3.3.1. Time resolved values
The evolution of the heat fluxes during the production of the
ice slurry is depicted in Fig. 8 for different operating conditions
(type of scraper, scraping speed and logarithmic mean temperature
difference). Fig. 8a and b correspond to two different
values of DTlog, averaged during the freezing stage of the
experiment (see Fig. 5), from the nucleation start until a 20% of
ice content is reached. The effects of different scraper systems
and scraping velocities are compared in each figure. The
starting of the freezing stage can be recognized distinctively
by the stabilization of the heat flux, which is a consequence of
the stabilization of the process temperature. The heat transfer
coefficients corresponding to the heat fluxes shown in Fig. 8a
and b, calculated according to Eq. (10), are represented
respectively in Fig. 9a and b.
 
3.3.1. Time resolved valuesThe evolution of the heat fluxes during the production of theice slurry is depicted in Fig. 8 for different operating conditions(type of scraper, scraping speed and logarithmic mean temperaturedifference). Fig. 8a and b correspond to two differentvalues of DTlog, averaged during the freezing stage of theexperiment (see Fig. 5), from the nucleation start until a 20% ofice content is reached. The effects of different scraper systemsand scraping velocities are compared in each figure. Thestarting of the freezing stage can be recognized distinctivelyby the stabilization of the heat flux, which is a consequence ofthe stabilization of the process temperature. The heat transfercoefficients corresponding to the heat fluxes shown in Fig. 8aand b, calculated according to Eq. (10), are representedrespectively in Fig. 9a and b.
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