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Question 7 5 pts The entropy of a system consisting of refrigerant-134a at 24°C is 0.45...
uestion 5 The specific volume of a system consisting of refrigerant-134a at 1.0 Mpa is 0.01...
uestion 5 The specific volume of a system consisting of refrigerant-134a at 1.0 Mpa is 0.01 m3kg. The quality of the R-134a is 12.6% 46 9 % 68 3 % e None of them 354% Moving to another question will save this response to 250000231 (manea) (identity verified).
A liquid-vapor mixture of refrigerant-134a is at -10°C with a quality of 40 percent. Determine the...
A liquid-vapor mixture of refrigerant-134a is at -10°C with a quality of 40 percent. Determine the value of the Gibbs function, in kJ/kg. when the two phases are in equilibrium. R-134a -10°C 0.4 kJ/kg kJ/kg
What is the enthalpy (kJ/kg) of refrigerant 134a which is at 4 C and quality 40%?...
What is the enthalpy (kJ/kg) of refrigerant 134a which is at 4 C and quality 40%? Select one: a. h = 204.57 kJ/kg. O b. h = 96.35 kJ/kg. O c. h = 135.46 kJ/ kg. O d.h = 115.90 kJ/kg. O e. h = 155.02 kJ/kg.
i need The entropy change of the refrigerant and also the amount of heat transfered Required...
i
need
The entropy change of the refrigerant
and also the amount of heat transfered
Required information NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. A 1.2 m3 rigid tank contains refrigerant-134a Initially at 200 kPa and 40 percent quality. Heat is transferred now to the refrigerant from a source at 35°C until the pressure rises to 400 kPa. Determine the entropy change of the refrigerant. Use the...
QUESTION 1 A heat pump with refrigerant-134a as the working fluid is used to keep a...
QUESTION 1 A heat pump with refrigerant-134a as the working fluid is used to keep a space at 25°C by absorbing heat from geothermal water that enters the evaporator at 50°C at a rate of 0.065 kg/s and leaves at 40°C. The refrigerant enters the evaporator at 20°C with a quality of 23 percent and leaves at the inlet pressure as saturated vapor. The refrigerant loses 300 W of heat to the surroundings as it flows through the compressor and...
A heat pump with refrigerant-134a as the working fluid is used to keep a space at 25°C by |absorbing heat from geotherm...
A heat pump with refrigerant-134a as the working fluid is used to keep a space at 25°C by |absorbing heat from geothermal water that enters the evaporator at 50°C at a rate of 0.046 kg/s and leaves at 40°C. The refrigerant enters the evaporator at 20°C with a quality 23 percent and leaves at the inlet pressure as saturated vapor. The refrigerant loses305 W o heat to the surroundings as it flows through the compressor and the refrigerant leaves the...
A Refrigeration System Using R-134A In a refrigeration system, the refrigerant R-134A begins as s...
A Refrigeration System Using R-134A In a refrigeration system, the refrigerant R-134A begins as saturated vapor at -15°(State 1). It then goes through a reversible adiabatic compressor to reach State 2. After flowing through the condenser (a heat exchanger), the refrigerant exits as saturated liquid at 70°C (State 3). It is then throttled by going through an expansion valve, to reach State 4. It finishes the cycle by going through another heat exchanger (the evaporator), to return to State 1....
Problem I: Not applicable for 2017 Problem II: In an R-134a vapor-compression home heat pump, R-134A...
Problem I: Not applicable for 2017 Problem II: In an R-134a vapor-compression home heat pump, R-134A enters the compressor (75% isentropic efficiency) as a saturated vapor at 200 kPa and leaves at 800 kPa. The refrigerant goes through a constant pressure condenser and leaves as a saturated liquid. The refrigerant then goes through an adiabatic expansion valve enters the evaporator as a liquid-vapor mixture. The mass flow rate of refrigerant is 0.1 kg/s. and Cod A. Write the equation for...
QUESTIONS 1. Refrigerant-134a is cooled by water in a condenser. The refrigerant enters the condenser at...
