| Title |
A Study on Efficiency Enhancement in a Reciprocating Compressor for a Domestic Refrigerator |
| Keywords |
Refrigerator ; 냉장고 ; Hermetic ; 밀폐형 ; Reciprocating compressor ; 왕복동압축기 ; Parametric study ; 인자연구 ; Heat transfer ; 열전달 ; Numerical analysis ; 수치해석 |
| Abstract |
Efficiency of the compressor is most important parameter in the domestic refrigerator which runs year around. With developed analytical model about heat transfer analysis in the hermetic compressor, parametric study was performed to know the effect on efficiency by design and material modification of the compressor. Volumetric efficiency of the compressor increased approximately 3% when insulation is increased about 50% in suction component. However, the insulation effect on discharge component was only 1%. When the thermal conductivity of the discharge plenum is reduced from 300 to 20W/m?K, volumetric efficiency increased about 3.1%. There is no attraction in efficiency increment with variation of outside surface area of the compressor and radial heat transfer coefficient of the solid component in the compressor shell. |