纳米 NiFe2O4与 OLFs 冷冻机油对往复式冰箱压缩机性能的影响

摘要

The nano refrigeration oil (NRO)was prepared by way of adding Nano-NiFe2 O4 (n-NiFe2 O4 )and onion-like fullerenes (OLFs)to the refrigeration oil using dispersion machine MINICER 993.0490.Lubrication performance of the NRO be-tween cylinder and piston were simulated by using SRV(II),a multi-functional reciprocating friction and wear test machine.Per-formance of the reciprocating compressors employing the NRO and refrigerant R600a was determined.The results indicate that the average coefficient of performance (COP)of the compressors from 1.5 to 1.58,increased by 5.3%.%采用 MINICER 993．0490分散机将纳米铁酸镍（n-NiFe2 O4）和纳米洋葱状富勒烯（onion-like fullerenes，OLFs）添加到 KFR22中制备出纳米冷冻机油。采用 SRV（II）摩擦磨损试验机测试了该冷冻机油在冰箱压缩机工况下往复运动的润滑性能。依据 SH／T0762－2005和 GB／T5773－2004规定的测试方法和条件，对采用此纳米冷冻机油冰箱用往复压缩机性能进行了对比检测。结果表明：采用此纳米冷冻机油后压缩机的平均性能系数 COP 由1．5提高至1．58，增加5．3％。