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The capacity of the refrigerator (working on reversed Carnot cycle) is 280 Tones...
1) An ice-making machine inside a refrigerator operates in a Carnot cycle. It takes heat from...
1) An ice-making machine inside a refrigerator operates in a Carnot cycle. It takes heat from liquid water at 0.0∘C and rejects heat to a room at a temperature of 24.7 ∘C. Suppose that liquid water with a mass of 76.6 kg at 0.0∘C is converted to ice at the same temperature. Take the specific transformation energy for water to be Lf = 3.34×105 J/kg . Part A:- How much energy E must be supplied to the device? Express your answer...
A refrigerator is constructed with a Carnot engine. Draw a diagram of the Carnot cycle in...
A refrigerator is constructed with a Carnot engine. Draw a diagram of the Carnot cycle in a P-V diagram, label the components, and then detail the processes that occur (I short phrase each is all that is necessary). Draw a diagram of the Carnot cycle in a H-S diagram, and label it to match (a) Note: His enthalpy and S is entropy. Water is brought to 0 °C in the refrigerator with the heat being discharged into a reservoir at...
An ice-making machine inside a refrigerator operates in a Carnot cycle. It takes heat from liquid...
An ice-making machine inside a refrigerator operates in a Carnot cycle. It takes heat from liquid water at 0.0 ∘C and rejects heat to a room at a temperature of 21.6 ∘C. Suppose that liquid water with a mass of 77.6 kg at 0.0 ∘C is converted to ice at the same temperature. Take the heat of fusion for water to be Lf = 3.34×105 J/kg . |QH| | Q H | = 2.797×107 J How much energy E must...
(12 points) A refrigerator using refrigerant-134a as the working fluid operates on the vapor compression cycle....
(12 points) A refrigerator using refrigerant-134a as the working fluid operates on the vapor compression cycle. The cycle operates between 200 kPa and 1.2 MPa. The refrigerant flows through the cycle at a rate of 0.019 kg/s. The (actual) refrigerator has a compressor with an isentropic efficiency of 85%. The refrigerant enters the compressor slightly superheated by 56 C hint add this to the saturation temperature). The refrigerant leaves the condenser slightly subcooled by 1.9°C. What is the rate of...
E A heat pump operates on a reversed Carnot cycle with a COP of 7.7. If...
E A heat pump operates on a reversed Carnot cycle with a COP of 7.7. If it keeps a -pace at 25 C by consuming 9.6 kW of power. a. Determine the temperature of the reservoir from which the heat is absorbed, b. Determine the heating load provided by the heat pump. 6 Draw the energy flow diagram of the heat pump. d. Determine the actual COP if its irreversibility is 17 kW. e Determine the second law efficiency of...
P4.4 An air-conditioning unit, operating on a reversed Carnot cycle, is used to keep a house...
P4.4 An air-conditioning unit, operating on a reversed Carnot cycle, is used to keep a house at 20°C in an environment at 45°C. The electric power input to the unit is 3.5 kW. Determine the COP of the air conditioning unit, and the rate of cooling in kW and in Btu/h. P4.5_F U Cooling P4.6 . mine the minimum post Question the same me ol coolin. PAT
An ice-making machine inside a refrigerator operates in a Carnot cycle. It takes heat from liquid...
An ice-making machine inside a refrigerator operates in a Carnot cycle. It takes heat from liquid water at 0.0∘C and rejects heat to a room at a temperature of 24.5 ∘C. Suppose that liquid water with a mass of 84.4 kg at 0.0∘C is converted to ice at the same temperature. Take the heat of fusion for water to be Lf = 3.34×105 J/kg . Part A How much heat |QH| is rejected to the room? Express your answer in...
An ice-making machine inside a refrigerator operates in a Carnot cycle. It takes heat from liquid...
