Fuel Property Effects on the Cold Startability of Navy High-Speed Diesel Engines.
Interim rept. Nov 83-Dec 85,
SOUTHWEST RESEARCH INST SAN ANTONIO TX BELVOIR FUELS AND LUBRICANTS RESEARCH FACILITY
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In this program, four Navy high-speed diesel engines were tested for startability at 5 C. The engines were Detroit Diesel Allison 4-53T, Detroit Diesel Allison 4-71TI, Cummins NH-220, and Westerbeke 4-108. Initially, starting time versus temperature curves were determined for each engine using a MIL-F-16884H base fuel. Next, starting timed at 5 C were determined for progressively lower ignition quality fuels. The test fuels were obtained by mixing progressively larger volumes of three-cetine fuels with the base fuel. Multiple linear regression analysis was performed using the cranking speed and fuel properties as the independent variables with starting time as the dependent variable. This yielded an equation for each engine that predicts starting time based on fuel properties and cranking speed. Author