Spray ignition experiments for biodiesel surrogates

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Authors
Hotard, Carson
Issue Date
2016-05
Type
Electronic thesis
Thesis
Language
ENG
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Mechanical engineering
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Abstract
This report documents the experimental and numerical work conducted in determining the combustion characteristics of C9 and C10 esters as surrogates for modern biodiesel fuels (BDFs). A novel instrumented constant volume combustion chamber (CVCC) is used to collect data for spray combustion of the fuels. Four distinct straight chain esters are tested: methyl decanoate, ethyl nonanoate, methyl 9-decenoate, and methyl 5-decenoate. Fuel is injected into the CVCC containing air at ambient pressures of 21.4 bar and 40 bar and temperatures ranging from 623 K to 818 K. The injector fuel pressure and chamber pressure are measured during injection, ignition, and combustion. These signals are used to determine the time of injector opening and closing, as well as completion of atomization, onset of combustion (ignition), and energy release history during combustion.
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May 2016
School of Engineering
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Rensselaer Polytechnic Institute, Troy, NY
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