EFFECTS OF DIESEL—WATER EMULSION COMBUSTION ON DIESEL ENGINE NOx EMISSIONS By C. ALAN CANFIELD A THESIS PRESENTED TO THE GRADUATE SCHOOL OF THE UNIVERSITY OF FLORIDA IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF SCIENCE

1999 ii ACKNOWLEDGEMENTS I owe thanks to many individuals for supporting me in my graduate studies at the University of Florida (UF) while working full-time. I extend special and sincere thanks to my advisor and committee chair, Dr. Zhuomin Zhang, for providing valuable advice in the thesis preparation and graduate studies. Additional thanks go to Dr. Charles Proctor, III, for guidance in establishing the thesis proposal and background review, and Drs. William Lear and Alex Green for serving on my committee. All graduate coursework was conducted through the distance learning program facilitated by the Florida Engineering Education and Delivery System (FEEDS) offices at UF and the Florida State University Panama City Campus (FSU/PCC). I sincerely appreciate the dedication and patience of Professors Hsieh, Zhang, Mittal, and Kurzweg for accommodating off-campus students in their courses. Ms. Becky Hoover of the UF Mechanical Engineering Graduate Office, Ms. Joyce Phillips of the UF FEEDS office, and Ms. Pat Lawson of the FSU/PCC FEEDS office were invaluable in course administration. Mr. Oliver Canaday of the Tyndall AFB Education Center and Ms. Sheila Ray of the Tyndall AFB Library supported the receipt and viewing of my course videotapes. Without the support of these individuals, I would not have been able to pursue or complete this program. Most of the test data evaluated in this thesis was collected by Dr. Aly Shaaban in 1996, with the remainder collected in late 1998 by the author. A project to implement the alternative fuel described herein for a six-month test is planned for early 1999. A patent application is under review for the additive package used for maintaining a stable fuel—water mixture, preventing detailed description of the additive components.