caa a22 4500 378928015 CHVBK 20180305123622.0 cr unu---uuuuu 161128e20040213xx s 000 0 eng 10.2202/1542-6580.1113 doi (NATIONALLICENCE)gruyter-10.2202/1542-6580.1113 Nonlinear Dynamic Analysis of the Local Heat Transfer Rate in Three-Phase Reactors [Elektronische Daten] [Wei Chen, Atsushi Tsutsumi, Yoshiki Shigaki, Kentaro Otawara] In this present work, nonlinear dynamic analysis was performed to the fluctuation signals of the local heat transfer rate measured in three-phase reactors of different scales to characterize the dynamics of three-phase reactors. The results of nonlinear test with surrogate data give evidence of nonlinear determinism in heat transfer rates series. The chaotic nature of the local heat transfer rate was further characterized in terms of the correlation dimension and Kolmogorov entropy. It was found that the correlation dimensions were in the range between 2.0 and 4.0 and Kolmogorov entropies were varied with the change of measurement positions and the operating conditions. With the increase of column scale or the addition of solids, Kolmogorov entropies decrease significantly. The dependence of chaotic parameters on the column scale is considered to be closely related to the different macroscopic flow structures observed in three-phase reactors of different scales. ©2011 Walter de Gruyter GmbH & Co. KG, Berlin/Boston Bubble Columns nationallicence Local Heat Transfer nationallicence Nonlinear Test nationallicence Surrogate Data nationallicence Chaos Analysis nationallicence Chen Wei The University of Tokyo, weichen@chemsys.t.u-tokyo.ac.jp aut Tsutsumi Atsushi The University of Tokyo, tsutsumi@chemsys.t.u-tokyo.ac.jp aut Shigaki Yoshiki Kureha Chemical Industries, shigaki@kureha.co.jp aut Otawara Kentaro Kureha Chemical Industry, ootawa.k@kte.co.jp aut International Journal of Chemical Reactor Engineering De Gruyter 2/1(2004-02-13) 2:1 2004 2 ijcre https://doi.org/10.2202/1542-6580.1113 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.2202/1542-6580.1113 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chen Wei The University of Tokyo, weichen@chemsys.t.u-tokyo.ac.jp aut NATIONALLICENCE 700 1- Tsutsumi Atsushi The University of Tokyo, tsutsumi@chemsys.t.u-tokyo.ac.jp aut NATIONALLICENCE 700 1- Shigaki Yoshiki Kureha Chemical Industries, shigaki@kureha.co.jp aut NATIONALLICENCE 700 1- Otawara Kentaro Kureha Chemical Industry, ootawa.k@kte.co.jp aut NATIONALLICENCE 773 0- International Journal of Chemical Reactor Engineering De Gruyter 2/1(2004-02-13) 2:1 2004 2 ijcre CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter