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

WATER TREATMENT, WHY PHOSPHATE CONDITIONING IS WOKABLE AT ALL VALUE OF PRES...

WHY PHOSPHATE CONDITIONING IS WOKABLE AT ALL VALUE OF PRESSURE?

Characteristics of d block elements with their expla, Ask qustion #Minimum ...

Ask qustion #Minimum 100 words accepted#

Ormeloxifene or centchroman - drugs and medicines, Ormeloxifene or Centchro...

Ormeloxifene or Centchroman Ormeloxifene (Centchroman, Saheli) has as well been developed and tested at the Central Drug Research Institute, Lucknow as a doing well anti fertil

Assignment, The tallest living man today, as recorded, is Allam Chamna of P...

The tallest living man today, as recorded, is Allam Chamna of Pakistan. He is 8 feet and 3 inches tall. What is his height in meter?

the density of cesium chloride, Determine the density of cesium chloride w...

Determine the density of cesium chloride which crystallises in bcc type structure with the edge length 412.1 pm.The atomic masses of Cs & Cl are 133 & 35.5 respectively.   Solution

PHOTOCHEMISTRY, PHOTO CHEMICAL COMBINATION OF HYDROGEN&IODINE

PHOTO CHEMICAL COMBINATION OF HYDROGEN&IODINE

Write cell reaction and calculate thermodynamic equilibrium, The equilibriu...

The equilibrium cell potential of the galvanic cell Pt | H 2 (g, f =1 bar) HCl (aq, 0.500mol kg -1 ) | Cl 2 (g, f =1 bar) | Pt is found to be E cell, eq = 1.410V at 298.15

Surface tension, assignment

assignment

Afbau principle, why exception is seen in lanthanoids

why exception is seen in lanthanoids

Vsepr :epr principles, Stereochemical arrangement has an issue whenever an ...

Stereochemical arrangement has an issue whenever an atom is bonded to two or more others. Thus triatomic substance AB2 can be bent or linear. It is observed that when a central ato

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