A triple-tube standard vertical-tube evaporator with a heating surface of 140 m^2 of each utility tube shall be used to

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A triple-tube standard vertical-tube evaporator with a heating surface of 140 m^2 of each utility tube shall be used to concentrate a solid solution of up to 35%. This solution ignores boiling point rise. It is supplied by a cruiser. The steam can be 120'C and the vacuum of the last utility tube is equivalent to 40'C boiling point The total coefficients are 1 to 2950, 2 to 2670, and 3 to 1360 and all specific heat can be written as 4.2 J/g'C and copy is ignored. The condensate goes out to that c