Summary
Within the framework of a research project, polyalkylene glycols (PG) were found to be lubricants which are miscible with ammonia even at low temperatures. Miscibility of PG-type oils with ammonia depends on their composition of ethylene oxide (EO) and propylene oxide (PO). Concerning miscibility, which was investigated in a temperature range from -80 up to 90 deg C, an oil with equal proportions of EO and PO seems to be most suitable for an application in an ammonia system. For this mixture, the liquid viscosity of six concentrations in a temperature range from -40 up to 80 deg C was measured using a falling ball viscometer.
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Pages: 1993-2
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Details
- Original title: Solubility and viscosity of new oil/ammonia systems.
- Record ID : 1994-0081
- Languages: English
- Source: Energy Efficiency in Refrigeration and Global Warming Impact.
- Publication date: 1993/05/12
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Indexing
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Themes:
Ammonia;
Lubricants - Keywords: Viscosity; Solubility; Ammonia; Mixture; Oil; Glycol; Refrigerant
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Study of soluble lubricants in ammonia. 1. Solu...
- Author(s) : BURKE M., KRUSE H.
- Date : 1993/09
- Languages : German
- Source: Kälte + Klimatechnik (Die) - vol. 46 - n. 9
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Solubility, viscosity, and density measurements...
- Author(s) : CAVESTRI R. C., MUNK J., MENNING M.
- Date : 1994
- Languages : English
- Source: ASHRAE Transactions 1994.
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Ammonia-soluble oil for refrigerating compressors.
- Author(s) : BOCK W.
- Date : 1994/07
- Languages : German
- Source: KI Luft Kältetech. - vol. 30 - n. 7
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Measurements of solubility, liquid density, and...
- Author(s) : SEETON C. J., HRNJAK P. S.
- Date : 2009/06/23
- Languages : English
- Source: 3rd Conference on Thermophysical Properties and Transfer Processes of Refrigerants
- Formats : PDF
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Polyglycols: a new lubrication oil for refriger...
- Author(s) : BOCK W., SPILKER M.
- Date : 1993/06
- Languages : Dutch
- Source: Koude & Luchtbehandeling - vol. 86 - n. 6
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