Experimental Study and CFD Modeling of the Ohmic Heating Process in a Static Two-Phase Biosolid – Liquid System

Abstract

<span style="font-size: 9pt; color: #000000; font-style: normal; font-variant: normal;"><em>The effective parameters on Ohmic heating in static system containing biosolid-water were studied.</em> <span style="font-size: 9pt; color: #000000; font-style: normal; font-variant: normal;"><em>The effects of distribution of particles, salinity and electric field strength on electrical conductivity,</em> <span style="font-size: 9pt; color: #000000; font-style: normal; font-variant: normal;"><em>profiles of temperature, heat generation have been investigated.</em> <span style="font-size: 9pt; color: #000000; font-style: normal; font-variant: normal;"><em>The experimental data verification with simulation results using computational fluid dynamics (CFD)</em> <span style="font-size: 9pt; color: #000000; font-style: normal; font-variant: normal;"><em>method were carried out. Governing equations (heat transfer and electrical equations) were</em> <span style="font-size: 9pt; color: #000000; font-style: normal; font-variant: normal;"><em>discretized with finite element method.</em> <span style="font-size: 9pt; color: #000000; font-style: normal; font-variant: normal;"><em>The experimental data and CFD results showed that in Ohmic heating process, the current diffusion</em> <span style="font-size: 9pt; color: #000000; font-style: normal; font-variant: normal;"><em>in all the products is faster than traditional methods and the diffusion rates are equal for both</em> <span style="font-size: 9pt; color: #000000; font-style: normal; font-variant: normal;"><em>biosolid-liquid phases.</em> </span></span></span></span></span></span></span><br style="font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" /><br class="Apple-interchange-newline" /></span></span>