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Amrollahi, A.; Rashidi, A.M.; Lotfi, R.; Emami Meibodi, M.; Kashefi, K.
International communications in heat and mass transfer, 07/2010, Letnik: 37, Številka: 6Journal Article
In this research, the convective heat transfer coefficients of water-based FMWNT nanofluid have been measured under both laminar and turbulent regimes flowing through a uniformly heated horizontal tube in entrance region. For the first time, we have compared effective parameters to measure the convective heat transfer coefficients for functionalized MWNT suspensions such as Re, mass fraction and temperature, altogether in entrance region. The experimental results indicate that the convective heat transfer coefficient of these nanofluids increases by up to 33–40% at a concentration of 0.25 wt.% compared with that of pure water in laminar and turbulent flows respectively and 20 °C.
