Polybasic esters: Novel synthetic lubricants designed for use in HFC compressors

Book · Sun Dec 31 04:00:00 EST 1995

OSTI ID:215710

Lilje, K C; Sabahi, M ^[1]; Hamid, S ^[2]

---

1. Albemarle Corp., Baton Rouge, LA (United States)
2. Huels America, Inc., Piscataway, NJ (United States)

The replacement of ozone-depleting refrigerants with ozone-friendly hydrofluorocarbons (HFCs) requires the use of lubricants that have not historically been used in refrigeration compressors and systems. Polyalkylene glycol (PAG) and polyol ester (POE) lubricants have been extensively evaluated in various refrigeration applications and are being used commercially. Novel synthetic lubricants have been developed based on polybasic esters (PBEs) resulting from malonate-acrylate Michael adducts. These lubricants were designed to address problems encountered in current HFC systems. PBE-based fluids show desired miscibility with R-134a and other HFC blends, excellent hydrolytic stability, no copper plating (even in wet systems), and excellent lubricity. All of these properties are obtained without the use of performance-enhancing additives. Key physical property data, bench and compressor test results, and compatibility study results will be presented.

• OSTI ID: 215710
• Report Number(s): CONF-950624--
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
COMPATIBILITY
COMPILED DATA
COMPRESSORS
ESTERS
GLYCOLS
MATERIAL SUBSTITUTION
PHYSICAL PROPERTIES
REFRIGERANTS
REFRIGERATING MACHINERY
SYNTHETIC LUBRICANTS