1. (55 points) Answer the following questions about the steady state system shown below. (Don't worry...

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1. (55 points) Answer the following questions about the steady state system shown below. (Don't worry about starting from 1st Law - use common engineering assumptions.) a) Is it appropriate to use the ideal gas law for the air traveling through the heat exchanger [find Z]? b) Fill in the table of thermodynamic properties. c) What is the mass flow rate of the refrigerant? d) Draw p-v and T-v diagrams in the indicated spaces. e) Find the Work in at the pump. f) What kind of cycle might this be and why? g) What is the real cycle efficiency? What is the Carnot cycle efficiency? h) Is this cycle reversible, irreversible, or impossible? 1234 bar m^3/kg kJ/kg T V u kJ/kg h phase 16 80 6 p1 = 16 bar Pump Q = 125 kW Boiler T2 = 80C T = 57C = 6 bar p4= Saturated R-134a liquid Heat Exchanger (3) m air = 5 kg/s p = 1.5 kPa T = 22C Sat Liquid (Expansion Valve V V 1. (55 points) Answer the following questions about the steady state system shown below. (Don't worry about starting from 1st Law - use common engineering assumptions.) a) Is it appropriate to use the ideal gas law for the air traveling through the heat exchanger [find Z]? b) Fill in the table of thermodynamic properties. c) What is the mass flow rate of the refrigerant? d) Draw p-v and T-v diagrams in the indicated spaces. e) Find the Work in at the pump. f) What kind of cycle might this be and why? g) What is the real cycle efficiency? What is the Carnot cycle efficiency? h) Is this cycle reversible, irreversible, or impossible? 1234 bar m^3/kg kJ/kg T V u kJ/kg h phase 16 80 6 p1 = 16 bar Pump Q = 125 kW Boiler T2 = 80C T = 57C = 6 bar p4= Saturated R-134a liquid Heat Exchanger (3) m air = 5 kg/s p = 1.5 kPa T = 22C Sat Liquid (Expansion Valve V V