Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Please answer legibly. Heat and Mass Transfer Use all the necessary formulas in solving this problem. A triple-effect forced-circulation evaporator is to be fed with

Please answer legibly.

Heat and Mass Transfer

Use all the necessary formulas in solving this problem.

image text in transcribed

A triple-effect forced-circulation evaporator is to be fed with 20,000lb/h of 30%NaOH solution at a temperature 90F. The concentrated liquor is to be 60%NaOH solution. Saturated steam at 20.7lbf/in2 gauge is to be used, and the condensing temperature of vapor from the third effect is to be 100F. The feed order is II,III,I. Radiation and undercooling of condensate may be neglected. Estimated overall coefficients (BTU/ft 2hF ) corrected for boiling-point elevation are given below. Calculate (a) the heating surface requirec in each effect, assuming equal surfaces in each, (b) the steam consumption, (c) the steam economy

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Principles and Modern Applications of Mass Transfer Operations

Authors: Jaime Benitez

2nd edition

470181788, 470181782, 978-1-119-0427, 978-0470181782

More Books

Students also viewed these Chemical Engineering questions

Question

14.5 Describe how accidents at work can be prevented.

Answered: 1 week ago