History, asked by allo40, 4 months ago

3. An aircraft is flying at a speed of 950 kmph. It uses a reduced
ambient air refrigeration cycle. The ambient temperature and
pressure are -15°C and 0.35 bar. The compressor and turbine
isentropic efficiencies are 0.80 & 0.85 respectively. The pressure of
ram air is 0.80 bar. The exhaust air of the auxiliary turbine that runs
on ram air cools the compressed air. The effectiveness of the heat
exchanger is 0.9. The compression ratio is 3 bar. The cabin air leaves
at a temperature and pressure of 25°C and 106 bar. Draw the circuit
diagram and T-s diagram of the above air refrigeration cycle and
Determine: i) Mass flow rate of air supplied to cabin to take a load
of 8 TR ii) Power used to drive the cooling fan iii) Quantity of air
passing through the heat exchanger if the temperature rise of the ram
air is 50K iv) COP of the system. Assume Cp of air-1.005kJ/kg-K

Answers

Answered by nadarkaur23
0

Answer:

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Explanation:

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