Influence of Liquid Water and Water Vapor on Antimisting Kerosene (AMK)
Abstract
Experiments have been performed to evaluate the compatibility of liquid water and water vapor with antimisting kerosenes (AMK) containing polymer additive FM-9 developed by Imperial Chemical Industries. This effort consists of the determination of water solubility in AMK, influence of water on restoration (degradation) of AMK, and effect of water on standard AMK quality control methods. The principal conclusions of this investigation are: (1) The uptake of water in AMK critically depends upon the degree of agitation and can be as high as 1300 ppm at 20 degrees C. (2) More than 250 to 300 ppm of water in AMK causes an insoluble second phase to form. The amount of this second phase depends on fuel temperature, agitation, degree of restoration (degradation) and the water content of the fuel. (3) Laboratory-scale experiments indicate precipitate formation when water vapor comes in contact with cold fuel surfaces at a much lower level of water (125 to 150 ppm). (4) Precipitate formation is very pronounced in these experiments where humid air is percolated through a cold fuel (-20 degrees C). (5) Laboratory tests further indicate that water droplet settling time is markedly reduced in AMK as compared to Jet A. (6) Limited low temperature testing down to -30 degrees C under laboratory conditions indicates the formation of stable, transparent gels. (7) The antimisting (fire protection) properties of AMK in the presence of water are equivalent to or better than in its absence, and (8) the present AMK quality control methods (filter and cup tests) are influenced by the variation of water content in AMK.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1983
- Accession Number
- ADA129010
Entities
People
- A. H. Yavrouian
- M. Sarbolouki
- V. Sarohia
Organizations
- Jet Propulsion Laboratory