Mixing and dispersion of pollutants emitted from an outboard motor

Situ, Rong, and Brown, Richard J. (2013) Mixing and dispersion of pollutants emitted from an outboard motor. Marine Pollution Bulletin, 69 (1-2). pp. 19-27.

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DOI: 10.1016/j.marpolbul.2012.12.015

View at Publisher Website: http://dx.doi.org/10.1016/j.marpolbul.20...

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Abstract

This paper quantifies the mixing and dispersion from an outboard motor by field experiments in a small subtropical waterway. Organic dye was used as a surrogate for exhaust emissions and was mixed with uncontaminated creek water before being dispersed into the creek. Dye concentrations were measured with an array of concentration probes stationed in the creek. The data were then processed and fitted with a power law function. The corresponding dispersion constants agreed well with the literature. However, the amplitude was lower than the IMO equation but higher than the correlation from laboratory tests. Results for dye concentration intermittency (presence of dye) are presented for the first time from such field measurements and show significant mixing in-homogeneity.


Item ID:	26134
Item Type:	Article (Research - C1)
ISSN:	1879-3363
Keywords:	four-stroke outboard emissions, mixing, dispersion, emission modeling, outboard pollution, intermittency
Date Deposited:	19 Apr 2013 01:27
FoR Codes:	09 ENGINEERING > 0915 Interdisciplinary Engineering > 091599 Interdisciplinary Engineering not elsewhere classified @ 50% 09 ENGINEERING > 0915 Interdisciplinary Engineering > 091504 Fluidisation and Fluid Mechanics @ 50%
SEO Codes:	88 TRANSPORT > 8802 Water Transport > 880299 Water Transport not elsewhere classified @ 50% 96 ENVIRONMENT > 9609 Land and Water Management > 960903 Coastal and Estuarine Water Management @ 50%
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