A two-stage compressor receives 0.50 kg/s of helium at 135 kPaa and 27 oC, and delivers it at 7000 kPaa. The compression is polytropic with n = 1.5. The intercooler is ideal. Determine: a) the power required; b) the intercooler pressure; c) the maximum temperature;
A two-stage compressor receives 0.50 kg/s of helium at 135 kPaa and 27 oC,
and delivers it at 7000 kPaa. The compression is polytropic with n = 1.5. The intercooler is
ideal. Determine:
a) the power required;
b) the intercooler pressure;
c) the maximum
temperature;
d) the temperature for one stage of compression; and
e) the heat transferred
in the intercooler. Note: For helium gas, R = 2.077 kJ/kgoK and k = 1.666.
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A two-stage compressor receives 0.50 kg/s of helium at 135 kPaa and 27 oC,
and delivers it at 7000 kPaa. The compression is polytropic with n = 1.5. The intercooler is
ideal. Determine:
a) the power required;
b) the intercooler pressure;
c) the maximum
temperature;
d) the temperature for one stage of compression; and
e) the heat transferred
in the intercooler. Note: For helium gas, R = 2.077 kJ/kgoK and k = 1.666.
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