An ice-making machine inside a refrigerator operates in a Carnot cycle. It takes heat from liquid water at 0.0 ∘C and rejects heat to a room at a temperature of 24.9 ∘C. Suppose that liquid water with a mass of 71.5 kg at 0.0 ∘C is converted to ice at the same temperature. Take the heat of fusion for water to be Lf = 3.34×105 J/kg . Part A Part complete How much heat |QH| is rejected to the room?...
4. Water is the working fluid in a Carnot vapor power cycle. Saturated liquid enters the...
4. Water is the working fluid in a Carnot vapor power cycle. Saturated liquid enters the boiler at 16 MPa, and saturated vapor enters the turbine. The condenser pressure is 8 kPa. The mass flow rate of steam entering the turbine is 120 kg/s. Determine (a) the thermal efficiency. (b) the back work ratio. (c) the net power developed, in kW. (d) the rate of heat transfer from the working fluid passing through the condenser, in kW.
Tt (12 points) A refrigerator using refrigerant-134a as the working fluid operates on the vapor compression...
Tt
(12 points) A refrigerator using refrigerant-134a as the working fluid operates on the vapor compression cycle. The cycle operates between 200 kPa and 1.2 MPa. The refrigerant flows through the cycle at a rate of 0.015 kg/s. The actual) refrigerator has a compressor with an isentropic efficiency of 82%. The refrigerant enters the compressor slightly superheated by 6.2°C (hint: add this to the saturation temperature). The refrigerant leaves the condenser slightly subcooled by 1.8°C. What is the rate of...
A refrigerator is constructed with a Carnot engine. Draw a diagram of the Carnot cycle in a P-V diagram, label the components, and then detail the processes that occur (I short phrase each is all that is necessary). Draw a diagram of the Carnot cycle in a H-S diagram, and label it to match (a) Note: His enthalpy and S is entropy. Water is brought to 0 °C in the refrigerator with the heat being discharged into a reservoir at...
(12 points) A refrigerator using refrigerant-134a as the working fluid operates on the vapor compression cycle. The cycle operates between 200 kPa and 1.2 MPa. The refrigerant flows through the cycle at a rate of 0.019 kg/s. The (actual) refrigerator has a compressor with an isentropic efficiency of 85%. The refrigerant enters the compressor slightly superheated by 56 C hint add this to the saturation temperature). The refrigerant leaves the condenser slightly subcooled by 1.9°C. What is the rate of...
E A heat pump operates on a reversed Carnot cycle with a COP of 7.7. If it keeps a -pace at 25 C by consuming 9.6 kW of power. a. Determine the temperature of the reservoir from which the heat is absorbed, b. Determine the heating load provided by the heat pump. 6 Draw the energy flow diagram of the heat pump. d. Determine the actual COP if its irreversibility is 17 kW. e Determine the second law efficiency of...
P4.4 An air-conditioning unit, operating on a reversed Carnot cycle, is used to keep a house at 20°C in an environment at 45°C. The electric power input to the unit is 3.5 kW. Determine the COP of the air conditioning unit, and the rate of cooling in kW and in Btu/h. P4.5_F U Cooling P4.6 . mine the minimum post Question the same me ol coolin. PAT
4. Water is the working fluid in a Carnot vapor power cycle. Saturated liquid enters the boiler at 16 MPa, and saturated vapor enters the turbine. The condenser pressure is 8 kPa. The mass flow rate of steam entering the turbine is 120 kg/s. Determine (a) the thermal efficiency. (b) the back work ratio. (c) the net power developed, in kW. (d) the rate of heat transfer from the working fluid passing through the condenser, in kW.
Tt
(12 points) A refrigerator using refrigerant-134a as the working fluid operates on the vapor compression cycle. The cycle operates between 200 kPa and 1.2 MPa. The refrigerant flows through the cycle at a rate of 0.015 kg/s. The actual) refrigerator has a compressor with an isentropic efficiency of 82%. The refrigerant enters the compressor slightly superheated by 6.2°C (hint: add this to the saturation temperature). The refrigerant leaves the condenser slightly subcooled by 1.8°C. What is the rate of...
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