An assessment of air emissions from liquefied natural gas ships using different power systems and different fuels.

An assessment of air emissions from liquefied natural gas ships using different power systems and different fuels. Research Abstract Details 

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An assessment of air emissions from liquefied natural gas ships using different power systems and different fuels. Abstract Text:

Yinka Afon,David Ervin,

The shipping industry has been an unrecognized source of criteria pollutants: nitrogen oxides (NOx), volatile organic compounds, coarse particulate matter (PM10), fine particulate matter (PM2.5), sulfur dioxide (SO2), and carbon monoxide (CO). Liquefied natural gas (LNG) has traditionally been transported via steam turbine (ST) ships. Recently, LNG shippers have begun using dual-fuel diesel engines (DFDEs) to propel and offload their cargoes. Both the conventional ST boilers and DFDE are capable of burning a range of fuels, from heavy fuel oil to boil-off-gas (BOG) from the LNG load. In this paper a method for estimating the emissions from ST boilers and DFDEs during LNG offloading operations at berth is presented, along with typical emissions from LNG ships during offloading operations under different scenarios ranging from worst-case fuel oil combustion to the use of shore power. The impact on air quality in nonattainment areas where LNG ships call is discussed. Current and future air pollution control regulations for ocean-going vessels (OGVs) such as LNG ships are also discussed. The objective of this study was to estimate and compare emissions of criteria pollutants from conventional ST and DFDE ships using different fuels. The results of this study suggest that newer DFDE ships have lower SO2 and PM2.5/PM10 emissions, conventional ST ships have lower NOx, volatile organic compound, and CO emissions; and DFDE ships utilizing shore power at berth produce no localized emissions because they draw their required power from the local electric grid.

An assessment of air emissions from liquefied natural gas ships using different power systems and different fuels. Publishing Authors By Initials

Y Afon,D Ervin,

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An assessment of air emissions from liquefied natural gas ships using different power systems and different fuels. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of the Air & Waste Management Association

VOLUME: 58

Page Numbers: 404-11

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ISSN: 1096-2247

DAY: 1

MONTH: Mar

YEAR: 2008

An assessment of air emissions from liquefied natural gas ships using different power systems and different fuels. Information

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LANGUAGE: eng

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AFFILIATION: Environmental Resources Management, Annapolis, MD, USA. adeyinka.afon@erm.com

Country: United States

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MEDLINETA: J Air Waste Manag Assoc

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