Non-isothermal crystallization kinetics has been traditionally predicted using the Nakamura crystal growth model, which is an integral form of Avrami equation under assumption that non-isothermal can be explained a series infinitesimal isothermal steps. However, model often overpredicts fraction near end because ignoring slower secondary kinetics. In this study, dual proposed to capture both pr...

This study compares the feature of different media with the combination of selective with non-selective media in a TAL method for recovery of Listeria innocua cells exposed to thermal treatments. Experiments were conducted in broth at constant temperature (52.5 and 65.0 °C) and pH (4.5 and 7.5) conditions, using NaCl or glycerol to adjust water activity to 0.95. Four different media were used i...

To better understand pyrolysis for upscaling purposes, a kinetic characterization of the process is necessary every feedstock. Laboratory experiments allow identification apparent models. This paper aims at investigation peach seeds’ slow pyrolysis. Peach seeds from Greek fruits pyrolyzed under inert atmospheric conditions different temperatures (475–785 °C), heating rates (100–250 °C/min) and ...

The glass transition in amorphous poly(ethylene terephthalate) is studied by thermally stimulated depolarization currents (TSDC) and differential scanning calorimetry (DSC). The ability of TSDC to decompose a distributed relaxation, as the glass transition, into its elementary components is demonstrated. Two polarization techniques, windows polarization (WP) and non–isothermal windows polarizat...

The glass transition in amorphous poly(ethylene terephthalate) is studied by thermally stimulated depolarization currents (TSDC) and differential scanning calorimetry (DSC). The ability of TSDC to decompose a distributed relaxation, as the glass transition, into its elementary components is demonstrated. Two polarization techniques, windows polarization (WP) and non–isothermal windows polarizat...

Villa [1] interpreted 39Ar loss experiments performed with a low-temperature, igneous K-feldspar (gal) as being inconsistent with multi-diffusion domain model (MDD; see [2]). The applicability of the MDD model for gal was dismissed in [1] exclusively on the basis of two features of the experiments: (1) initial steps at lower temperature produced more gas loss than initial steps at higher temper...

Many phenomena affect devolatilization of biomass particles, including mass and heat transfer, chemical reactions physical transformation. Mathematical models that are capable to describe pyrolysis can greatly assist the large-scale development optimization processes, but be implemented into simulation need simplified at a certain degree. In present study, an existing mathematical model is used...

this article investigates the nonlinear, steady boundary layer flow and heat transfer of an incompressible eyring-powell non-newtonian fluid from an isothermal sphere with biot number effects. the transformed conservation equations are solved numerically subject to physically appropriate boundary conditions using a second-order accurate implicit finite-difference keller box technique. the influ...

in this paper, a new systematic design methodology has been developed for thes imultaneous energy and water minimization in multiple-contaminant systems that also feature maximum re-use of water. in addition to allowing re-use of water in multiple-contaminant systems, issues about heat losses and flowrate changes inside unit operations have also been incorporated in this new design method. to i...

The characterization of the crystallization kinetics of an amorphous soft magnetic alloy, Fe88Zr7B4Cu1, called NANOPERM, is presented. Vibrating sample magnetometry (VSM), X-ray diffractometry, and differential scanning calorimetry have been used to observe crystallization kinetics. The VSM observations take advantage of the Curie temperature of the amorphous phase c amorphous of the NANOPERM a...