A Study On Fan Off Performances of Refrigerator and Pepper Drying Room 20021690 Lee Hee-Seung 20021638 Yoo Byeoung-Cheol 20021686 Lee Chun-se 20021729 Choi Won-Suk

Contents Introduction Test Equipment Methodology Result and Discussion Conclusion

Introduction Save the data Visibility of Result Data Analysis Presentation

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

Test Equipment

Test Equipment circuit diagram

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

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

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

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

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

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

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.

Result C.O.P Enthalpy Analysis is converged 5

Conclusion

Conclusion

Conclusion

Thank You