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TI - Analysis of Commercial Marine Vessels Emissions and Fuel Consumption Data
AU - US Environmental Protection Agency (EPA)
AB - The EPA is initiating a review of its guidance on developing emission inventories for ocean-going and harbor vessels operating at port areas. The current methodology, as defined in AP-42, is based on a three step calculation. The first step apportions the time spent by a vessel in a port area to different operating modes. The second calculates fuel consumption in each operating mode. The third step calculates emissions using fuel consumption specific emission factors, which is how marine engine emission factors have been historically specified. All of these calculations are by vessel type and class, with the type specifying whether the vessel is a tanker, passenger liner, etc, and the class specifying either the weight or horsepower range. In this work assignment, the EPA did not require a literature review, but instead provided with nine reports as the basis for this review. Due to the fact that data on emissions from gas turbines were restricted to two engines, most of the analysis presented in this report pertains only to diesel powered marine vessels and only an average emission rate for the gas turbines is presented. Section 2 of this report presents the findings of our literature review of the nine reports provided by EPA. Section 3 details our analysis of emissions data contained in reports, and the resultant derivation of emission factors. Section 4 provides an analysis of vessel classifications and 1-2 horsepower to vessel weight relationships. Section 5 summarizes the resultant emission factors by vessel type, and operating mode.
DA - 2000/02//
PY - 2000
SP - 158
SN - EPA420-R-00-002
UR - https://nepis.epa.gov/Exe/ZyNET.exe/P1009Z2K.txt?ZyActionD=ZyDocument&Client=EPA&Index=2000%20Thru%202005&Docs&Query&Time&EndTime&SearchMethod=1&TocRestrict=n&Toc&TocEntry&QField&QFieldYear&QFieldMonth&QFieldDay&UseQField&IntQFieldOp=0&ExtQFieldOp=0&XmlQuery&File=D%3A%5CZYFILES%5CINDEX%20DATA%5C00THRU05%5CTXT%5C00000027%5CP1009Z2K.txt&User=ANONYMOUS&Password=anonymous&SortMethod=h%7C-&MaximumDocuments=1&FuzzyDegree=0&ImageQuality=r75g8/r75g8/x150y150g16/i425&Display=hpfr&DefSeekPage&SearchBack=ZyActionL&Back=ZyActionS&BackDesc=Results%20page&MaximumPages=1&ZyEntry=2
LA - English
KW - Heavy Fuel Oil (HFO)
KW - Comparative and Meta Studies
KW - Engine Testing and Performance
KW - Lifecycle Assessment (LCA) and Air Emissions
KW - Ocean-going Vessels
ER -
Abstract
The EPA is initiating a review of its guidance on developing emission inventories for ocean-going and harbor vessels operating at port areas. The current methodology, as defined in AP-42, is based on a three step calculation. The first step apportions the time spent by a vessel in a port area to different operating modes. The second calculates fuel consumption in each operating mode. The third step calculates emissions using fuel consumption specific emission factors, which is how marine engine emission factors have been historically specified. All of these calculations are by vessel type and class, with the type specifying whether the vessel is a tanker, passenger liner, etc, and the class specifying either the weight or horsepower range. In this work assignment, the EPA did not require a literature review, but instead provided with nine reports as the basis for this review. Due to the fact that data on emissions from gas turbines were restricted to two engines, most of the analysis presented in this report pertains only to diesel powered marine vessels and only an average emission rate for the gas turbines is presented. Section 2 of this report presents the findings of our literature review of the nine reports provided by EPA. Section 3 details our analysis of emissions data contained in reports, and the resultant derivation of emission factors. Section 4 provides an analysis of vessel classifications and 1-2 horsepower to vessel weight relationships. Section 5 summarizes the resultant emission factors by vessel type, and operating mode.