Miscibility, Solubility, Viscosity, and Density Measurements for R-236ea with Four Different Exxon Lubricants
Abstract
The report discusses miscibility, solubility, viscosity, and density data for the refrigerant hydrofluorocarbon (HFC)-236ea (or R-236ea) and four lubricants supplied by Exxon Corporation. Such data are needed to determine the suitability of refrigerant/lubricant combinations for use in refrigeration systems. The miscibility tests were performed in a test facility consisting of a series of miniature test cells submerged in a constant temperature bath, precisely controlled over a range of -50 to 90 deg C. The test cells were constructed to allow for complete visibility of refrigerant/lubricant mixtures under all test conditions. Critical solution temperatures obtained from the miscibility data are presented for each refrigerant/lubricant combination. Data for the R-236ea in each of the test lubricants have been collected for refrigerant concentrations of 10-90%. The raw data have been presented, and the results have been summarized. Two of the oils (Exxon-03 and 04) were found to be completely miscible over the temperature and concentration ranges tested, while the other two (Exxon-01 and 02) were found to be immiscible over most of the temperature range tested. Solubility, viscosity, and density data were also obtained for R-236ea mixed with the same four oils for a refrigerant concentration range of 0-40 wt% refrigerant over a temperature range of 30-100 deg C.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1999
- Accession Number
- ADA371241
Entities
People
- H. M. Kang
- M. B. Pate
Organizations
- Iowa State University