QUESTIONS 1. Refrigerant-134a is cooled by water in a condenser. The refrigerant enters the condenser at a pressure of 1 MPa and a temperature of 70°C at a flow rate of 6 kg / min and exits at a temperature of 35 °C. Cooling water enters the condenser at 300 kPa pressure and 15 °C temperature and exits at 25 °C temperature. By neglecting pressure losses, Calculate; a) mass flow of cooling water b) the heat transfer from the refrigerant...
5. Refrigerant-134a at 700kPa, 70°C, and 8 kg/min is cooled by air in a condenser until...
5. Refrigerant-134a at 700kPa, 70°C, and 8 kg/min is cooled by air in a condenser until it exits as a saturated liquid at the same pressure. The cooling air enters the condenser at 1MPa and 10°C and leaves at 17°C at the same pressure. Determine: a) Considering only the Refrigerant as a system, the heat transfer rate of a refrigerant from the condenser in (kl/min). R-134a Tables are attached! b) The mass flow rate of the air required for cooling...
uestion 5 The specific volume of a system consisting of refrigerant-134a at 1.0 Mpa is 0.01 m3kg. The quality of the R-134a is 12.6% 46 9 % 68 3 % e None of them 354% Moving to another question will save this response to 250000231 (manea) (identity verified).
A liquid-vapor mixture of refrigerant-134a is at -10°C with a quality of 40 percent. Determine the value of the Gibbs function, in kJ/kg. when the two phases are in equilibrium. R-134a -10°C 0.4 kJ/kg kJ/kg
What is the enthalpy (kJ/kg) of refrigerant 134a which is at 4 C and quality 40%? Select one: a. h = 204.57 kJ/kg. O b. h = 96.35 kJ/kg. O c. h = 135.46 kJ/ kg. O d.h = 115.90 kJ/kg. O e. h = 155.02 kJ/kg.
i
need
The entropy change of the refrigerant
and also the amount of heat transfered
Required information NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. A 1.2 m3 rigid tank contains refrigerant-134a Initially at 200 kPa and 40 percent quality. Heat is transferred now to the refrigerant from a source at 35°C until the pressure rises to 400 kPa. Determine the entropy change of the refrigerant. Use the...
QUESTION 1 A heat pump with refrigerant-134a as the working fluid is used to keep a space at 25°C by absorbing heat from geothermal water that enters the evaporator at 50°C at a rate of 0.065 kg/s and leaves at 40°C. The refrigerant enters the evaporator at 20°C with a quality of 23 percent and leaves at the inlet pressure as saturated vapor. The refrigerant loses 300 W of heat to the surroundings as it flows through the compressor and...
A Refrigeration System Using R-134A In a refrigeration system, the refrigerant R-134A begins as saturated vapor at -15°(State 1). It then goes through a reversible adiabatic compressor to reach State 2. After flowing through the condenser (a heat exchanger), the refrigerant exits as saturated liquid at 70°C (State 3). It is then throttled by going through an expansion valve, to reach State 4. It finishes the cycle by going through another heat exchanger (the evaporator), to return to State 1....
Problem I: Not applicable for 2017 Problem II: In an R-134a vapor-compression home heat pump, R-134A enters the compressor (75% isentropic efficiency) as a saturated vapor at 200 kPa and leaves at 800 kPa. The refrigerant goes through a constant pressure condenser and leaves as a saturated liquid. The refrigerant then goes through an adiabatic expansion valve enters the evaporator as a liquid-vapor mixture. The mass flow rate of refrigerant is 0.1 kg/s. and Cod A. Write the equation for...
QUESTIONS 1. Refrigerant-134a is cooled by water in a condenser. The refrigerant enters the condenser at a pressure of 1 MPa and a temperature of 70°C at a flow rate of 6 kg / min and exits at a temperature of 35 °C. Cooling water enters the condenser at 300 kPa pressure and 15 °C temperature and exits at 25 °C temperature. By neglecting pressure losses, Calculate; a) mass flow of cooling water b) the heat transfer from the refrigerant...
5. Refrigerant-134a at 700kPa, 70°C, and 8 kg/min is cooled by air in a condenser until it exits as a saturated liquid at the same pressure. The cooling air enters the condenser at 1MPa and 10°C and leaves at 17°C at the same pressure. Determine: a) Considering only the Refrigerant as a system, the heat transfer rate of a refrigerant from the condenser in (kl/min). R-134a Tables are attached! b) The mass flow rate of the air required for cooling...
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