A 1.5 weight % aqueous salt solution is concentrated to 4 weight % in a single-effect evaporator. The feed rate to the evaporator is F = 7500 kg / h and the feed is at 85 degree Celsius. The evaporator operates at 1 bar. By assuming that only pure solvent of water exists in the form of vapor from the feed, calculate the flow rate of such vapor V.

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What are the uses of quicklime?

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Explain the difference between cfm (cubic feet per minute) and scfm (standard cubic feet per minute)?

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Name some common causes of control valve noise?

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What is the difference between coagulation and flocculation in water treatment plant?

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For a centrifugal pump if the pump is running and we close the discharge valve what is the effect

11 Answers   Asian Paints, NFTDC, Reliance,

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Question 8 - A local utility burns coal having the following composition on a dry basis : Carbon (C) 83.05 %, hydrogen (H) 4.45 %, oxygen (O) 3.36 %, nitrogen (N) 1.08 %, sulfur (S) 0.7 % and ash 7.36 %. Calculate the ash free composition of the coal with reference to C, H, O, N and S.

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Which chemical is used as antiscalent in RO water treatement plant?

3 Answers   Dalkia, Power Plant,

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What is gibbs free energy?

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I am pg student of chemical engg. I am intrested Heat Transfer Subject . I want information about advance heat transfer related PG PROJECT

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What are the types of clarifier used in water treatement plant?

1 Answers   Adani,

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Question 37 - Calculate the bubble temperature T at P = 85-kPa for a binary liquid with x(1) = 0.4. The liquid solution is ideal. The saturation pressures are Psat(1) = exp [ 14.3 - 2945 / (T + 224) ], Psat(2) = exp [ 14.2 - 2943 / (T + 209) ] where T is in degree Celsius. Please take note that x(1) + x(2) = 1. Please take note that y(1) + y(2) = 1, y(1) = [ x(1) * Psat(1) ] / P, y(2) = [ x(2) * Psat(2) ] / P, * is multiplication. P is in kPa.

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