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2) Two systems are designed for heating the flowing air from 20 °C to 75°C at constant atmospheri...
Question 1 10 pts The electric heating systems used in many houses consist of a simple...
Question 1 10 pts The electric heating systems used in many houses consist of a simple duct with resistance heaters. Air is heated as it flows over resistance wires. Consider a 15 kW electric heating system. Air enters the heating section at 100 kPa and 17°C with a volume flow rate of 150 m3/min. If heat is lost from the air in the duct to the surroundings at a rate of 200 W, determine the exit temperature of the air...
Question # 3: The electric heating systems used in many houses consist of a simple dut...
Question # 3: The electric heating systems used in many houses consist of a simple dut wieh rie heating heaters. Air is heated as it flows over resistance wires. Consider a 12 kW electric enter the heating section at 100 kPa and 15°C with a volume flow rate of 120 m/min. The heat lost from the air in the duct to the surroundings is Assuming air gas constant Rair 0.287 kJ/kg,K,and CP-1005 k/kgk ine the density of the air at...
(10 pts) Six-thousand cubic feet per minutes (C.F.M.) of atmospheric air at 28°C (dry bulb) having...
(10 pts) Six-thousand cubic feet per minutes (C.F.M.) of atmospheric air at 28°C (dry bulb) having a wet bulb temperature of 23°C is to be cooled in an air conditioning system. The air conditioning system lowers the dry bulb temperature of the air to 20° C. Cooling with dehumidification is accomplished using chilled water loop. The chilled water enters the loop at 5°C at a rate of 280 kg/min and experience a 5°C temperature increase. The atmospheric pressure is 1...
In a gas turbine engine, the compressor takes in air at a temperature of 15°C, pressure...
In a gas turbine engine, the compressor takes in air at a temperature of 15°C, pressure of 100 kPa, and a volumetric flow rate of 5 m3 /s and compresses it to four times the initial pressure with an isentropic efficiency of 82%. The air then passes through a heat exchanger heated by the turbine exhaust before reaching the combustion chamber. In the heat exchanger 78% of the available heat is given to the air. The maximum temperature after constant...
Problem 2 (30 pts): For the air-conditioning system shown below in which atmospheric air is first...
Problem 2 (30 pts): For the air-conditioning system shown below in which atmospheric air is first heated and then humidified with a steam spray, determine the required heat transfer rate in the heating section and the required steam temperature in the humidification section when the steam pressure is 1 MPa. Heating fluid Steam, P-1 MPa Throttle Atmospheric O4 In air T, -5°C Pi - 100 kPa T3 -25°C 0,= 90° To= 24°C P,- 100 kPa V ,- 60 m/min 0...
2. (10 points) Assume that you have rigid container with a volume of 0.75 m? The...
2. (10 points) Assume that you have rigid container with a volume of 0.75 m? The container is initially evacuated (empty). Unfortunately, a tiny hole develops in the side of the container, and air from the surroundings leaks in. The surrounding air is at 100 kPa and 25°C. The air leaks in until the pressure in the container is the same as the pressure of the surrounding air. The process occurs slowly enough that heat transfer between the container and...
In a gas turbine engine, the compressor takes in air at a temperature of 15°C, pressure...
In a gas turbine engine, the compressor takes in air at a temperature of 15°C, pressure of 100 kPa, and a volumetric flow rate of 5 m3/s and compresses it to four times the initial pressure with an isentropic efficiency of 82%. The air then passes through a heat exchanger heated by the turbine exhaust before reaching the combustion chamber. In the heat exchanger 78% of the available heat is given to the air. The maximum temperature after constant pressure...
In a gas turbine engine, the compressor takes in air at a temperature of 15°C, pressure...
In a gas turbine engine, the compressor takes in air at a temperature of 15°C, pressure of 100 kPa, and a volumetric flow rate of 5 m/s and compresses it to four times the initial pressure with an isentropic efficiency of 82%. The air then passes through a heat exchanger heated by the turbine exhaust before reaching the combustion chamber. In the heat exchanger 78% of the available heat is given to the air. The maximum temperature after constant pressure...
In a gas turbine engine, the compressor takes in air at a temperature of 15°C, pressure...
In a gas turbine engine, the compressor takes in air at a temperature of 15°C, pressure of 100 kPa, and a volumetric flow rate of 5 m²/s and compresses it to four times the initial pressure with an isentropic efficiency of 82%. The air then passes through a heat exchanger heated by the turbine exhaust before reaching the combustion chamber. In the heat exchanger 78% of the available heat is given to the air. The maximum temperature after constant pressure...
