Laminar forced convection in a cylindrical collinear ohmic sterilizer | Zendy

T. Pesso | Zendy; S. Piva | Zendy

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Laminar forced convection in a cylindrical collinear ohmic sterilizer

Author(s) -

T. Pesso,

S. Piva

Publication year - 2016

Publication title -

thermal science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.339

H-Index - 43

eISSN - 2334-7163

pISSN - 0354-9836

DOI - 10.2298/tsci151105124p

Subject(s) - laminar flow , ohmic contact , mechanics , thermal , materials science , thermal conductivity , convection , work (physics) , joule heating , decoupling (probability) , thermodynamics , physics , composite material , layer (electronics) , control engineering , engineering

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 electrically insulated glass pipe with two electrodes at the pipe ends. For this application, since the electrical conductivity of a liquid food depends strongly 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 involves decoupling the above fields by means of an iterative procedure. The thermal field has been calculated using an analytical solution, which leads to fast calculations for the temperature distribution in the heater. Some considerations of practical interest for the design are also given.

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