Question

Air is compressed steadily by a 5-kW compressor from 100
kPa and 17°C to 600 kPa and 167°C at a rate of 1.6 kg/min.
During this process, some heat transfer takes place between
the compressor and the surrounding medium at 17°C.
Determine the rate of entropy change of air during this
process.

Answer 1

Answer:

is compressed steadily by a 5-kW compressor from 100

kPa and 17°C to 600 kPa and 167°C at a rate of 1.6 kg/min.

During this process, some heat transfer takes place between

the compressor and the surrounding medium at 17°C.

Determine the rate of entropy change of air during this

process.