3 A refrigeration cycle uses 1000 W of electrical power and

3. A refrigeration cycle uses 1000 W of electrical power, and has a COP, , of 4. At what rate is low temperature heat, Qin, transferred into the system?

Solution

cop of refrigerator=net refrigeration effect/work input

4=(net refrigeration effect/1000)

net refrigeration effect=4000 W

heat is transferred into the system is 4000 W