2004
DOI: 10.1016/j.powtec.2004.02.003
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Statistical and frequency analysis of pressure fluctuations in spouted beds

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Cited by 65 publications
(49 citation statements)
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“…Spectral analysis of pressure fluctuations has been used to identify flow regimes of spouted beds (Taranto et al, 1997;Rocha et al, 1998;Xu et al, 2004;Piskova and Morl, 2007). This method was also employed by Freitas et al (2004) to characterise the flow regimes in a slot-rectangular column with˛= 150 mm, = 100 mm, and 1.4 mm diameter glass beads.…”
Section: Flow Regimesmentioning
confidence: 99%
“…Spectral analysis of pressure fluctuations has been used to identify flow regimes of spouted beds (Taranto et al, 1997;Rocha et al, 1998;Xu et al, 2004;Piskova and Morl, 2007). This method was also employed by Freitas et al (2004) to characterise the flow regimes in a slot-rectangular column with˛= 150 mm, = 100 mm, and 1.4 mm diameter glass beads.…”
Section: Flow Regimesmentioning
confidence: 99%
“…Instantaneous pressure fluctuation signals, as a parameter, reflect the complexity and nonlinearity of turbulent flow characteristics, to which more attention had been paid in chemical engineering (Sun et al, 2006;Xu et al, 2004). The profiles of the pressure fluctuation time series under different conditions were illustrated as in Figure 3.…”
Section: Experimental Results and Analysismentioning
confidence: 99%
“…Na análise no domínio da frequência das medidas de flutuação de pressão em leito de jorro, a distribuição de frequência, expressa na forma de espectros de potência, foi determinada por tratamento matemático logo após a obtenção das séries de tempo, aplicando a Transformada de Fourier, largamente empregada em trabalhos de identificação de regimes de contato em leitos móveis, como em Silva (1998), Xu et al (2004) …”
Section: Partículasunclassified
“…Desde a sua concepção, a técnica do leito de jorro vem sendo empregada em uma grande variedade de operações com partículas grossas, isto é, com dp > 1 mm, destacando-se a secagem, recobrimento e granulação de partículas, além de ser um potencial reator químico (XU et al, 2004).…”
Section: Introductionunclassified