PUBLI/LIHUEDIDO PUBLIC/CYHOEDD Question 2 Helium at 600 kPa and 90 °C expands isentropically through a convergent-diverg
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PUBLI/LIHUEDIDO PUBLIC/CYHOEDD Question 2 Helium at 600 kPa and 90 °C expands isentropically through a convergent-diverg
Question 2 Helium at 600 kPa and 90 °C expands isentropically through a convergent-divergent nozzle to 100 kPa. For perfectly expanded conditions, determine (a) the mass flow rate through a throat area of 3 cm², (15 marks) (b) the required exit area and the corresponding exit velocity. (10 marks) The molar mass of helium is 4 kg/kmol and y = 5/3. Assume the universal gas constant is 8.3145 kJ/kmol.K. (Total 25 marks) a fo Page 3 of 10
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