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

Physical properties of cinnamic acid, Physical Properties of Cinnamic Acid ...

Physical Properties of Cinnamic Acid (a) Cinnamic Acid is a white crystalline solid and its melting point 133° C . (b) Cinnamic Acid is sparingly soluble in water. (c) Ci

Stoichiometry.., wht is the difference between molar mass & molecular mass?...

wht is the difference between molar mass & molecular mass?

S-block elements, why lithium and breyllium markedly differ from other memb...

why lithium and breyllium markedly differ from other members of theit respective group?

What is the electrometallurgy, Q. What is the Electrometallurgy? The ab...

Q. What is the Electrometallurgy? The above two metallurgical processes, namely pyrometallurgy and hydrometallurgy can be used in the extraction of a fairly large number of met

The compound in which cation is isoelectronic with anion is, The compound i...

The compound in which cation is isoelectronic with anion is : (1) NaCl                (2) CsF       (3) NaI                               (4) K 2 S Ans: K 2 S

Protein, Protein classification on the basis of size

Protein classification on the basis of size

Geometrical or cis-trans isomerism, Geometrical or cis-trans isomerism     ...

Geometrical or cis-trans isomerism     The compounds that have similar molecular formula but differ in the relative spatial arrangement of atoms or groups in space are termed a

Electronic configuration and position in periodic table, Q. Electronic Conf...

Q. Electronic Configuration and Position in Periodic Table? The outstanding feature of the actinide and lanthanide elements is the great similarity in chemical and physical pro

Hazards, What are the examples of radiation hazards

What are the examples of radiation hazards

Bayer''s sttains theory, What is bayer''s sttains theory

What is bayer''s sttains theory

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