Particle laden flows through an inverted chimney with applications to ocean carbon sequestration
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Adams_Particle laden.pdf
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Author(s)
Chow, Aaron C.
Adams, E. Eric
Date Issued
December 2010
Journal
Environmental Fluid Mechanics
Publisher
Springer-Verlag
Citation
Chow, Aaron C., and E. Eric Adams. “Particle Laden Flows through an Inverted Chimney with Applications to Ocean Carbon Sequestration.” Environ Fluid Mech 12, no. 1 (February 2012): 3–21.
Version
Author's final manuscript
Abstract
Plumes of negatively buoyant hydrate particles, formed by reacting liquid CO[subscript 2] with seawater at ocean depths of 1000–1500 m, have been suggested as a way to help sequester CO[subscript 2]. The vertical flux of CO[subscript 2] can be increased by constructing a shroud around the hydrate particle source to shelter the plume from effects of ambient stratification and current. The shroud also serves as an inverted chimney, inducing a down draft that will transport the dissolving particles to a depth of lower ambient disturbance. Laboratory PIV measurements are compared to an analysis of an idealized shroud that is long, frictionless and driven by a single phase source of buoyancy distributed uniformly over the shroud base. Results indicate that induced draft, and hence dilution of dissolved CO[subscript 2], increases with plume buoyancy, and shroud length and diameter, but efficiency decreases with increasing ratio of particle slip velocity divided by the characteristic induced draft velocity. While larger particles show reduced plume-like behavior and hence are less efficient in inducing draft, they still generated about half of the theoretically predicted flow.
MIT Department
Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1007/s10652-010-9200-1
