The figure below provides steady-state data for a throttling valve in series with a heat exchanger. Saturated liquid Refrigerant 134a enters the valve at a pressure of 9 bar and is throttled to a pressure of p2 2 bar. The refrigerant then enters the heat exchanger, exiting at a temperature of 10°C with no significant decrease in pressure. In a separate stream, liquid water at 1 bar enters the heat exchanger at a temperature of 25°C with a mass flow rate of 3 kg/s and exits at 1 bar as liquid at a temperature of 15°C. Stray heat transfer and kinetic and potential energy effects can be ignored.
Determine the mass flow rate of the refrigerant, in kg/s. (Tolerance +/-5%)
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The figure below provides steady-state data for a throttling valve in series with a heat exchanger.
Figure P4.96 provides steady-state data for a throttling valve in series with a heat exchanger
4.96 Figure P4.96 provides steady-state data for a throttling valve in series with a heat exchanger. Saturated liquid Refrigerant 134a enters the valve at a pressure of 9 bar and is throttled to a pressure of 2 bar. The refrigerant then enters the heat exchanger, exiting at a temperature of 10℃ with no significant decrease in pressure. In a separate stream, liquid water at 1 bar enters the heat exchanger at a temperature of 25℃ with a mass flow rate of...
Figure provides steady-state data for a throttling valve in series with a heat exchanger. Saturated liquid...
Figure provides steady-state data
for a throttling valve in series with a heat exchanger. Saturated
liquid Refrigerant 134a enters the valve at T1 = 36 degrees Celsius
with a mass flow rate of 0.26 kg/s and is throttled to T2 = -8
degrees Celsius. The refrigerant then enters the heat exchanger,
exiting as saturated vapor with no significant decrease in
pressure. In a separate stream, liquid water enters the heat
exchanger at T4 = 20 degrees Celsius and exits as...
Problem 4.067 SI The figure below provides steady-state data for a throttling valve in series with...
Problem 4.067 SI The figure below provides steady-state data for a throttling valve in series with a heat exchanger. Saturated liquid Refrigerant 134a enters the valve at a pressure of 9 bar and is throttled to a pressure of P = 2 bar. The refrigerant then enters the heat exchanger, exiting at a temperature of 10°C with no significant decrease in pressure. In a separate stream, liquid water at 1 bar enters the heat exchanger at a temperature of 25°C...
Thermodynamics: Valve and Heat Exchange 4.95
Figure P4.95 provides steady-state data for a throttling valve in series with a heat exchanger. Saturated liquid Refrigerant134a enters the valve atT1=36 degrees C with a mass flow rate of 0.26 kg/s and is throttled to T2 = -8degrees C. The refrigerant then enters the heat exchanger, exiting as saturated vapor with no significant decrease in pressure. In a separate stream, liquid water enters the heat exchanger at T4 = 20 degrees C and exits as a liquid atT5= 10...
LLLS Moran, Shapiro, Boettner, Bailey, Fundamentals of Engineering Thermodynamics, 9e Help I n Assignment NEXT URCES...
LLLS Moran, Shapiro, Boettner, Bailey, Fundamentals of Engineering Thermodynamics, 9e Help I n Assignment NEXT URCES Problem 4.067 S The figure below provides steady-state data for a throttling valve in series with a heat exchanger. Saturated liquid Refrigerant 134a enters the valve at a pressure of 9 bar and is throttled to a pressure of p2-3 bar. The refrigerant then enters the heat exchanger, exiting at a temperature of 10°C with no significant decrease in pressure. In a separate stream,...
1. (100 points) A counterflow heat exchanger operates at steady state to transfer heat between air...
1. (100 points) A counterflow heat exchanger operates at steady state to transfer heat between air and refrigerant 134a. The air enters at 22°C and 0.1 MPa, then exits at 7°C. The R-134a enters at 0°C at a rate of 30 kg/h by mass, and is a saturated vapor upon exit. Both streams experience no notable change in pressure. (a) Determine the heat transfer rate and associated rate of exergy transfer for the R-134a stream in kJ/h. (b) Evaluate the...
Steam enters a counterflow heat exchanger operating at steady state at 0.07 MPa with a quality...
Steam enters a counterflow heat exchanger operating at steady state at 0.07 MPa with a quality of 0.9 and exits at the same pressure as saturated liquid. The steam mass flow rate is 1.3 kg/min. A separate stream of air with a mass flow rate of 100 kg/min enters at 30oC and exits at 60oC. The ideal gas model with cp = 1.005 kJ/kg·K can be assumed for air. Kinetic and potential energy effects are negligible. Determine the temperature of...
In a produce chilling system, air is cooled by being passed over a heat exchanger coil througlh w...
Please use EES only.
