heat transfer, Chemistry

Assignment Help:
54) Note: This problem is worth double credit.It is desired to concentrate a caustic soda solution from 12.5 to 40.0% in a double-effect evaporator. Feed solution at a flow rate of 50,000 lb/h enters the evaporator at 120?F, and steam at 15 psig is available to concentrate this solution. Pressure in the vapor space of the second effect is kept at 5.92 in Hg absolute (24 in Hg vacuum), and water at 85?F from a cooling tower is available to condense the vapor from the second effect. For backward feed operation, calculate the
(a) steam flow rate required.
(b) steam economy.
(c) area per evaporator effect.
(d) cooling water flow rate required, assuming the water should be returned to the cooling tower no hotter than 125?F.
The overall heat transfer coefficients for the two effects are 350 and 450 Btu/h•ft2•?F, respectively.Answers:(a)21,400 lb/h(b)1.61(c)1960 ft2(d) 421,000 lb/h

Related Discussions:- heat transfer

WHEAT FLOUR, WHY WE CALCULATE GERM OIL ACIDITY OF WHEAT FLOUR?

WHY WE CALCULATE GERM OIL ACIDITY OF WHEAT FLOUR?

Chemisty, i need help finding information with the element sodium

i need help finding information with the element sodium

Explain the modelling for process and recipe, Explain Modelling for process...

Explain Modelling for process and recipe Generally, all problems that appear in food product design can be divided into mixture or process problems, with the latter having th

Mixture, which solution is formed when iodine solution ,copper sulphate...

which solution is formed when iodine solution ,copper sulphate and caustic soda are mixed?

The Structure.of the Atom, Relationship between nucleon number,proton numbe...

Relationship between nucleon number,proton number and the number of neutrons.

The bohr orbit radius for the hydrogen atom, The Bohr orbit radius for the ...

The Bohr orbit radius for the hydrogen atom (n=1)   is approximately  0.530 Å . The radius for the first excited state (n=2)  orbit is: (1) 0.13Å

Oxides of boron and aluminium, All the elements of Group 13 form trioxides ...

All the elements of Group 13 form trioxides also known as sesquioxides of the  formula, M 2 O 3 . Thallium forms stable Tl 2 0 also. The basic character of oxides increases down th

Chemical formula, copper reacts with oxygen to form two oxides es x and y ...

copper reacts with oxygen to form two oxides es x and y on analysis 1.535 g of x yielded 1.365 g of copper and 1.450 g of y yielded 1.160 g of copper(1) determine the chemical for

Explain objectives of product development and evaluation, Explain Objective...

Explain Objectives of Product development and evaluationexplain why is it necessary to develop new products describe what are the factors responsible for development of

What is nucleophile?, A nucleophile is a chemical species that donates an e...

A nucleophile is a chemical species that donates an electron pair to an electrophile to form a chemical bond in a reaction. All molecules or ions with a free pair of electrons or a

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd