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1. Steam enters a nozzle at 400°C and 800 kPa with a velocity of 10 m/s, and leaves at 375°C and 400 kPa while losing heat at a rate of 25 kW. For an inlet area of 800 cm², determine the velocity and the volume flow rate of the steam at the nozzle exit. 400°C 800 kPa 10 m/s Steam 375°C 400 kPa 2. Refrigerant-134a at 1 MPa and 90°C is to be cooled to 1 MPa and 30°C in a condenser by air. The air enters at 100 kPa and 27°C with a volume flow rate of 600 m$^3$/min and leaves at 95 kPa and 60°C. Determine the mass flow rate of the refrigerant. Air $V_3$ = 600 m$^3$/min $P_3$ = 100 kPa $T_3$ = 27°C $P_1$ = 1 MPa R-134a $T_1$ = 90°C $P_4$ = 95 kPa $T_4$ = 60°C $P_2$ = 1 MPa $T_2$ = 30°C

          1. Steam enters a nozzle at 400°C and 800 kPa with a velocity of 10 m/s, and leaves at 375°C and
400 kPa while losing heat at a rate of 25 kW. For an inlet area of 800 cm², determine the
velocity and the volume flow rate of the steam at the nozzle exit.
400°C
800 kPa
10 m/s
Steam
375°C
400 kPa
2. Refrigerant-134a at 1 MPa and 90°C is to be cooled to 1 MPa and 30°C in a condenser by air.
The air enters at 100 kPa and 27°C with a volume flow rate of 600 m$^3$/min and leaves at 95
kPa and 60°C. Determine the mass flow rate of the refrigerant.
Air
$V_3$ = 600 m$^3$/min
$P_3$ = 100 kPa
$T_3$ = 27°C
$P_1$ = 1 MPa
R-134a
$T_1$ = 90°C
$P_4$ = 95 kPa
$T_4$ = 60°C
$P_2$ = 1 MPa
$T_2$ = 30°C

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1. Steam enters a nozzle at 400°C and 800 kPa with a velocity of 10 m/s, and leaves at 375°C and
400 kPa while losing heat at a rate of 25 kW. For an inlet area of 800 cm², determine the
velocity and the volume flow rate of the steam at the nozzle exit.
400°C
800 kPa
10 m/s
Steam
375°C
400 kPa
2. Refrigerant-134a at 1 MPa and 90°C is to be cooled to 1 MPa and 30°C in a condenser by air.
The air enters at 100 kPa and 27°C with a volume flow rate of 600 m^3/min and leaves at 95
kPa and 60°C. Determine the mass flow rate of the refrigerant.
Air
V3 = 600 m^3/min
P3 = 100 kPa
T3 = 27°C
P1 = 1 MPa
R-134a
T1 = 90°C
P4 = 95 kPa
T4 = 60°C
P2 = 1 MPa
T2 = 30°C

Added by William D.

University Physics with Modern Physics

Hugh D. Young 14th Edition

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Solved by Expert Adi S

09/17/2023

Step 1

We can use the steam tables to find the specific enthalpy and specific volume at the given temperature and pressure. Show more…

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Write a Python code to solve the problem. You must utilize Sympy, Numpy and Pandas to solve the problem. All Thermodynamics tables must be converted into a .csv or .xlxs file to be read using Pandas. Input data can either be inserted using prompt or read from .csv or .xlsx file.please assist to write phyton code for thermodynamics problems , example given below input can be inserted by prompt or from csv file , answer will then saved in a csv file 1. Steam enters a nozzle at 400'C and 800 kPa with a velocity of 10 m/s, and leaves at 375C and 400 kPa while losing heat at a rate of 25 kW. For an inlet area of 800 cm2, determine the velocity and the volume flow rate of the steam at the nozzle exit. 400C 800 kPa 10 m/s 375C 400 kPa Steam 2. Refrigerant-134a at 1 MPa and 90'C is to be cooled to 1 MPa and 30'C in a condenser by air. The air enters at 100 kPa and 27C with a volume flow rate of 600 m3 /min and leaves at 95 kPa and 6o'c.Determine the mass flow rate of the refrigerant. Air V = 600 m3/min P=1O0 kPa T=27C R-134a P=1 MPa T=90C l P4=95 kPa T4=60C P= 1 MPa T=30C

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