Homework Answers
Add Answer to:
1 MPa Isentropic Efficiency of a Compressor Refrigerant-134a enters an adiabatic compressor as a saturated vapor...
6. Refrigerant-134a enters an adiabatic compressor as saturated vapor at 100 kPa at a rate of...
6. Refrigerant-134a enters an adiabatic compressor as saturated vapor at 100 kPa at a rate of 0.7 m3/min and exits at 1 MPa pressure. If the isentropic efficiency of the compressor is 87%, determine (a) the temperature of the refrigerant at the exit of the compressor, (b) the power input (in kW), and (c) the rate of entropy generation during this process.
Refrigerant-134a is compressed by an adiabatic compressor from the saturated vapor state at 0.12 MPa to...
Refrigerant-134a is compressed by an adiabatic compressor from the saturated vapor state at 0.12 MPa to 1.2 MPa and 70 C at a rate of 0.108 kg/s. The power input to the compressor is 6.85 kW 59.4 kW 6.42 kW 63.4 kW 587 kW
1. Refrigerant 134a enters the compressor of a refrigerator as superheated vapor at 0.20 MPa and...
1. Refrigerant 134a enters the compressor of a refrigerator as superheated vapor at 0.20 MPa and -10 °C at a rate of 0.07 kg/s, and it leaves at 1.2 MPa and 70 °C. The refrigerant is cooled in the condenser to 44 °C and 1.130 MPa and it is throttled to 0.20 MPa. Disregarding heat transfer and pressure drop in the connecting lines between the components, show the cycle on a T-s diagram with respect to the saturation line. Determine...
Problem #2 Refrigerant 134a enters an adiabatic compressor at 0.1 MPa and -20 oC while it...
Problem #2 Refrigerant 134a enters an adiabatic compressor at 0.1 MPa and -20 oC while it leaves at 1 MPa and 110 oC. The mass flow rate of the compressor is 0.3 kg/s. Determine: a) The power input to the compressor, in kW. b) The volume flow rate of the refrigerant at the compressor inlet.
3) A vapor-compression refrigerator uses refrigerant-134a. Superheated vapor enters the compressor at 100 kPa and -20°...
3) A vapor-compression refrigerator uses refrigerant-134a. Superheated vapor enters the compressor at 100 kPa and -20° C, and exits at 1 MPa and 60° C. The refrigerant is cooled to 35° C in the condenser and then expands back to 100 kPa through an expansion valve. Neglect pressure losses within the condenser and evaporator. The refrigerant flow rate is 0.10 kg/s. Calculate the following a) the rate of heat removal from the cooled space, in kw, b) the rate of...
Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.14 MPa and -10°C at a rate of 0.124...
Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.14 MPa and -10°C at a rate of 0.124 kg/s, and it leaves at 0.7 MPa and 50°C. The refrigerant is cooled in the condenser to 24°C and 0.65 MPa, and it is throttled to 0.15 MPa. Disregarding any heat transfer and pressure drops in the connecting lines between the components, determine (a) the rate of heat removal from the refrigerated space and the power input to the compressor...
The refrigerant R134a flows through an adiabatic compressor in stationary operation. The volume at the inlet...
The refrigerant R134a flows through an adiabatic compressor in stationary operation. The volume at the inlet is 500 liters / min. At the inlet, the refrigerant is at 0 ° C and 200kPa. At the outlet, the pressure is 1MPa. The compressor has an isentropic efficiency of 85%. The environment of the compressor is at 25 ° C and 100kPa. a) Calculate the specific enthalpy at the compressor outlet (in kJ / kg). Draw a Ts diagram of the process...
An adiabatic compressor with an isentropic efficiency of 73% is used in a refrigeration unit to...
An adiabatic compressor with an isentropic efficiency of 73% is used in a refrigeration unit to compress saturated R-134a vapor at 10° C to 1000 kPa Determine the required power of the compressor to compress 0.84 kg/s.
6-17 Refrigerant-134a enters the compressor of a refrig- cration system as saturated vapor at 0.14 MPa...
6-17 Refrigerant-134a enters the compressor of a refrig- cration system as saturated vapor at 0.14 MPa and leaves as superheated vapor at 0.8 MPa and 60°C at a rate of 0.06 kg/s. Determine the rates of energy transfers by mass into and out of the compressor. Assume the kinetic and potential cncrgics to be negligible.
A two-stage compression refrigeration system with an adiabatic liquid-vapor separation unit uses refrigerant-134a as working fluid....
