A heat exchanger employs 1.5kg/s of a liquid whose specific heat is 5kJ/(kg K) at 15o C to cool 5kg/s of air from 120o C to 25o C. The air pressure during this cooling process remains constant at 100kPa. The air leaving the heat exchanger enters an isentropic compressor where it is compressed to 1000kPa. Find the temperature of the air leaving the compressor. If the liquid leaves the heat exchanger at 20o C, how much is the external heat transfer rate to the ambient from the heat exchanger? What is the power required to drive the compressor? What is the irreversibility rate in the heat exchanger? Assume the ambient temperature to be 25o C and that air is an ideal gas with constant specific heats and use a value of 1.004kJ/(kg K) for Cp, o and 0.717kJ/(kg K) for Cv

1)  Find the temperature of the air leaving the compressor = 575.35K  or 302.75°C

2) What is the power required to drive the compressor? = 1392.286KW

3) What is the irreversibility rate in the heat exchanger? = 63.915KW

Explanation:

check the attached files below.

answer

procedural programming, object-oriented programming

explanation

procedural programming is a type of computer programming language that specifies a series of well structured steps and procedures   within its development period of time. it contains a systematic order of statements, functions and commands to complete a computational task or program. it is centered on creating procedures. while object oriented programming is a programming language that is centered on creating objects rather that actions and data rather than logic.. it has four principles which are inheritance, polymorphism, abstraction and encapsulation