Durability testing of a diesel fuel, methyl tallowate, and ethanol blend in a Cummins N14-410 diesel engine

Journal Article · Wed May 01 04:00:00 EDT 1996 · Transactions of the ASAE

DOI:https://doi.org/10.13031/2013.27562· OSTI ID:447248

Ali, Y; Hanna, M A ^[1]

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1. Univ. of Nebraska, Lincoln, NE (United States)

A Cummins N14-410 diesel engine was operated on an 80:13:7% (v/v) blend of diesel fuel: methyl tallowate: ethanol. The standard 200-h Engine Manufacturers Association (EMA) test procedure was followed to test engine durability. Engine performance was evaluated in terms of power produced at rated speed, peak torque produced at a speed of 1200 rpm, and brake specific fuel consumption at both speeds. Engine exhaust emissions analyses were performed, and the engine oil was analyzed for accumulation of heavy metals at 45 h intervals. It was observed that engine performance was satisfactory for 148 h at which time the injector in cylinder 2 failed. The injector was changed, and after an additional 11 h (159 h total) of operation the injector in cylinder 5 failed. That injector was also replaced, and the 200-h procedure was continued. The test was discontinued after 197 h when the supply of the fuel blend was exhausted. The injectors were removed and the injector in cylinder 1 was observed to be coked. This injector was sent to the Cummins Engine Co. for analysis. It was found that failure of this injector was not because of the fuel used, but because of a crack had developed across the tip due to an excessively tight overhead adjustment. Engine oil analyses performed for accumulation of wear metals did not reveal any excessive wear on the engine parts. 12 refs., 4 figs., 3 tabs.

• Sponsoring Organization: USDOE
• OSTI ID: 447248
• Journal Information: Transactions of the ASAE, Journal Name: Transactions of the ASAE Journal Issue: 3 Vol. 39; ISSN 0001-2351; ISSN TAAEAJ
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
DIESEL ENGINES
DIESEL FUELS
ETHANOL FUELS
EXHAUST GASES
FUEL CONSUMPTION
LUBRICATING OILS
METHANOL
NUMERICAL DATA
PERFORMANCE
TESTING
TORQUE
VISCOSITY