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

What do you eman by scientific research, Q. What do you eman by Scientific ...

Q. What do you eman by Scientific Research? Pure research is prepared to gain knowledge for the sake of knowledge itself. Molina as well as Rowland's research on the behavior

Empirical formula, define it

define it

Levelling effect, what is definaion of leveling effect

what is definaion of leveling effect

Transition elements, fe is a non stoichiometric compound

fe is a non stoichiometric compound

Formation and stabilisation of beta-sheets in proteins, What aspects of ami...

What aspects of amino acid structure are involved in the formation and stabilisation of beta-sheets in proteins? Start with a paragraph that describes important basic informatio

Trihydric alcohol, What are trihydric alcohols? What are their preparation ...

What are trihydric alcohols? What are their preparation methods? What are their physical properties?

Velocity constant, comprision between velocity constant constant

comprision between velocity constant constant

#tstereochemisty, what is the difference between mirror image and optical i...

what is the difference between mirror image and optical isomerism?

Nodes of the original 2p orbitals, Both of the MOs have the nodes of the or...

Both of the MOs have the nodes of the original 2p orbitals, which merge into a one node because the nodal plane is common to both orbitals. The antibonding MO has in addition a

Solubility, A mixture is prepared by adding 25.0 mL of 0.185 M Na3PO4 to 34...

A mixture is prepared by adding 25.0 mL of 0.185 M Na3PO4 to 34.0 mL of 0.140 M Ca(NO3)2. (a) What mass, in grams, of calcium phosphate will be formed? What will be the concentrati

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