The local void fraction profile around a surface immersed in a fluidised bed has a great importance for the estimation of transport phenomena and chemical reaction rates in these units but it is rarely reported in literature. The scope of this work is to demonstrate that heat transfer measurements can be reliably used to derive the void fraction profile once a proper correlation model is available. To this aim, measurements of local heat transfer coefficient around a horizontal cylinder were performed and the angular void fraction profile was reconstructed with a new heat transfer model. The modeled void fraction profile resulted coherent with experimental and numerical evidences available in literature.

Heat transfer and void fraction profiles around a horizontal cylinder immersed in a bubbling fluidised bed

BARESCHINO P;
2010

Abstract

The local void fraction profile around a surface immersed in a fluidised bed has a great importance for the estimation of transport phenomena and chemical reaction rates in these units but it is rarely reported in literature. The scope of this work is to demonstrate that heat transfer measurements can be reliably used to derive the void fraction profile once a proper correlation model is available. To this aim, measurements of local heat transfer coefficient around a horizontal cylinder were performed and the angular void fraction profile was reconstructed with a new heat transfer model. The modeled void fraction profile resulted coherent with experimental and numerical evidences available in literature.
Heat transfer; Fluidised bed; Surface void fraction; Horizontal cylinder
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.12070/3965
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 34
  • ???jsp.display-item.citation.isi??? 27
social impact