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
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
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