How many processes does refrigeration system have?

There are 4 Types of processes in a  ideal refrigeration system

1- heat absorption at constant temperature and pressure( evoparator)

2- isentropic compression ( compressor)

3- heat rejection at constant temperature and pressure ( condensor)

4- throttling process at constant enthalpy(capillary tube expansion)

eight months of internships

4 stages...

1st compressing of refrigerant

2nd condensing of refrigerant

3rd expansion i.e throttling process

4th evaporating process