1. A Study On Fan Off Performances of Refrigerator and Pepper Drying Room
Lee Hee-Seung
Yoo Byeoung-Cheol
Lee Chun-se
Choi Won-Suk

2. Contents Introduction Test Equipment Methodology Result and Discussion
Conclusion

3. Introduction Save the data Visibility of Result Data Analysis
Presentation

4. Test Equipment condenser compressor KTE-1000BA Expansion valve
evaporator
Expansion valve

5. Test Equipment

6. Test Equipment
circuit diagram

7. Methodology T/C Switch Range
Condition 1: MED: 10 ℃ Diff : 3℃ Fan ON/OFF
Condition 2: MED: 0 ℃ Diff : 3℃ Fan ON/OFF

8. Result Cond. 1 Temp. Analysis Operation of the fan
Non-operation of the fan
Focus on frequency of the operation of the each element and the difference of the temperature between evaporator in and out

9. Result Cond. 1 Pressure Analysis Operation of the fan
Non-operation of the fan
Available to check the changed point in process of the fan on which means more number of element operation is needed

10. Result Cond. 1 Enthalpy Analysis Operation of the fan
Non-operation of the fan
Amount of the heat exchange in qe, qc and qr is higher than the others
Focusing on the change of the curved line , heat exchange is easy to be generated

11. Result Cond. 2 Temp. Analysis
Operation of the fan
Non-operation of the fan
Compressor’s temperature is the highest in all of the elements’
Each curved line is changed by operation cycle

12. Result Cond. 2 Pressure Analysis Non-operation of the fan
Pressure distribution is considerably changed in the condenser
Pressure distribution is inconsiderably changed in the evaporator

13. Result Cond. 2 Enthalpy Analysis Operation of the fan
Non-operation of the fan
Enthalpy Analysis is not changed from a time and a condition of operation in every element.

14. Result
C.O.P
Enthalpy Analysis is converged 5

15. Conclusion

16. Conclusion

17. Conclusion

18. Thank You