Consider a four-effect standard vertical tube, each effect has 140 m² of heating surface, is to be used to concentrate,

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Consider A Four Effect Standard Vertical Tube Each Effect Has 140 M Of Heating Surface Is To Be Used To Concentrate 1 (16.14 KiB) Viewed 25 times

Consider a four-effect standard vertical tube, each effect has 140 m² of heating surface, is to be used to concentrate, from 4% to 35% percent solids, the total boiling point elevation is 10°C. Forward feed is to be used. Saturated steam is available at 120°C, and the vacuum in the las effect corresponds to a boilling temperature of 40°C, the overall coefficients, in W/m²-K are 2950 in 1, 2670 in 11, 2070 in III and 1360 in IV, all specific heats may be taken as 4.2 J/g °C and radiation is negligible. Calculate the boiling point of solution in effect number 1. a. 107.7°C 101.5°C b. 112.3°C d. 116.4°C