P. Verboven et al., Computational fluid dynamics modelling and validation of the temperature distribution in a forced convection oven, J FOOD ENG, 43(2), 2000, pp. 61-73
This paper discusses the validation of a Computational Fluid Dynamics (CFD)
model to calculate the heat transfer in an industrial electrical forced-co
nvection oven. The CFD model consists of the continuity, momentum and energ
y equation with the standard k-epsilon approach to model the flow turbulenc
e. Density effects are accounted for through a weakly compressible Formulat
ion. Time-dependent boundary conditions and source terms are derived From a
simplified lumped model, which results in a good qualitative agreement of
the calculated oven temperatures and the measured temperature distribution.
The average oven temperature difference between measurements and predictio
ns is 4.6 degrees C for a set point of 200 degrees C. The heating uniformit
y of PVC bricks in different configurations was calculated with the CFD mod
el, but the wail functions in the k-epsilon model limit the accuracy to a q
ualitative agreement. A correlation was established between the calculated
flow field variables and measured surface heat transfer coefficients. (C) 2
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