Accession Number:

ADA048431

Title:

U.S. Coast Guard Pollution Abatement Program: Icebreaker Smoke Reduction.

Descriptive Note:

Final interm rept. Nov 74-Nov 75,

Corporate Author:

COLT INDUSTRIES BELOIT WI FAIRBANKS MORSE ENGINE DIV

Personal Author(s):

• Kasel ,E. A.
• Newton,C. L.

Report Date:

1975-11-01

Pagination or Media Count:

117.0

Abstract:

Laboratory tests on an icebreaker configured FM38D8 18 engine have identified methods to reduce excessive smoke emissions without compromising gaseous emissions or fuel economy. Engine test conditions included 1 A test cycle typical of icebreaker operation 2 Constant speed, variable load 3 Constant load, variable speed. Baseline and modified engine tests of smoke, fuel consumption, and gaseous emissions including carbon monoxide, carbon dioxide, total hydrocarbons, oxides of nitrogen and oxygen were conducted. The techniques identified to lower smoke emissions were engine component modifications and operational procedural changes. The former included different style injector nozzles, shimmed injection pumps and improved injection pump tappet to cylinder block seals. The latter included increased engine keep-warm temperatures and minimization of engine idle warm-up times. The conclusions reached in this laboratory study are used to recommend the elements of a field test program and cost-effective methods to reduce Icebreaker smoke. Author

Descriptors:

• *POLLUTION ABATEMENT
• *ICEBREAKERS
• *SMOKE ABATEMENT
• *MARINE ENGINES
• TEST AND EVALUATION
• TEMPERATURE
• ENGINE COMPONENTS
• HYDROCARBONS
• TABLES(DATA)
• CARBON MONOXIDE
• NITROGEN OXIDES
• CHEMICAL ANALYSIS
• ENGINE AIR SYSTEMS COMPONENTS
• ENGINE FUEL SYSTEMS COMPONENTS
• O RINGS
• PISTON RINGS

Subject Categories:

• Marine Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE