Carbon dioxide enters an adiabatic compressor at 100 kPa and 300 K at a rate of 0.5 kg/s and leaves at 600 kPa and 450 K. Neglecting

Question

Carbon dioxide enters an adiabatic compressor at a pressure of 100 kPa and a temperature of 300 K, with a mass flow rate of 0.5 kg/s. It exits the compressor at a pressure of 600 kPa and a temperature of 450 K. Neglecting any changes in kinetic energy, please determine the following: (a) the volume flow rate of the carbon dioxide at the compressor inlet, and (b) the power input to the compressor. 
Answers: (a) 0.283 m³/s, (b) 68.8 kW.

Anonymous · Accepted Answer

(a) (b) Explanation:Hello, (a) Based on the inlet conditions, we see that such carbon dioxide has an ideal behavior, so the inlet specific volume is:Thus, the volumetric flow rate turns out:(b) Now, by writing and energy balance we have: Thus, since the ideal gas enthalpy does not depend on the pressure, in Cengel's A-20 table, the corresponding enthalpies at 300K and 450 K are 9431kJ/kmol and 15483kJ/kmol whose values in kJ/kg are 214.34 kJ/kg and 351.89 kJ/kg respectively, thus:Best regards.

Anonymous · Answer

a)b)Explanation:part a)inlet volume of air V1 is given as putting all value in the above formula we know that  volume of flow rate part bwe know that total energy remain constant, so we haveE_in - E_out = Change in energy in systemE_in = E_outthereforethe power input to the compressor is

Anonymous

Carbon dioxide enters an adiabatic compressor at 100 kPa and 300 K at a rate of 0.5 kg/s and leaves at 600 kPa and 450 K. Neglecting

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