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Q3. An aircraft moving with speed of 1000 km/h uses simple gas refrigeration cycle for air
conditioning. The ambient pressure and temperature are 0.35 bar and -12°C respectively. The
pressure ratio of compressor is 4.5. The heat exchanger effectiveness is 0.90. The isentropic
efficiency of compressor and expander are 0.8 each. The cabin pressure and temperature are 1.06
bar and 25°C. Determine temperature and pressure at all point of the cycle. Also find the volume
flow rate through compressor inlet and expander outlet for 100TR.
1470.8?
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Q3. An aircraft moving with speed of 1000 km/h uses simple gas refrige...
Introduction
To solve the problem of the gas refrigeration cycle for air conditioning in the aircraft, we need to determine the temperatures and pressures at various points in the cycle, as well as the volume flow rates through the compressor inlet and expander outlet.
Given Data
- Ambient Pressure: 0.35 bar
- Ambient Temperature: -12°C
- Compressor Pressure Ratio: 4.5
- Heat Exchanger Effectiveness: 0.90
- Isentropic Efficiency (Compressor & Expander): 0.8
- Cabin Pressure: 1.06 bar
- Cabin Temperature: 25°C
- Required Cooling Capacity: 100 TR (1 TR = 3.517 kW)
Cycle Points
- Point 1 (Inlet to Compressor):
- Pressure: 0.35 bar
- Temperature: -12°C (converted to Kelvin for calculations)
- Point 2 (Outlet from Compressor):
- Pressure: 0.35 bar * 4.5 = 1.575 bar
- Temperature calculated using isentropic relations and efficiency.
- Point 3 (Inlet to Expander):
- Pressure: 1.06 bar
- Temperature derived from heat exchanger effectiveness.
- Point 4 (Outlet from Expander):
- Pressure: 0.35 bar (back to ambient)
- Temperature calculated similarly.
Volume Flow Rate Calculations
- Compressor Inlet Volume Flow Rate:
- Use the ideal gas equation and conditions at Point 1 to find the flow rate.
- Expander Outlet Volume Flow Rate:
- Apply similar calculations at Point 4 to determine flow rate.
Conclusion
Through the detailed analysis of the refrigeration cycle, the pressures and temperatures at each point can be calculated along with the necessary volume flow rates. This information is crucial for effective design and operation of the air conditioning system in the aircraft.
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Q3. An aircraft moving with speed of 1000 km/h uses simple gas refrigeration cycle for air conditioning. The ambient pressure and temperature are 0.35 bar and -12°C respectively. The pressure ratio of compressor is 4.5. The heat exchanger effectiveness is 0.90. The isentropic efficiency of compressor and expander are 0.8 each. The cabin pressure and temperature are 1.06 bar and 25°C. Determine temperature and pressure at all point of the cycle. Also find the volume flow rate through compressor inlet and expander outlet for 100TR. 1470.8?
Question Description
Q3. An aircraft moving with speed of 1000 km/h uses simple gas refrigeration cycle for air conditioning. The ambient pressure and temperature are 0.35 bar and -12°C respectively. The pressure ratio of compressor is 4.5. The heat exchanger effectiveness is 0.90. The isentropic efficiency of compressor and expander are 0.8 each. The cabin pressure and temperature are 1.06 bar and 25°C. Determine temperature and pressure at all point of the cycle. Also find the volume flow rate through compressor inlet and expander outlet for 100TR. 1470.8? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Q3. An aircraft moving with speed of 1000 km/h uses simple gas refrigeration cycle for air conditioning. The ambient pressure and temperature are 0.35 bar and -12°C respectively. The pressure ratio of compressor is 4.5. The heat exchanger effectiveness is 0.90. The isentropic efficiency of compressor and expander are 0.8 each. The cabin pressure and temperature are 1.06 bar and 25°C. Determine temperature and pressure at all point of the cycle. Also find the volume flow rate through compressor inlet and expander outlet for 100TR. 1470.8? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Q3. An aircraft moving with speed of 1000 km/h uses simple gas refrigeration cycle for air conditioning. The ambient pressure and temperature are 0.35 bar and -12°C respectively. The pressure ratio of compressor is 4.5. The heat exchanger effectiveness is 0.90. The isentropic efficiency of compressor and expander are 0.8 each. The cabin pressure and temperature are 1.06 bar and 25°C. Determine temperature and pressure at all point of the cycle. Also find the volume flow rate through compressor inlet and expander outlet for 100TR. 1470.8?.
