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Un evaporador de efecto simple est concentrando una alimentacin de 9072 kg/h de una solucin al 10 % en peso de NaOH en agua para

Un evaporador de efecto simple est concentrando una alimentacin de 9072 kg/h de una solucin al 10 % en peso de NaOH en agua para obtener un producto con 50 % de slidos. La presin del vapor saturado utilizado es de 42 kPa (manomtrica) y la presin en el espacio de vapor del evaporador es de 20 kPa (abs). El coeficiente global de transferencia de calor es 1988W/mk. Calcule el vapor utilizado, la economa de vapor en kg/vaporizado/kg de vapor y el rea para las siguientes condiciones de alimentacin: a. Temperatura de alimentacin de 288,8k(15,6c) b. Temperatura de alimentacin de 322,1 k (48,9 c)

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