Accession Number : ADA299563

Title :   Determination of Naval Medium Speed Diesel Engine Air Exhaust Emissions and Validation of a Proposed Estimation Model.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL ACADEMY ANNAPOLIS MD

Personal Author(s) : Mayeaux, Agnes M.

PDF Url : ADA299563

Report Date : MAY 1995

Pagination or Media Count : 196

Abstract : Steady state marine diesel engine exhaust emissions are being reviewed by the Environmental Protection Agency for possible regulation. In anticipation of future regulation, the United States Navy is developing appropriate emissions models for naval vessels. Actual emissions data from a U.S. Navy ship is necessary to provide checkpoints for the models. A procedure for collecting this data from an U. S. Navy ship with medium speed main propulsion diesels is presented. It is based on similar testing conducted by the U.S. Coast Guard for measuring patrol boat diesel engine emissions and International Standards Organization methodology. The primary challenge of the experiment design was to minimize interference with the engineering plant as the assigned ship was concurrently tasked for other operations. Data gathered allowed calculation of engine rpm, engine load, exhaust gas flow rate and determination of pollutant amounts. The tests were conducted at a series of predetermined speeds to reflect an 11-Mode duty cycle developed previously for the LSD 41 Class propulsion diesel engines. The results add to a growing data base of marine emissions and offer insight into the into the effects of secondary control factors such as sea conditions, maneuvering and continued reactions in the stack.

Descriptors :   *DIESEL ENGINES, *AIR POLLUTION, *NAVAL VESSELS(COMBATANT), *MARINE PROPULSION, *EXHAUST GASES, VELOCITY, DATA BASES, MATHEMATICAL MODELS, MINE COUNTERMEASURES, AIR FLOW, THESES, ESTIMATES, ENVIRONMENTAL IMPACT, NAVAL OPERATIONS, POLLUTANTS, AIR QUALITY, NITROGEN OXIDES, ENVIRONMENTAL PROTECTION, SHIP MODELS, AIR WATER INTERACTIONS, SEA STATES, EMISSION CONTROL, SHIP HULLS, GAS FLOW, UNDERWATER MINES, AMPHIBIOUS SHIPS.

Subject Categories : Marine Engineering
      Reciprocating and Rotating Engines
      Air Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE