Can someone please solve the following problem showing every step clearly and th

Question

Can someone please solve the following problem showing every step clearly and the solutions so that it is easy for me to follow? I will award all of the points to the correct answer with the most thorough work. Thanks!!!

An adiabatic R-22 compressor has an inlet state of 4 bar 5°C (hin 248.6k/kg; sin 9411 k/kg: K) and an outlet pressure of 20 bar. The isentropic compressor efficiency is 82.3% a) Find the exit temperature of an isentropic (ideal) compressor from the same inlet state tothe same exit pressure. (USENEARESTTABLE VALUES) b) Find the exit t of the specified compressor. (USE NEARES TT VALUES emperature ABLE c) Find the power required to compress 1.2kg/s of refrigerant in the actual compressor. (Sign convention) d) Find the rate of entropy production for the flow in part c

Explanation / Answer

a) Ideal isoenteopic compressor doesn't increase the entropy.

s will remain constant = .9411kj/kgK

Outlet temperate will be the temperature at which pressure is 20 bar and s=.9411 which can be found out from the table.

From table we see that entropy is in between the entropies in gaseous and liquid phase.

Exit temperature is the condensation temperature = 51.27

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