| Title |
An Experimental Study on Non-hygroscopic Propertiy of PAG and POE Oils for a CO₂Refrigeration System |
| Authors |
이성광(Sung Kwang Lee) ; 강병하(Byung Ha Kang) |
| Keywords |
냉동기유 ; PAG ; POE ; 항흡습성 ; 상대습도 Refrigeration oil ; Poly Alkylene Glycol ; Polyol Ester ; Non-hygroscopic property ; Relative humidity |
| Abstract |
This study has been conducted to select the suitable refrigeration oil for a CO₂ refrigeration system. Non-hygroscopic property of refrigeration oils is one of the most important properties for refrigeration oils. PAG and POE oils are considered as test oils in this study. Transient variation of water content of PAG and POE oils was measured for 3 different vessels in the environmental conditions, such as in the range of temperature 25℃ to 40℃ and relative humidity 40% to 85%. The results obtained that water content of both POE and PAG is increased with an increase in the contact area with ambient for 3 different vessels. It is also found that water content of both POE and PAG is increased as the ambient temperature and relative humidity is increased. Non-hygroscopic property of POE oil is found to be much superior than that of PAG oil. |