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Un equipo de pasteurizaci n recibe leche a 1 2 C a raz n de 1 5 0 0 k g h . Para su

Un equipo de pasteurizacin recibe leche a 12C a razn de 1500kgh. Para su pasteurizacin se debe calentar a 72C. El calor necesario se aporta en un intercambiador de calor mediante vapor de agua. El vapor entra al calentador a 100C y sale del mismo en estado lquido a 95C. Calcule:
a) El calor que se debe aportar a la leche.
b) Cual es la cantidad de vapor necesaria.
s)
Datos:
Cpleche=3,85kJkg,agua(100C)=2676kJ??kg,cp,agua=4,18kJ??kg
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