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

METAL COMPLEXES, Structure and IUPAC name of K3[Al(C2O4)3]

Structure and IUPAC name of K3[Al(C2O4)3]

What is the dipole moment of chloro-octane, What is the dipole moment of ch...

What is the dipole moment of chloro-octane? Ans) There are many forms of the molecule "chloro-octane." This is due to the chlorine atom can be attached to the octane chain in va

What are factorial experiment studies, Q. What are factorial experiment stu...

Q. What are factorial experiment studies? Factorial experiment studies determine the effect of some independent variables on food quality indices through varying two or more in

Hydrogyn, does hydrogyn react with magnesium

does hydrogyn react with magnesium

CALORIMETRY, when a 0.800g sample of CaCl2 is dissolved in 9.85g of water i...

when a 0.800g sample of CaCl2 is dissolved in 9.85g of water in a microscale calorimeter the temperature of the solution rose from 23.4 degrees celcius to 35.8 degrees celcius.calc

Oxidizing and reducing agent, ionic equation for potassium dichromate and p...

ionic equation for potassium dichromate and potassium manganate

Difference between thermoplastic and thermosetting polymers, Difference bet...

Difference between thermoplastic and thermosetting polymers Thermoplastic polymers Thermosetting polymers (1) Thermoplastic polymers

Molecular formula of gaseous hydrocarbons or eudiometry, Molecular formula ...

Molecular formula of gaseous hydrocarbons   (Eudiometry) Eudiometry is a direct method for calculation of molecular formula of gaseous hydrocarbons without ascertaining the pe

Write Your Message!

Captcha
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!

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