Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Q 2 ) A chemical engineer works at a petrochemical company in Turkey. In this company, methanol synthesis by catalytic dehydrogenation of carbon dioxide was

Q2) A chemical engineer works at a petrochemical company in Turkey. In this company, methanol
synthesis by catalytic dehydrogenation of carbon dioxide was produced by using flue gas as a
feedstock. A chemical engineer's demand is that she/he will build an adiabatic cooling tower for
utilization of wastewater which comes from the condensers in the plant. She/He wants a help from
you at the calculation parts and answer the following questions.
The stream of cooled water will be returned to the condensers from the cooling tower
with the same flowrate. Some data needed are as follows:
Exiting wastewater stream from condensers at 50C enters a cooling tower with a mass
flowrate of 20,000kgh. Make-up water is added from water reservoir at 25C. Atmospheric air
enters the cooling tower at 17C of wet bulb temperature with 50% relative humidity. The
volumetric flowrate of air into the cooling tower is 26,190m3h. Desired exit conditions of air at
top section is 60% relative humidity; and the exit dry bulb temperature of air should not be more
than 16C of the inlet dry bulb temperature of air. Additionally, atmospheric pressure is 1atm.
a) Plot the flow diagram of the cooling tower process. (10 pt.)
b) Write mass and energy balances at steady state conditions (state your assumptions).
(20 pt.)
c) Determine the temperature of the cooled liquid water exiting cooling tower. (40 pt.)
d) Find the efficiency of the tower and state five factors that affect the cooling tower
efficiency. (10 pt.)
Table 1: Specific enthalpy values of liquid water at 1atm. SOLVE BY HAND AND DO NOT COPY PLEASE!
image text in transcribed

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