A triple-acting evaporator with direct current power must concentrate 15000 kg/h of an aqueous solution entering 25 C from 10% to 40% by weight. For the heating is available live steam at 2.2 at, and on the third effect a vacuum is maintained that allows the solution to boil at 30ºC. The dissolution does not present an appreciable increase in the point of boiling and its specific heat is equal to the unit for all concentrations. The integral heat transmission coefficients for effects I, II, III, in Kcal/m2*h*ºC, they are worth 2800, 2500 and 1600. Apply to each effect: a) Hourly consumption of heating steam b) Boiling temperature c) The heating surface.

Fruit juices at 25 ° C containing 5% total solids were 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 2000 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 = Answer kg / hour. b. Steam economy when the condensate temperature is released at 90 ° C. = Answer (kg of water evaporated / kg of steam)

I need the answer as soon as possible

2 A triple-acting evaporator with direct current power must concentrate 15000 kg/h of an aqueous solution entering 25 C from 10% to 40% by weight. For the heating is available live steam at 2.2 at, and on the third effect a vacuum is maintained that allows the solution to boil at 30ºC. The dissolution does not present an appreciable increase in the point of boiling and its specific heat is equal to the unit for all concentrations. The integral heat transmission coefficients for effects I, II, III, in Kcal/m2*h*ºC, they are worth 2800, 2500 and 1600. Apply to each effect: a) Hourly consumption of heating steam b) Boiling temperature c) The heating surface.

Fruit juices at 25 ° C containing 5% total solids were 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 2000 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 = kg / hour. b. Steam economy when the condensate temperature is released at 90 ° C. = (kg of water evaporates / kg of steam)

Fruit juices at 20 ° C containing 5% total solids were 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 3000 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)

1. Fruit juice at 20 ° 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 90% 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 2500 kg / hour. The specific heat of fruit juice is 4.05 kJ / (kg ° C), and the concentrated product 3.175 kJ / (kg ° C). CountA. The required steam rate is = Answererkg / hour.b. Steam economy if the condensate temperature cannot be released at 90 ° C. = Answer (kg evaporated air / kg steam)