APPLIED THERMODYNAMICS For the air-conditioning system shown below in which atmospheric air is first heated and...
APPLIED THERMODYNAMICS
For the air-conditioning system shown below in which atmospheric air is first heated and then humidified with a steam spray, determine the required heat transfer rate in the heating section and the required steam temperature in the humidification section when the steam pressure is 1 MPa. Heating fluid Steam. P-1 MPa Throttle Atmospheric W Out In air Ti - SC P. 100 kPa T3 -25C $. - 90% T: 24'c P) - 100 kPa V-60 m/min
Question 1 10 pts The electric heating systems used in many houses consist of a simple duct with resistance heaters. Air is heated as it flows over resistance wires. Consider a 15 kW electric heating system. Air enters the heating section at 100 kPa and 17°C with a volume flow rate of 150 m3/min. If heat is lost from the air in the duct to the surroundings at a rate of 200 W, determine the exit temperature of the air...
Question # 3: The electric heating systems used in many houses consist of a simple dut wieh rie heating heaters. Air is heated as it flows over resistance wires. Consider a 12 kW electric enter the heating section at 100 kPa and 15°C with a volume flow rate of 120 m/min. The heat lost from the air in the duct to the surroundings is Assuming air gas constant Rair 0.287 kJ/kg,K,and CP-1005 k/kgk ine the density of the air at...
(10 pts) Six-thousand cubic feet per minutes (C.F.M.) of atmospheric air at 28°C (dry bulb) having a wet bulb temperature of 23°C is to be cooled in an air conditioning system. The air conditioning system lowers the dry bulb temperature of the air to 20° C. Cooling with dehumidification is accomplished using chilled water loop. The chilled water enters the loop at 5°C at a rate of 280 kg/min and experience a 5°C temperature increase. The atmospheric pressure is 1...
Problem 2 (30 pts): For the air-conditioning system shown below in which atmospheric air is first heated and then humidified with a steam spray, determine the required heat transfer rate in the heating section and the required steam temperature in the humidification section when the steam pressure is 1 MPa. Heating fluid Steam, P-1 MPa Throttle Atmospheric O4 In air T, -5°C Pi - 100 kPa T3 -25°C 0,= 90° To= 24°C P,- 100 kPa V ,- 60 m/min 0...
2. (10 points) Assume that you have rigid container with a volume of 0.75 m? The container is initially evacuated (empty). Unfortunately, a tiny hole develops in the side of the container, and air from the surroundings leaks in. The surrounding air is at 100 kPa and 25°C. The air leaks in until the pressure in the container is the same as the pressure of the surrounding air. The process occurs slowly enough that heat transfer between the container and...
In a gas turbine engine, the compressor takes in air at a temperature of 15°C, pressure of 100 kPa, and a volumetric flow rate of 5 m3/s and compresses it to four times the initial pressure with an isentropic efficiency of 82%. The air then passes through a heat exchanger heated by the turbine exhaust before reaching the combustion chamber. In the heat exchanger 78% of the available heat is given to the air. The maximum temperature after constant pressure...
In a gas turbine engine, the compressor takes in air at a temperature of 15°C, pressure of 100 kPa, and a volumetric flow rate of 5 m/s and compresses it to four times the initial pressure with an isentropic efficiency of 82%. The air then passes through a heat exchanger heated by the turbine exhaust before reaching the combustion chamber. In the heat exchanger 78% of the available heat is given to the air. The maximum temperature after constant pressure...
In a gas turbine engine, the compressor takes in air at a temperature of 15°C, pressure of 100 kPa, and a volumetric flow rate of 5 m²/s and compresses it to four times the initial pressure with an isentropic efficiency of 82%. The air then passes through a heat exchanger heated by the turbine exhaust before reaching the combustion chamber. In the heat exchanger 78% of the available heat is given to the air. The maximum temperature after constant pressure...
APPLIED THERMODYNAMICS
For the air-conditioning system shown below in which atmospheric air is first heated and then humidified with a steam spray, determine the required heat transfer rate in the heating section and the required steam temperature in the humidification section when the steam pressure is 1 MPa. Heating fluid Steam. P-1 MPa Throttle Atmospheric W Out In air Ti - SC P. 100 kPa T3 -25C $. - 90% T: 24'c P) - 100 kPa V-60 m/min
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