Masters Theses
Abstract
"The objective of this research was to evaluate an air/fuel separation system known as a Fuel Preporator. The device's efficacy was determined by studying the effect of air entrainment on engine performance and fuel consumption of a General Motors 6.5 L naturally aspirated indirect injection (IDI) diesel engine. A test bed was developed to accommodate the test engine and test methods were adapted from federal regulations for steady-state engine testing (40 CFR 89 Subpart E). Cases of 0%, 5%, 10%, and 20% volumetric air entrainment were investigated for engine operation with and without the Fuel Preporator. Key measured engine performance parameters included fuel consumption, pre-chamber pressure, main cylinder pressure, and injection pressure. Key calculated engine performance parameters included brake specific fuel consumption (BSFC), indicated mean effective pressure (IMEP), and total heat release. The Fuel Preporator did not appear to affect fuel consumption. However, the measurement uncertainty associated with fuel mass flow rate increased with increased entrained air. The injection pressure traces for 0% and 10% entrained air were relatively consistent for engine test cases without the Fuel Preporator. However, the injection pressure trace shifted to the right when entrained air increased to 20%. Introduction of the Fuel Preporator advanced injection timing as much as three crank angle degrees. Furthermore, the injection pressure traces for 0%, 10%, and 20% air entrainment were overlaid. The shift in injection timing propagated to the cylinder pressure traces and also to the heat release rate. Despite the observed shift in injection pressure traces, BSFC, IMEP and total heat release were int influenced by the Fuel Preporator"--Abstract, page iii.
Advisor(s)
Drallmeier, J. A.
Committee Member(s)
Le, Vy Khoi
Flanigan, V. J.
Department(s)
Mechanical and Aerospace Engineering
Degree Name
M.S. in Mechanical Engineering
Sponsor(s)
Missouri University of Science and Technology. Center for Environmental Science and Technology
United States. Department of Defense
Publisher
Missouri University of Science and Technology
Publication Date
Fall 2010
Pagination
xi, 134 pages
Note about bibliography
Includes bibliographical references (page 133).
Rights
© 2010 Michael Ray Hess, All rights reserved.
Document Type
Thesis - Open Access
File Type
text
Language
English
Subject Headings
Diesel motor -- CombustionDiesel motor -- Fuel consumptionInternal combustion enginesMotor vehicles -- Motors (Diesel)Performance -- Testing
Thesis Number
T 9734
Print OCLC #
730940891
Electronic OCLC #
911055726
Recommended Citation
Hess, Michael Ray, "Performance evaluation of a novel diesel fuel air separation and filtration system for an indirect injection diesel engine" (2010). Masters Theses. 124.
https://scholarsmine.mst.edu/masters_theses/124