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

Borazine, define borazine

define borazine

Project, preparation of soyabin milk

preparation of soyabin milk

Invertase, the application of intervase

the application of intervase

Inorganic chemistry, is (NH4)2S react with HNO3?

is (NH4)2S react with HNO3?

Atomic weight of an element lightest element and protons, If the atomic wei...

If the atomic weight of an element is 23 times that of the lightest element and it has 11 protons, then it contains : (1)11 protons, 23 neutrons, 11 electrons  (2)11 protons,

Uncertainty in the position of a moving bullet of mass, The uncertainty in ...

The uncertainty in the position of a moving bullet of mass 10 gm is 10 -5 m  . Calculate the uncertainty in its velocity: (1) 5.2 x 10 -28 / sec                         (

S block, #bonding in KO2question..

#bonding in KO2question..

What is the uses of potochmistry, ?????? # ..

?????? # ..

Nitration of naphthalene, What is the chemistry of nitration of naphthalene...

What is the chemistry of nitration of naphthalene?

Heat Transfer Problems, 200 g of water at 30 degrees C is mixed with 20 g o...

200 g of water at 30 degrees C is mixed with 20 g of silver at 350 degrees C, what''s the final temp?

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