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It is desired to concentrate a NaOH solution from 12.5 % to 40% in a double effect evaporator. 50,000 lb/hr of feed solution enters the evaporator at 120 oF, and steam at 15 psig is available for effecting the concentration. Vacuum in the 2nd effect is held at 24in. Hg, and water from a cooling tower is available at 85 oF. Estimate
(a) quantity of feed and water needs for the forward feed operation,
(b) quantity of feed and condenser water need for the backward feed operation,
(c) Surface need for the operation in (a), suppose U is 400 and 250 Btu/hr(ft2) (oF) for the first and second effect respectively. UD equal to 450 and 350 in two effects correspondingly.
INTRODUCTION : You have studied of LT-1 course that storage is usually a necessity in most scientific establishments. You know that sufficient and appropriate storage space should
1. In the system shown schematically below, water is supplied to a spray nozzle by a gear pump with a constant output of 20 US gpm. The flow rate of water discharged through t
Application of polymeric liquids in water distribution system
steps involved in road construction
Hi, my name is Luan Sousa, i am from Brazil and i am a chemical engineering student. I am developing a project of formox plant design and i would like to know about yields of conve
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given the displacement vectors A(3^i-4^j+4^k)m and B(2^i+3^j-7k)m,find the magnitudes of the vectors (a)C=A+B and (b)D=2A-B,also expressing each in terms of its rectangular compone
HOW CAN I BE ABLE TO CONTROL AND BALANCE THE INPUT AND OUT-PUT
What is wrong with each of the following attempts to write an electron configuration? Justify your answer with suitable explanation. (a) 1s22s3 (b) 1s22s22p23s2 (c) 1s22s23s2 (d) 1
introduction
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