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Title: DESIGN OF ATOMIZERS AND BURNERS FOR COAL-WATER SLURRY COMBUSTION

Technical Report ·
DOI:https://doi.org/10.2172/8841· OSTI ID:8841

A new, miniature variation on the Triple-Concentric atomizer (TCA) was designed and constructed. This prototype will be used to test the applicability of the TCA concept to very fine sprays such as medical nebulizers. Preliminary tests of its performance with plain water were conducted. Atomization tests of an aqueous polymer solution were conducted using the existing TCA. These tests show that there is little change in the Sauter Mean diameter as polymer concentration or molecular weight are increased until the polymer molecules become highly intertwined. This report documents the activities and results from the period 1 April 1998 to 30 June 1998 and the planned activities for the next period, 1 July 1998 to 30 September 1998. Two primary activities were undertaken in this period: investigation of the variation in performance of a miniature TCA with variation in air flow rate and center air tube location; and droplet size measurements of water and aqueous polymer solutions generated by the existing triple-concentric atomizer.

Research Organization:
Federal Energy Technology Center Morgantown (FETC-MGN), Morgantown, WV (United States); Federal Energy Technology Center Pittsburgh (FETC-PGH), Pittsburgh, PA (United States)
Sponsoring Organization:
US Department of Energy (US)
DOE Contract Number:
FG22-95PC95105
OSTI ID:
8841
Report Number(s):
DE-FG22-95PC95105-11; TRN: AH200117%%170
Resource Relation:
Other Information: PBD: 1 Jul 1998
Country of Publication:
United States
Language:
English