational Heat Transfer
Abbreviated titleCHT'15
CountryUnited States
CityNew Brunswick
Period25/05/1529/05/15
Internet address

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Thermoacoustics
Heat exchangers
Numerical analysis
Heat transfer
Heat sinks
Heat flux
Computational fluid dynamics
Temperature distribution
Physics
Temperature

Cite this

Ilori, O. M., Jaworski, A. J., & Mao, X. (2015). Numerical analysis of the heat transfer in an oscillatory flow around the heat exchangers of thermoacoustic systems. In Proceedings of CHT-15: 6th International Symposium on Advances in Computational Heat Transfer, May 25-29, 2015, Rutgers University, New Brunswick, NJ, USA (pp. 1052-1066) https://doi.org/10.1615/ICHMT.2015.IntSympAdvComputHeatTransf.950
Ilori, O.M. ; Jaworski, Artur J. ; Mao, Xiaoan. / Numerical analysis of the heat transfer in an oscillatory flow around the heat exchangers of thermoacoustic systems. Proceedings of CHT-15: 6th International Symposium on Advances in Computational Heat Transfer, May 25-29, 2015, Rutgers University, New Brunswick, NJ, USA. 2015. pp. 1052-1066
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title = "Numerical analysis of the heat transfer in an oscillatory flow around the heat exchangers of thermoacoustic systems",
abstract = "Heat exchangers are considered to be critical components of thermoacoustic systems and their appropriate design and development are essential for the development of next generation of thermoacoustic systems. In this work, the heat transfer and oscillatory flow behaviour in and around three identical parallel-plate heat exchangers with constant wall temperatures were investigated using 2-D CFD simulation method. The heat exchangers are arranged in series (one 'heat source' centrally positioned between two 'heat sinks') and placed within an oscillatory flow induced by a standing wave. The effects of three different edge shapes (blunt, ogive and round) at the entrance and exit of heat exchanger channels on the oscillatory velocity and temperature fields and the wall heat fluxes are reported for the drive ratios between 0.3 and 2.0{\%}. The descriptions of the underlying oscillatory flow and heat transfer physics are given.",
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Ilori, OM, Jaworski, AJ & Mao, X 2015, Numerical analysis of the heat transfer in an oscillatory flow around the heat exchangers of thermoacoustic systems. in Proceedings of CHT-15: 6th International Symposium on Advances in Computational Heat Transfer, May 25-29, 2015, Rutgers University, New Brunswick, NJ, USA. pp. 1052-1066, 6th International Symposium on Advances in Computational Heat Transfer, New Brunswick, United States, 25/05/15. https://doi.org/10.1615/ICHMT.2015.IntSympAdvComputHeatTransf.950

Numerical analysis of the heat transfer in an oscillatory flow around the heat exchangers of thermoacoustic systems. / Ilori, O.M.; Jaworski, Artur J.; Mao, Xiaoan.

Proceedings of CHT-15: 6th International Symposium on Advances in Computational Heat Transfer, May 25-29, 2015, Rutgers University, New Brunswick, NJ, USA. 2015. p. 1052-1066.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Ilori OM, Jaworski AJ, Mao X. Numerical analysis of the heat transfer in an oscillatory flow around the heat exchangers of thermoacoustic systems. In Proceedings of CHT-15: 6th International Symposium on Advances in Computational Heat Transfer, May 25-29, 2015, Rutgers University, New Brunswick, NJ, USA. 2015. p. 1052-1066 https://doi.org/10.1615/ICHMT.2015.IntSympAdvComputHeatTransf.950