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 / DI NATALE, Francesco; Bareschino, P.; Nigro, Roberto. - In: INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER. - ISSN 0017-9310. - STAMPA. - 53:19(2010), pp. 3525-3532. [10.1016/j.ijheatmasstransfer.2010.04.013]

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

DI NATALE, Francesco;NIGRO, ROBERTO
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.
2010
Heat transfer and void fraction profiles around a horizontal cylinder immersed in a bubbling fluidised bed / DI NATALE, Francesco; Bareschino, P.; Nigro, Roberto. - In: INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER. - ISSN 0017-9310. - STAMPA. - 53:19(2010), pp. 3525-3532. [10.1016/j.ijheatmasstransfer.2010.04.013]
File in questo prodotto:
File Dimensione Formato  
Heat transfer and void fraction by Di Natale_Bareschino_Nigro.pdf

non disponibili

Tipologia: Documento in Post-print
Licenza: Accesso privato/ristretto
Dimensione 424.62 kB
Formato Adobe PDF
424.62 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

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/11588/368494
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 38
  • ???jsp.display-item.citation.isi??? 30
social impact