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A single-effect evaporator is used to concentrate 60000 kg h-1 of a 40 wt % NaOH solution which is fed to the evaporator at 40°C. The concentrated liquid is a 55 wt % NaOH solution. Saturated steam at 3 atm is available for heating. The vapor space in the evaporator is at a pressure of 10 kPa. The overall heat transfer coefficient is 2000 W m-2 K-1. Determine:
a) The amount of vapor produced.
b) The area required for the evaporator. Include clearly values of relevant properties.
c) The economy.
Develop a software "program"1 to plot the equations of state we have discussed in class. The program should allow you to change Tc, Pc, and accentricityfor the substance of intere
write a notes on priming and foaming
What is migration current in polarography?
1. Consider the previous heat exchanger. Tune a proportional controller for a) GM = 2; PM = 45 degrees and c) MPH (maximum peak height) occurs at 2 dB (provides a z of ~ 0.4).
on doubling the concentration of reactant,the rate of reaction triples.what is the order of reaction?
A insulated vessel is divided by a partition into two parts. Initially, the left side contains steam at 300C, 20 bar, and the right side is evacuated. Then, the partition is sudden
Significant class of magnetic materials The most significant class of magnetic materials is the Ferro magnets: iron, nickel, cobalt and manganese, or their compounds (and a
alfred werner coordination number
In what important respect does the conductivity of a conductor differ from that of an intrinsic Semiconductor. It is well known that the conductivity of a conductor i
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