On the proper interpretation of nanofluid convective heat transfer

M. H. Buschmann*, R. Azizian, T. Kempe, J. E. Juliá, R. Martínez-Cuenca, B. Sundén, Z. Wu, A. Seppälä, T. Ala-Nissila

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference contributionScientificvertaisarvioitu

Abstrakti

Technological developments of the last decades allow the production and the dispersion of particles of sizes ranging between 10 and 100 nm in liquids. In a large number of recent studies the resulting nanofluids have been reported to display anomalously high increase in convective heat transfer. The present study compiles experiments from five independent research teams investigating convective heat transfer in nanofluid flow in pipes (laminar and turbulent), pipe with inserted twisted tape, annular counter flow heat exchanger, and coil and plate heat exchangers. The results of all these experiments unequivocally confirm that Newtonian nanofluid flow can be consistently characterized by employing Nusselt number correlations obtained for single-phase heat transfer liquids such as water when the correct thermophysical properties of the nanofluid are utilized. It is also shown that the heat transfer enhancement provided by nanofluids equals the increase in the thermal conductivity of the nanofluid as compared to the base fluid independent of the nanoparticle concentration or material. These results demonstrate that no anomalous phenomena are involved in thermal conduction and forced convection based heat transfer of water based nanofluids. The experiments are theoretically supported by a fundamental similarity analysis of nanoparticle motion in nanofluid flow.

AlkuperäiskieliEnglanti
OtsikkoInternational Heat Transfer Conference
Sivut2855-2862
Sivumäärä8
Vuosikerta2018-August
TilaJulkaistu - 1 tammikuuta 2018
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisuussa
TapahtumaInternational Heat Transfer Conference - Beijing, Kiina
Kesto: 10 elokuuta 201815 elokuuta 2018
Konferenssinumero: 16

Julkaisusarja

NimiInternational Heat Transfer Conference
ISSN (painettu)2377-424X

Conference

ConferenceInternational Heat Transfer Conference
LyhennettäIHTC
MaaKiina
KaupunkiBeijing
Ajanjakso10/08/201815/08/2018

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  • Siteeraa tätä

    Buschmann, M. H., Azizian, R., Kempe, T., Juliá, J. E., Martínez-Cuenca, R., Sundén, B., ... Ala-Nissila, T. (2018). On the proper interpretation of nanofluid convective heat transfer. teoksessa International Heat Transfer Conference (Vuosikerta 2018-August, Sivut 2855-2862). (International Heat Transfer Conference).