Rheological properties essential for the atomization of coal water slurries (CWS). Quarterly progress report, September 15, 1992--December 15, 1992
During the previous quarter, it was noted that understanding the rheology of polymeric additives used in enhancing the stability of the CWS was essential in meeting the project objectives. Thus, further review of the literature was carried out to gain information on the rheology of polymeric additives, particularly at high shear rates. Philippoff and Hess [1] reported the existence of four distinct flow regions in the behavior of flow curve analysis of polymer solutions (Figure 1). These regions are characterized by (1) A Newtonian Region; (2) A non-Newtonian pseudoplastic region; (3) A second Newtonian region at high shear rates 10{sup 5} to 10{sup 6} sec{sup {minus}1}; (4) and a region of steepening slope identified as the onset of turbulence. Efforts during this past quarter were therefore directed towards the study of high shear rheology of the CWS.
- Research Organization:
- Grambling State Univ., LA (United States). Dept. of Chemistry
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG22-91PC91292
- OSTI ID:
- 10131878
- Report Number(s):
- DOE/PC/91292-T5; ON: DE93009654
- Resource Relation:
- Other Information: PBD: [1992]
- Country of Publication:
- United States
- Language:
- English
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Rheological properties essential for the atomization of coal water slurries (CWS). Quarterly progress report, December 15, 1992--March 15, 1993
Rheological properties essential for the atomization of coal water slurries (CWS). Quarterly progress report, March 15, 1992--June 15, 1992