In a produce chilling system, air is cooled by being passed over a heat exchanger coil througlh which R-134a flows steadily at a rate of 15 lbm/min. Prior to entering the heat exchanger coil, the refrigerant passes through a throttling valve as shown in the figure below. The R-134a enters the valve as a saturated liquid at high pressure (which will be varied) and leaves at 35 psia. The refrigerant leaves the heat exchanger coil as...
Condenser Compressor An ideal vapor-compression refrigeration cycle is modified to include a counter-flow heat exchanger as...
Condenser Compressor An ideal vapor-compression refrigeration cycle is modified to include a counter-flow heat exchanger as shown. Refrigerant 134a leaves the evaporator as saturated vapor at 0.10 MPa and is heated at constant pressure to 20°C before entering the compressor. Following isentropic compression to 1.4 MPa, the refrigerant passes through the condenser and exits at 45°C and 1.4 MPa. The liquid then passes through the heat exchanger and enters the expansion valve at 1.4 MPa. The mass flow rate of...
Problem 3 Steam enters a heat exchanger at 0.1 bar with a quality of 0.95 and...
Problem 3 Steam enters a heat exchanger at 0.1 bar with a quality of 0.95 and condensate exits at 0.1 bar and 45'C. Cooling water enters the heat exchanger in a separate stream as a liquid at 20'C and exits as a liquid at 35 C with no changes in pressure. Heat transfer from the outside of the heat exchanger and changes in the kinetic and potential energies of the flowing streams can be ignored. For steady state operation, (a)...
Figure provides steady-state data
for a throttling valve in series with a heat exchanger. Saturated
liquid Refrigerant 134a enters the valve at T1 = 36 degrees Celsius
with a mass flow rate of 0.26 kg/s and is throttled to T2 = -8
degrees Celsius. The refrigerant then enters the heat exchanger,
exiting as saturated vapor with no significant decrease in
pressure. In a separate stream, liquid water enters the heat
exchanger at T4 = 20 degrees Celsius and exits as...
Problem 4.067 SI The figure below provides steady-state data for a throttling valve in series with a heat exchanger. Saturated liquid Refrigerant 134a enters the valve at a pressure of 9 bar and is throttled to a pressure of P = 2 bar. The refrigerant then enters the heat exchanger, exiting at a temperature of 10°C with no significant decrease in pressure. In a separate stream, liquid water at 1 bar enters the heat exchanger at a temperature of 25°C...
LLLS Moran, Shapiro, Boettner, Bailey, Fundamentals of Engineering Thermodynamics, 9e Help I n Assignment NEXT URCES Problem 4.067 S The figure below provides steady-state data for a throttling valve in series with a heat exchanger. Saturated liquid Refrigerant 134a enters the valve at a pressure of 9 bar and is throttled to a pressure of p2-3 bar. The refrigerant then enters the heat exchanger, exiting at a temperature of 10°C with no significant decrease in pressure. In a separate stream,...
1. (100 points) A counterflow heat exchanger operates at steady state to transfer heat between air and refrigerant 134a. The air enters at 22°C and 0.1 MPa, then exits at 7°C. The R-134a enters at 0°C at a rate of 30 kg/h by mass, and is a saturated vapor upon exit. Both streams experience no notable change in pressure. (a) Determine the heat transfer rate and associated rate of exergy transfer for the R-134a stream in kJ/h. (b) Evaluate the...
Please use EES only.
In a produce chilling system, air is cooled by being passed over a heat exchanger coil througlh which R-134a flows steadily at a rate of 15 lbm/min. Prior to entering the heat exchanger coil, the refrigerant passes through a throttling valve as shown in the figure below. The R-134a enters the valve as a saturated liquid at high pressure (which will be varied) and leaves at 35 psia. The refrigerant leaves the heat exchanger coil as...
Condenser Compressor An ideal vapor-compression refrigeration cycle is modified to include a counter-flow heat exchanger as shown. Refrigerant 134a leaves the evaporator as saturated vapor at 0.10 MPa and is heated at constant pressure to 20°C before entering the compressor. Following isentropic compression to 1.4 MPa, the refrigerant passes through the condenser and exits at 45°C and 1.4 MPa. The liquid then passes through the heat exchanger and enters the expansion valve at 1.4 MPa. The mass flow rate of...
Problem 3 Steam enters a heat exchanger at 0.1 bar with a quality of 0.95 and condensate exits at 0.1 bar and 45'C. Cooling water enters the heat exchanger in a separate stream as a liquid at 20'C and exits as a liquid at 35 C with no changes in pressure. Heat transfer from the outside of the heat exchanger and changes in the kinetic and potential energies of the flowing streams can be ignored. For steady state operation, (a)...
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