The present work deals with a thermo-fluid analysis of a collinear cylindrical ohmic heater in laminar flow. The geometry of interest is a circular electrical insulated glass pipe with two electrodes at the pipe ends. For this application, since the electrical conductivity of a liquid food strongly depends on the temperature, the thermal analysis of an ohmic heater requires the simultaneous solution of the electric and thermal fields In the present work the analysis of the above fields has been decoupled by means of an iterative procedure. The thermal field has been calculated by means of an analytical solution, which leads to fast calculations for the temperature distribution in the heater. Some considerations of practical interest for the design are finally given.
THERMO-FLUID ANALYSIS OF A CYLINDRICAL COLLINEAR OHMIC STERILIZER IN LAMINAR FLOW
PESSO, Tommaso;PIVA, Stefano
2009
Abstract
The present work deals with a thermo-fluid analysis of a collinear cylindrical ohmic heater in laminar flow. The geometry of interest is a circular electrical insulated glass pipe with two electrodes at the pipe ends. For this application, since the electrical conductivity of a liquid food strongly depends on the temperature, the thermal analysis of an ohmic heater requires the simultaneous solution of the electric and thermal fields In the present work the analysis of the above fields has been decoupled by means of an iterative procedure. The thermal field has been calculated by means of an analytical solution, which leads to fast calculations for the temperature distribution in the heater. Some considerations of practical interest for the design are finally given.I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
