Synfuel modified diesel. Third quarterly progress report, October 1, 1981-December 31, 1981

Technical Report · Thu Jan 01 04:00:00 EST 1981

DOI:https://doi.org/10.2172/5414572· OSTI ID:5414572

Yanmar's effort was directed toward: (1) heat release analysis of SRC-II fuel in a prechamber diesel, and (2) improving the particulate trap to obtain reliable and consistent particulate concentration from a prechamber engine burning SRC-II blend fuel. Yanmar also disassembled the engine to check for excessive wear and deposits; none were found. Komatsu has started to obtain spark assisted data on the baseline engine. Although 100% SRC-II fuel was not attempted, spark assist has made significant contribution to the combustion of 50% SRC-II blend or less. Competitive fuel economy was also obtained with 50% SRC-II blend. Thus, it was shown that spark assist can improve the operating range of blended SRC-II fuel. The major problems are: (1) spark plug cracking, and (2) engine failure due to rough and knocking combustion in the marginal operating range with surface discharge spark plug. The location of the spark plug in the combustion chamber and its timing was found to be quite important. Conventional electrode gap spark will be tried; and if no breakage is encountered, 100% SRC-II fuel will be attempted.

• Research Organization: Cummins Engine Co., Inc., Columbus, IN (USA)
• DOE Contract Number: AC03-79ET15450
• OSTI ID: 5414572
• Report Number(s): DOE/ET/15450-T21; ON: DE82011143
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
CALORIFIC VALUE
CHEMICAL COMPOSITION
CHEMICAL PROPERTIES
COAL LIQUEFACTION
COAL LIQUIDS
COMBUSTION CHAMBERS
COMBUSTION PROPERTIES
DIESEL ENGINES
DIESEL FUELS
DISPERSIONS
ENGINES
ENTHALPY
EXHAUST GASES
FLUIDS
FUELS
GASEOUS WASTES
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
LIQUEFACTION
LIQUIDS
MIXTURES
PARTICLES
PERFORMANCE TESTING
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
REACTION HEAT
SPARK IGNITION ENGINES
SRC-II PROCESS
SYNTHETIC FUELS
TESTING
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
TIME DEPENDENCE
WASTES
WEAR