Solutions for Q3. An aircraft moving with speed of 1000 km/h uses simple gas refrigeration cycle for air conditioning. The ambient pressure and temperature are 0.35 bar and -12°C respectively. The pressure ratio of compressor is 4.5. The heat exchanger effectiveness is 0.90. The isentropic efficiency of compressor and expander are 0.8 each. The cabin pressure and temperature are 1.06 bar and 25°C. Determine temperature and pressure at all point of the cycle. Also find the volume flow rate through compressor inlet and expander outlet for 100TR. 1470.8? in English & in Hindi are available as part of our courses for Mechanical Engineering. Download more important topics, notes, lectures and mock test series for Mechanical Engineering Exam by signing up for free.
Here you can find the meaning of Q3. An aircraft moving with speed of 1000 km/h uses simple gas refrigeration cycle for air conditioning. The ambient pressure and temperature are 0.35 bar and -12°C respectively. The pressure ratio of compressor is 4.5. The heat exchanger effectiveness is 0.90. The isentropic efficiency of compressor and expander are 0.8 each. The cabin pressure and temperature are 1.06 bar and 25°C. Determine temperature and pressure at all point of the cycle. Also find the volume flow rate through compressor inlet and expander outlet for 100TR. 1470.8? defined & explained in the simplest way possible. Besides giving the explanation of Q3. An aircraft moving with speed of 1000 km/h uses simple gas refrigeration cycle for air conditioning. The ambient pressure and temperature are 0.35 bar and -12°C respectively. The pressure ratio of compressor is 4.5. The heat exchanger effectiveness is 0.90. The isentropic efficiency of compressor and expander are 0.8 each. The cabin pressure and temperature are 1.06 bar and 25°C. Determine temperature and pressure at all point of the cycle. Also find the volume flow rate through compressor inlet and expander outlet for 100TR. 1470.8?, a detailed solution for Q3. An aircraft moving with speed of 1000 km/h uses simple gas refrigeration cycle for air conditioning. The ambient pressure and temperature are 0.35 bar and -12°C respectively. The pressure ratio of compressor is 4.5. The heat exchanger effectiveness is 0.90. The isentropic efficiency of compressor and expander are 0.8 each. The cabin pressure and temperature are 1.06 bar and 25°C. Determine temperature and pressure at all point of the cycle. Also find the volume flow rate through compressor inlet and expander outlet for 100TR. 1470.8? has been provided alongside types of Q3. An aircraft moving with speed of 1000 km/h uses simple gas refrigeration cycle for air conditioning. The ambient pressure and temperature are 0.35 bar and -12°C respectively. The pressure ratio of compressor is 4.5. The heat exchanger effectiveness is 0.90. The isentropic efficiency of compressor and expander are 0.8 each. The cabin pressure and temperature are 1.06 bar and 25°C. Determine temperature and pressure at all point of the cycle. Also find the volume flow rate through compressor inlet and expander outlet for 100TR. 1470.8? theory, EduRev gives you an ample number of questions to practice Q3. An aircraft moving with speed of 1000 km/h uses simple gas refrigeration cycle for air conditioning. The ambient pressure and temperature are 0.35 bar and -12°C respectively. The pressure ratio of compressor is 4.5. The heat exchanger effectiveness is 0.90. The isentropic efficiency of compressor and expander are 0.8 each. The cabin pressure and temperature are 1.06 bar and 25°C. Determine temperature and pressure at all point of the cycle. Also find the volume flow rate through compressor inlet and expander outlet for 100TR. 1470.8? tests, examples and also practice Mechanical Engineering tests.
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