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

Show example of electromagnetic radiation, Q. Show example of electromagnet...

Q. Show example of electromagnetic radiation? When light associated with energy hv, such that D 0 . = hv, is passed through a solution of [Ti(H 2 0) 6 ] 3+, absorption of ligh

Small question, What is the pollution?

What is the pollution?

Ions in aqueous solution, IONS IN AQUEOUS SOLUTION Ionic models : ...

IONS IN AQUEOUS SOLUTION Ionic models : Ions are charged chemical substance. Positively charged ions are called cations as they travel to the cathode of an electrolytic c

Inorganic chemistry, Why is that Li is the only element in group 1A that re...

Why is that Li is the only element in group 1A that reacts with dinitrogen to a nitride

Electrovalent Bonds, number of electrons of cyanide

number of electrons of cyanide

#title. masking agents, .importance, role and examples of masking agents

.importance, role and examples of masking agents

zinc oxide through reduction with co, why zinc extracted from zinc oxide t...

why zinc extracted from zinc oxide through reduction with co? Ans) Reducing agent should have more negative ΔG value. In case of zinc oxide ,Zn has more negative ΔG value then CO

Avarat sarni, what is avarat sarni

what is avarat sarni

Filtration, why is filtration in soil and water a slow process and explain ...

why is filtration in soil and water a slow process and explain the colour change in the filtrate

#Equivalent weight, #how do i know the factor of a compound when getting it...

#how do i know the factor of a compound when getting its equivalent weight?

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