Fruit juice at 30 ° C containing 5% total solids concentrated via a single effect evaporator. The evaporator is operated in a vacuum at an evaporation temperature of 80 ° C, and 85% quality steam is supplied at 169.06 kPa. The desired concentration of the final product is 40% total solids. The rate of concentrated product leaving the evaporator is 1500 kg / hour. The specific heat of fruit juice is 4.05 kJ / (kg ° C), and the concentrated product is 3,175 kJ / (kg ° C). Count a. The required steam rate is = Answerkg / hour. b. Steam economy when the condensate temperature is released at 90 ° C. = Answer (kg of water evaporates / kg of steam)
Fruit juice at 30 ° C containing 5% total solids concentrated via a single effect evaporator. The evaporator is operated in a vacuum at an evaporation temperature of 80 ° C, and 85% quality steam is supplied at 169.06 kPa. The desired concentration of the final product is 40% total solids. The rate of concentrated product leaving the evaporator is 1500 kg / hour. The specific heat of fruit juice is 4.05 kJ / (kg ° C), and the concentrated product is 3,175 kJ / (kg ° C). Count a. The required steam rate is = Answerkg / hour. b. Steam economy when the condensate temperature is released at 90 ° C. = Answer (kg of water evaporates / kg of steam)
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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1. Fruit juice at 30 ° C containing 5% total solids concentrated via a single effect evaporator. The evaporator is operated in a vacuum at an evaporation temperature of 80 ° C, and 85% quality steam is supplied at 169.06 kPa. The desired concentration of the final product is 40% total solids. The rate of concentrated product leaving the evaporator is 1500 kg / hour. The specific heat of fruit juice is 4.05 kJ / (kg ° C), and the concentrated product is 3,175 kJ / (kg ° C). Count
a. The required steam rate is = Answerkg / hour.
b. Steam economy when the condensate temperature is released at 90 ° C. = Answer (kg of water evaporates / kg of steam)
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