The following EES code solves the following problem: A valve is used to throttle steam flowing...

  

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The following EES code solves the following problem: A valve is used to throttle steam flowing at mass flow rate of 22 and velocity of 8.51 m/s from 8 MPa and 500°Cto 6 MPa and a velocity of 11.34 m/s. A 3% of the inlet stream energy is lost to surrounding as heat. Potential energy change is negligible. Based on the below code, answer the following questions by selecting the right answer: Linel Line2 Line3 density_in=1/volume(Water,T=T_in,P=P_in) (kg/m^3) Line4 Line5 Line6 Line7 Line8 Line9 Line 10 Linell Line 12 Line13 Line14 T_in=500 P_in=8 (kPa) Line 15 Line 16 V_in-8.51 (m/s) h_in- Water(enthalpy,T=T_in,P=P_in) V_out-11.34 (m/s) P_our-6000 (kPa) m_dot_in-m_dot_out m_dot_in=2; kg/s m_dot_in*h_in+Q_dot_in+W_dot_in= m_dot_out*h_out+Q_dot_out+W_dot_out Q_dot_in=0 W_dot_in=0 Q_dot_out-0 W_dot_out-0 density_out-1/volume(Water,T=T_out,h=h_in) (kg/m^3} T_out-temperature(Water,P-P_out,h-h_out) Line 17 x_out quality(Water,P-P_out,h-h_out) 1. The fluid used is: (a) Water (b) Steam (c) H₂O (d) All the above 2. The process is: (a) Adiabatic steady process (b) Unsteady process (c) Open unsteady process with mass out (d) Cycle (e) None of the above 3. The exit mass flow rate is: (a) 2 kg/s (b) m_dot_in (c) Pin Ain Vin (d) All of the above 4. Which line in the code will cause a syntax error: (a) Line3 and Line 15 (b) Line 2 and Line5 (c) Line9 (d) Line5 and Line9 (e) None of the above 5. Based on information provided in the problem statement which of the following represents an inaccurate coding information: (a) Lin2 (b) Line11 (c) Line11 and 13 (d) None of the above 6. The specific enthalpy during this process is: (a) Increasing (b) Decreasing (c) Constant (d) None of the above 7. The net heat transfer rate is: (a) Increased (b) Decreased (c) Zero (d) Constant 8. The net work rate is: (a) Increased (b) Decreased (c) Zero (d) Constant 9. The code line (m_dot_in*h_in+Q_dot_in+W_dot_in+m_dot_in*V_in^2/2 = m_dot_out*h_out+Q_dot_out+W_dot_out+m_dot_out*V_out^2/2) describes: (a) Energy Balance (b) Conservation of Energy (c) The 1" law of thermodynamics (d) All of the Above 10. Based on giving information, the coding will help in determining: (a) The specific enthalpy at outlet (b) The outlet temperature (c) The phase of the water at outlet (d) all of the above (e) none of the above The following EES code solves the following problem: A valve is used to throttle steam flowing at mass flow rate of 22 and velocity of 8.51 m/s from 8 MPa and 500°Cto 6 MPa and a velocity of 11.34 m/s. A 3% of the inlet stream energy is lost to surrounding as heat. Potential energy change is negligible. Based on the below code, answer the following questions by selecting the right answer: Linel Line2 Line3 density_in=1/volume(Water,T=T_in,P=P_in) (kg/m^3) Line4 Line5 Line6 Line7 Line8 Line9 Line 10 Linell Line 12 Line13 Line14 T_in=500 P_in=8 (kPa) Line 15 Line 16 V_in-8.51 (m/s) h_in- Water(enthalpy,T=T_in,P=P_in) V_out-11.34 (m/s) P_our-6000 (kPa) m_dot_in-m_dot_out m_dot_in=2; kg/s m_dot_in*h_in+Q_dot_in+W_dot_in= m_dot_out*h_out+Q_dot_out+W_dot_out Q_dot_in=0 W_dot_in=0 Q_dot_out-0 W_dot_out-0 density_out-1/volume(Water,T=T_out,h=h_in) (kg/m^3} T_out-temperature(Water,P-P_out,h-h_out) Line 17 x_out quality(Water,P-P_out,h-h_out) 1. The fluid used is: (a) Water (b) Steam (c) H₂O (d) All the above 2. The process is: (a) Adiabatic steady process (b) Unsteady process (c) Open unsteady process with mass out (d) Cycle (e) None of the above 3. The exit mass flow rate is: (a) 2 kg/s (b) m_dot_in (c) Pin Ain Vin (d) All of the above 4. Which line in the code will cause a syntax error: (a) Line3 and Line 15 (b) Line 2 and Line5 (c) Line9 (d) Line5 and Line9 (e) None of the above 5. Based on information provided in the problem statement which of the following represents an inaccurate coding information: (a) Lin2 (b) Line11 (c) Line11 and 13 (d) None of the above 6. The specific enthalpy during this process is: (a) Increasing (b) Decreasing (c) Constant (d) None of the above 7. The net heat transfer rate is: (a) Increased (b) Decreased (c) Zero (d) Constant 8. The net work rate is: (a) Increased (b) Decreased (c) Zero (d) Constant 9. The code line (m_dot_in*h_in+Q_dot_in+W_dot_in+m_dot_in*V_in^2/2 = m_dot_out*h_out+Q_dot_out+W_dot_out+m_dot_out*V_out^2/2) describes: (a) Energy Balance (b) Conservation of Energy (c) The 1" law of thermodynamics (d) All of the Above 10. Based on giving information, the coding will help in determining: (a) The specific enthalpy at outlet (b) The outlet temperature (c) The phase of the water at outlet (d) all of the above (e) none of the above

Answer rating: 100% (QA)

The detailed answer for the above question is provided below 1 The fluid used is a Water Explanation ... View the full answer