Simulation of the temperature increase in pulsed electric field (PEF) continuous flow treatment chambers

Mass Transport Improvement by PEF - Applications in the Area of Extraction and Distillation

“…For example a PEF treatment using 1,5 kV/cm and 20 applied pulses leads to a release of glucose and fructose, which are precursors for Maillard reaction, and a facilitated uptake of sodium chloride (Janositz et al, 2010). A reduced browning and acrylamide formation has been reported (Lindgren et al, 2002). A comparison of the treatment of potatoes and apples shows different diffusion coefficients during OD for these two different food products.…”

Emerging Technologies for Targeted Food Processing

“…Many authors (Fiala et al 2001;Gerlach et al 2008;Jaeger et al 2009;Lindgren et al 2002;van den Bosch et al 2002) have described the temperature distribution in a PEF treatment chamber and reported the occurrence of high local temperatures due to the inhomogeneous distribution of the electric field, limited flow velocity, and recirculation of the liquid. Numerical simulations using computational fluid dynamics have attracted increased interest for this purpose since experimental measurement of the related parameters is not possible in most cases due to the small dimensions of the treatment chamber as well as the interference of the measuring device with the product flow and electric field.…”

Aplicación industrial de los pulsos eléctricos de alto voltaje para la pasteurización de alimentos: revisión de su viabilidad técnica y comercial

“…Esto ha de ser tenido en cuenta al definir las condiciones de procesado, ya que hay que garantizar que todo el alimento recibe el tratamiento mı´nimo adecuado (Meneses et al, 2011). Atendiendo a ello, en la u´ltima de´cada se ha generalizado el uso de me´todos nume´ricos de simulacio´n para mejorar el disen˜o de este tipo de ca´maras, tendiendo en cuenta tanto la distribucio´n del campo ele´ctrico y la temperatura como las caracterı´sticas del flujo de producto (Buckow, Schroeder, Berres, Baumann, & Knoerzer, 2010;Fiala, Wouters, van den Bosch, & Creyghton, 2001;Gerlach et al, 2008;Jaeger, Meneses, & Knorr, 2009;Lindgren, Aronsson, Galt, & Ohlsson, 2002).…”