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

Polymers, applications of polymers in electrical and electronics

applications of polymers in electrical and electronics

Electrons present in all the p-orbitals, The total number of electrons pres...

The total number of electrons present in all the p-orbitals of bromine are: (1) Five          (2) Eighteen         (3) Seventeen           (4) Thirty five Ans: Seve

Organic chemistry, perkin ring clousre reaction

perkin ring clousre reaction

Explain multimolecular and macromolecular colloids, What is the difference ...

What is the difference among multimolecular and macromolecular colloids? Give one example of each type. How are associated colloids dissimilar from these two types of colloids?

Organic chemistry-electrometric effect, give one book name about electromat...

give one book name about electromatric effect?&author name?

Hydrogen, what is water gas and how is it prepared?

what is water gas and how is it prepared?

Show crystal field splitting in square planar complexes, Q. Show Crystal Fi...

Q. Show Crystal Field Splitting in Square Planar Complexes? In a d 1 or d 2 system the electrons will always go in the 'e' set of orbitals with the release of corresponding a

Nernst distribution law, limitations of distribution law

limitations of distribution law

Physical properties of acyl halides, Physical properties of Acyl Halides  ...

Physical properties of Acyl Halides  1. As much lower acyl chloride are mobile, colourless liquid while the higher members are coloured solids. 2. Acyl chloride has very pun

Difinition, what is chemistry

what is chemistry

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