Investigation of the effect of coal particle sizes on the interfacial and rheological properties of coal-water slurry fuels. Quarterly report No. 3, January 1, 1995--March 31, 1995

Technical Report · Tue Aug 01 00:00:00 EDT 1995

DOI:https://doi.org/10.2172/94671· OSTI ID:94671

Kihm, K D

Microscopic behavior of the bubble pressure has been investigated for selected aqueous solutions. The Kruss dynamic tensiometer has been modified so that the analog pressure readings of the instrument can be digitized through a computer interface for post data processing. Measurements of peak pressure, minimum pressure, surfactant diffusion time, and dead time are presented for DDBS-soft and 1840{minus}x aqueous solutions of surfactant concentrations of up to 1.0%. The implementation of the A-to-D data conversion also permits to examine the accuracy of the dynamic surface tension measurement which is based on the maximum bubble pressure principle.

• Research Organization: Texas A and M Univ., College Station, TX (United States). Dept. of Mechanical Engineering
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FG22-94PC94120
• OSTI ID: 94671
• Report Number(s): DOE/PC/94120-T3; ON: DE95015532
• Resource Relation: Other Information: PBD: [1995]
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
FUEL SLURRIES
SURFACE TENSION
RHEOLOGY
COAL
WATER
MIXTURES
SURFACTANTS
EXPERIMENTAL DATA
PROGRESS REPORT