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EVAPORADOR MULTIPLE EFECTO EN CORRIENTE DIRECTA: ------------------------------------------------

1.- NUMERO DE EFECTOS, CORRIENTES DE ALIMENTO Y CONDICIONES DEL VAPOR SATURADO: -------------------------------------------------------------------------------

1.1.- NUMERO DE EFECTOS: Numero de efectos =2 ---------------------------------------------

1.2.- CORRIENTES DE ALIMENTO: -----------------------------

Caudal conocido: Caudal de entrada de alimento Wa [kg/h] Temperatura del Alimento Entrada [C] =50,0 1.3.- CONDICIONES DEL VAPOR SATURADO: -------------------------------------

Cmara de condensacin del primer efecto: Conocemos presin de la cmara (Pc) Cmara de evaporacin del ultimo efecto y bomba de vacio: Conocemos Presin de la cmara (Ps) Calor especifico del vapor: Cpv [kJ/kg C] =2,09 2.- COEFICIENTES GLOBALES DE TRANSMISION DE CALOR Y CALOR ESPECIFICO DEL ALIMENTO: ----------------------------------------------------------------------------------

2.1.- COEFICIENTES GLOBALES DE TRANSMISION DE CALOR: ----------------------------------------------------

Coeficientes globales de transmisin de calor: U1,U2,------,U(n) [W/m2 C]: 1400,00 1100,00 2.2.- CALOR ESPECIFICO DEL ALIMENTO: ------------------------------------

Cp en funcin de xws del alimento en cada efecto: Cp = a+bX+cX2+dX3 [kJ/kg C] a =4,18, b =-3,34 c =0,00 d =0,00 3.- OPCIONES PARA EL CALCULO DEL AUMENTO EBULLOSCOPICO: -------------------------------------------------------

Existe Aumento ebulloscpico? SI OPCION (A) Aumento ebulloscpico de soluciones azucaradas en funcin de la concentracin de alimento C en [*Brix], la presin de cada efecto P en [mbar] y las constantes empricas alfa, beta, delta, y gamma, de la siguiente correlacin: Te = alfa*C^beta*P^delta*exp (gamma*C) [C] Zumos: alfa*10^2= 1,360; beta= 0,749; delta=0,106; gamma*10^2= 3,390 4.- RESULTADOS PARA CADA ITERACION: -----------------------------------

Numero de iteraciones totales = 2 RESULTADOS PARA LA ITERACION NUMERO 1: --------------------------------------

Caudal, concentracin, y calor especifico de las corrientes de alimento: wa,w1,-------,wc [kg/h]: 3480,00 2131,32 725,00 xwa,xw1,-------,xwc [kg s/kg]: 0,150 0,245 0,720 Cpa,Cp1,-------,Cpc [kJ/kg C]:

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