Question: 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!
 Q2) A chemical engineer works at a petrochemical company in Turkey.

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