A two-stage compression refrigeration system with an adiabatic liquid-vapor separation unit uses refrigerant-134a as working fluid. The system operates the evaporator at 0.4 MPa, the condenser at 1.6 MPa, and the separator at 0.8 MPa. The compressors use 25 kW of power. Given that the refrigerant is saturated liquid at the inlet of each expansion valve and saturated vapor at the inlet of each compressor, and the compressors are isentropic: (0) show the process on a T-s diagram; ) calculate...
6. Refrigerant-134a enters an adiabatic compressor as saturated vapor at 100 kPa at a rate of 0.7 m3/min and exits at 1 MPa pressure. If the isentropic efficiency of the compressor is 87%, determine (a) the temperature of the refrigerant at the exit of the compressor, (b) the power input (in kW), and (c) the rate of entropy generation during this process.
Refrigerant-134a is compressed by an adiabatic compressor from the saturated vapor state at 0.12 MPa to 1.2 MPa and 70 C at a rate of 0.108 kg/s. The power input to the compressor is 6.85 kW 59.4 kW 6.42 kW 63.4 kW 587 kW
1. Refrigerant 134a enters the compressor of a refrigerator as superheated vapor at 0.20 MPa and -10 °C at a rate of 0.07 kg/s, and it leaves at 1.2 MPa and 70 °C. The refrigerant is cooled in the condenser to 44 °C and 1.130 MPa and it is throttled to 0.20 MPa. Disregarding heat transfer and pressure drop in the connecting lines between the components, show the cycle on a T-s diagram with respect to the saturation line. Determine...
3) A vapor-compression refrigerator uses refrigerant-134a. Superheated vapor enters the compressor at 100 kPa and -20° C, and exits at 1 MPa and 60° C. The refrigerant is cooled to 35° C in the condenser and then expands back to 100 kPa through an expansion valve. Neglect pressure losses within the condenser and evaporator. The refrigerant flow rate is 0.10 kg/s. Calculate the following a) the rate of heat removal from the cooled space, in kw, b) the rate of...
Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.14 MPa and -10°C at a rate of 0.124 kg/s, and it leaves at 0.7 MPa and 50°C. The refrigerant is cooled in the condenser to 24°C and 0.65 MPa, and it is throttled to 0.15 MPa. Disregarding any heat transfer and pressure drops in the connecting lines between the components, determine (a) the rate of heat removal from the refrigerated space and the power input to the compressor...
6-17 Refrigerant-134a enters the compressor of a refrig- cration system as saturated vapor at 0.14 MPa and leaves as superheated vapor at 0.8 MPa and 60°C at a rate of 0.06 kg/s. Determine the rates of energy transfers by mass into and out of the compressor. Assume the kinetic and potential cncrgics to be negligible.
A two-stage compression refrigeration system with an adiabatic liquid-vapor separation unit uses refrigerant-134a as working fluid. The system operates the evaporator at 0.4 MPa, the condenser at 1.6 MPa, and the separator at 0.8 MPa. The compressors use 25 kW of power. Given that the refrigerant is saturated liquid at the inlet of each expansion valve and saturated vapor at the inlet of each compressor, and the compressors are isentropic: (0) show the process on a T-s diagram; ) calculate...
Most questions answered within 3 hours.
-
Of all the different weapons discussed in this chapter that make
up CBRNE,
Which group do...
asked 13 minutes ago -
Floating Point Representation
Consider a computer that stores information using 10 bits words.
The first bit...
asked 6 minutes ago -
Draw the molecular orbital diagram for O2-
(oxygen molecule with a negative charge).
asked 15 minutes ago -
Given the following JavaScript code, what will be displayed on
the web page?
var x =...
asked 23 minutes ago -
The cynics, skeptics, epicureans, & stoics were most
philosophies that dealt with:
a. the physical...
asked 25 minutes ago -
The hydronium ion concentration of an aqueous solution of 0.333
M trimethylamine (a weak base with...
asked 27 minutes ago -
A buffer is prepared by partially titrating 50.00 mL of 0.964 M
benzoic acid using 0,100...
asked 30 minutes ago -
For a Generalized Additive Model, what does a large
edf(empirical distribution function) value mean?
Thank you...
asked 42 minutes ago -
questions for Biology lab
An agarose gel electrophoresis assay performed with high quality
will NOT have...
asked 47 minutes ago -
A spring with spring constant 400 N/m is anchored at the bottom
of a frictionless 30^∘...
asked 50 minutes ago -
The half-life of 238U is 4.5×109 yr.
Find the number of disintegrations per hour emitted by...
asked 59 minutes ago -
y[n] = x[n] - 3x[n - 1] + 4x[n - 2]
What is the transfer function...
asked 1 hour ago