The public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing the burden, to Department of Defense, Washington Headquarters Services, Directorate for Information Operations and Reports (0704-0188), 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any penalty for failing to comply with a collection of information if it does not display a currently valid 0MB control number. PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ADDRESS. REPORT DATE (DD-MM-YYYY) 15-08-2004REPORT TYPE FINAL TECHNICAL DATES COVERED (From -To)Ol-MAY-98 -31-DEC-Ol- 15510-F102 SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES)Office of Naval Research Regional Office Atlanta 100 Alabama Street NW Suite 4R15 Atlanta, GA 30303-3104 SPONSOR/MONITOR'S ACRONYM(S) ONR SPONSOR/MONITOR'S REPORT NUMBER(S) DISTRIBUTION/AVAILABILITY STATEMENTApproval for Public Release; Distribution is Unlimited SUPPLEMENTARY NOTESThis report is resubmitted because the final report that was not received by ONR in 2002. ABSTRACTThe first of the three parts of this work documents the effort toward the original objective of the grant: understanding how commercial software could be modified to understand the three dimensional thermal and electrochemical gradients in a silver/zinc battery during high rates of discharge. This objective had broad applications for accelerated design of new batteries if we could use the mathematical solvers in commercial software packages because these software packages have automatic grid generation procedures. Unfortunately the state of the art of those software packages in 2000 required extensive custom modification and we concluded that the complex models of battery required too much computation time to be useful for transient behavior of the Ag/Zn system. The second part documents where an understanding of the 3-D transient behavior can be obtained with commercial software modified to account for the electrochemistry. The third part of this report documents the experimental work on transient behavior of fuel cells. In this third part, we were able to demonstrate how complete 3-D models may lead to improved design and oneration. 15510-F102 SPONSORING/MONITORING AGENCY NAME{S) AND ADDRESS(ES)Office of Naval Research Regional Office Atlanta 100 Alabama Street NW Suite 4R15 Atlanta, GA 30303-3104 SPONSOR/MONITOR'S ACRONYM(S) ONR SPONSOR/MONITOR'S REPORT NUMBER(S) DISTRIBUTION/AVAILABILITY STATEMENT Approval for Public Release; Distribution is Unlimited SUPPLEMENTARY NOTESThis report is resubmitted because the final report that was not received by ONR in 2002. ABSTR...
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