Carnot cycle

Rankine cycle

reversed Camot cycle

none of the above.

Ericsson

Stirling

Carnot

Bell-coleman

very little work input

maximum work input

nearly same work input as for vapour compression cycle

zero work input

noisy operation

quiet operation

cooling below 0°C

very little power consumption

actual COP/fheoretical COP

theoretical COP/actual COP

actual COP x theoretical COP

1 - actual COP x theoretical COP