Artículo
Heat Transfer Limitations in Supercritical Water Gasification
Autor/es | Gutiérrez Ortiz, Francisco Javier
López-Guirao, Francisco Jiménez-Espadafor Aguilar, Francisco José Benjumea Trigueros, José Manuel |
Departamento | Universidad de Sevilla. Departamento de Ingeniería Química y Ambiental Universidad de Sevilla. Departamento de Ingeniería Energética |
Fecha de publicación | 2022 |
Fecha de depósito | 2022-03-31 |
Publicado en |
|
Resumen | Supercritical water gasification (SCWG) is a promising technology for the valorization of
wet biomass with a high-water content, which has attracted increasing interest. Many experimental
studies have been carried out ... Supercritical water gasification (SCWG) is a promising technology for the valorization of wet biomass with a high-water content, which has attracted increasing interest. Many experimental studies have been carried out using conventional heating equipment at lab scale, where researchers try to obtain insight into the process. However, heat transfer from the energy source to the fluid stream entering the reactor may be ineffective, so slow heating occurs that produces a series of undesirable reactions, especially char formation and tar formation. This paper reviews the limitations due to different factors affecting heat transfer, such as low Reynolds numbers or laminar flow regimes, unknown real fluid temperature as this is usually measured on the tubing surface, the strong change in physical properties of water from subcritical to supercritical that boosts a deterioration in heat transfer, and the insufficient mixing, among others. In addition, some troubleshooting and new perspectives in the design of efficient and effective devices are described and proposed to enhance heat transfer, which is an essential aspect in the experimental studies of SCWG to move it forward to a larger scale. |
Agencias financiadoras | Consejeria de Economia y Conocimiento (Junta de Andalucia) P18-RT-2521 |
Identificador del proyecto | P18-RT-2521 |
Cita | Gutiérrez Ortiz, F.J., López Guirao, F., Jiménez-Espadafor Aguilar, F.J. y Benjumea Trigueros, J.M. (2022). Heat Transfer Limitations in Supercritical Water Gasification. Energies, 15 (1), 177. |
Ficheros | Tamaño | Formato | Ver | Descripción |
---|---|---|---|---|
EN_2022_Gutiérrez_Heat.pdf | 2.763Mb | [PDF] | Ver/ | |