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

Benzaldehyde, what is perkin reaction?

what is perkin reaction?

What are hormones, What are hormones? State the function of the following h...

What are hormones? State the function of the following hormones: (a) Testosterone (b) Oxytocin

Detemine energy of atomic orbitals, Energy of atomic orbitals in a particul...

Energy of atomic orbitals in a particular shell is in the order: (1) s (2) s> p > d > f        (3) p (4)  f > d > s >p Ans:  s

Determing least energy, Which of the following has the least energy: (1...

Which of the following has the least energy: (1) 2p                    (2)  3p            (3) 2s                             (4) 4d Ans: 2s

Thermodynamic properties, Thermodynamic properties: Salts dissolve prod...

Thermodynamic properties: Salts dissolve producing both cations and anions. It means that it is impossible to measure thermodynamic data for individual ion type. The solvation

Isomers, how to find it

how to find it

Explain toluene, Explain Toluene Toluene has added stability associate...

Explain Toluene Toluene has added stability associated with aromaticity; compound A, although conjugated, is not aromatic. Because any equilibrium favours the more stable comp

Dimensional analysis, The density of gold is 19.30g/ml how much volume of g...

The density of gold is 19.30g/ml how much volume of gold will have a mass of 34.5kg ion..

QUANTUM CHEMISTRY, WHAT IS MEANT BY QUANTUM?

WHAT IS MEANT BY QUANTUM?

Uses of benzaldehyde - aldehydes and ketones, Uses of Benzaldehyde - Aldehy...

Uses of Benzaldehyde - Aldehydes and Ketones Benzaldehyde is used, (a) In perfumery (d) In manufacture of dyes (c) In preparation of benzoic acid, cinnamic acid, cinna

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