User Account

All Pages

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

Aromaticity, compare the acidity between pyrole and pyrimidine

compare the acidity between pyrole and pyrimidine

Nature of light as a particle, Q. Illustrate Nature of light as a particle?...

Q. Illustrate Nature of light as a particle? Ans. You have seen that when excited electrons return to the ground state they release packets of energy, called photons. Photons

Legal test for accetone, what is the equation of legal test?

what is the equation of legal test?

Corresponding eigenvalue. , Show that wavefunction ψ1(x) = (2/L) 1/2 sin(πx...

Show that wavefunction ψ1(x) = (2/L) 1/2 sin(πx/L) of a particle in a box is an eigenfunction of  the operator d 2 /dx 2 and also calculate the corresponding eigenvalue.

Chemistry in our life, about occurence,properties of the following metal co...

about occurence,properties of the following metal copper.gold,mercury

Emf of cell, Real life example on ph determination and Ksp

Real life example on ph determination and Ksp

Double titration, how to determine the strength ofpotassium dichromate with...

how to determine the strength ofpotassium dichromate withFAS and N-phenyl anthranilic acid as an internal indicator

Inorganic, Ask question #Msend your questions inimum 100 words accepted#

Ask question #Msend your questions inimum 100 words accepted#

How is potassium dichromate prepared, (a) Starting from a sample of chromat...

(a) Starting from a sample of chromate ore, how is potassium dichromate prepared? Explain all the steps included with chemical equations. (b) Write the balanced chemical equatio

Carbon, CARBON, SILICON AND GERMANIUM With the valence electron configur...

CARBON, SILICON AND GERMANIUM With the valence electron configuration s 2 p 2 the nonmetallic group of elements 14 may form compounds with four tetrahedrally directed covalent

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +91-977-207-8620

Phone: +91-977-207-8620

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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