Moisture Diffusivity Data Compilation for Foodstuffs: Effect of Material Moisture Content and Temperature

Some Problems Related to Mathematical Modelling of Mass Transfer Exemplified of Convection Drying of Biological Materials

“…Therefore the water diffusion coefficient in the model of the second drying period describes the total transport of moisture and is called the effective diffusivity. The values of moisture diffusion coefficient for biological materials reported in the literature lie within the range of 10 -12 -10 -8 m 2 s -1 (mostly about 10 -10 m 2 s -1 ) (Doulia et al, 2000;Maroulis et al, 2001). It is known that moisture diffusion coefficient depends strongly on temperature (e.g.…”

“…Cuningham et al, 2007;Garcia-Pascual et al, 2006;Kaymak-Ertekin, 2002) and often very strongly indeed on the moisture content (e.g. Maroulis et al, 2001;Waananen & Okos, 1996) and on material structure (e.g. Ruiz-Cabrera et al, 1997).…”

Model-free estimation of mass fluxes based on concentration profiles. II. Effect of noise on concentration profiles and of time resolution

“…Water diffusivity in food materials has been the object of numerous studies and data compilations (Gekas, 1992;Krokida, Zogzas, & Maroulis, 2001;Maroulis, Saravacos, Panagiotou, & Krokida, 2001;Mittal, 1999;Saravacos, 1995;Zogzas, Maroulis, & MarinosKouris, 1996). However the reported values vary considerably from one study to another, which limits confidence and re-use.…”

Contribución al estudio de la aplicación de ultrasonidos de potencia en el secado convectivo de alimentos

“…La influencia de la humedad en la difusividad efectiva (Mulet, 1994;Teixeira y Tobinaga, 1998;Maroulis et al, 2001;WenJia et al, 2003;Ruiz-Cabrera et al, 2005a;Ruiz-Cabrera et al, 2005b). …”

“…Generalmente, los parámetros cinéticos de los modelos presentan una relación de tipo Arrhenius con la temperatura (Rosselló et al, 1992;Maroulis et al, 2001;Sanjuán et al, 2004;Mulet et al, 2005). En las Ec.…”