Effect of tidal flat on the thermal effluent dispersion from a power plant

Yanagi, Tetsuo; Sugimatsu, Koichi; Shibaki, Hidenori; Shin, Ho‐Sang; Kim, Hong-Sun

doi:10.1029/2004jc002385

Cited by 12 publications

(14 citation statements)

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“…This region is also where the role of heat transfer across the air-sea interface is expected to be greatest, due primarily to the large surface area of the far field plume [Fan and Brown, 2006;Yanagi et al, 2005].…”

Section: Conceptual View Of Plume Structure and Evolutionmentioning

confidence: 99%

Role of mixing in the structure and evolution of a buoyant discharge plume

Chen

MacDonald

2006

J. Geophys. Res.

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[1] A field study to examine the near-field structure of a buoyant discharge plume, and the turbulent mixing associated with its evolution, was conducted in Mount Hope Bay near Somerset, Massachusetts. The study focused on a 50 m 3 /s thermal discharge, approximately 5°C warmer than ambient waters, emanating from an electrical generating facility. The discharge enters the Bay through a 10 m wide surface canal creating a plume that has many attributes in common with larger scale river plumes. At a distance of 200 m, the plume was characterized by a core with high velocity and 2 $ 3°C higher temperature than ambient water. At this location the core of the plume was observed with a width of approximately 150 m during ebb tide, remaining bottom attached along the plume centerline. Analysis of the temperature budget with respect to specific isotherms yielded values of Reynolds temperature flux , on the order of 10 À2°C m/s, suggesting buoyancy flux values (B = ga) of order 10 À5 m 2 /s 3 . These values are consistent with the turbulent energy expected to enter the system as a result of bottom stress, implying that mixing across the first 200 m is driven by bottom friction and is most active along the edges of the plume where thermal gradients are strong. The industrial plume studied here is dynamically similar to larger geophysical plumes, such as river plumes. However, the aspect ratio is critical in determining whether mixing driven by bottom friction is important in the overall evolution of the plume.Citation: Chen, F., and D. G. MacDonald (2006), Role of mixing in the structure and evolution of a buoyant discharge plume,

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Section: Conceptual View Of Plume Structure and Evolutionmentioning

confidence: 99%

Role of mixing in the structure and evolution of a buoyant discharge plume

Chen

MacDonald

2006

J. Geophys. Res.

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“…The surface sediment temperature changes dramatically during the exposure of a tidal flat due to heat exchange with the atmosphere [Kim et al, 2007;Kim and Cho, 2009;Thomson, 2010]. The features of the seawater temperature variation in the tidal flat region are very complex due to heat exchange with the tidal flat and atmosphere [Choi et al, 2002;Yanagi et al, 2005]. The horizontal differences in the seawater temperature and seawater movement due to the tide cause spatial variability in the heat exchange between seawater and the bottom sediment in a coastal region.…”

Section: Introductionmentioning

confidence: 99%

“…The results of a spectral analysis of the observed SST on the west coast of Korea showed semidiurnal variation due to heat exchange with the tidal flat [Choi et al, 2002]. Yanagi et al [2005] predicted the seawater temperature using the ocean numerical model, which considers the heat exchange between seawater and the tidal flat. Our previous study reported the effect of the tidal flat on the variability in the seawater temperature using the one-dimensional temperature prediction model on the western coast of Korea [Kim et al, 2010].…”

Section: Introductionmentioning

confidence: 99%

Calculation of heat flux in a macrotidal flat using FVCOM

Kim

Cho

2011

J. Geophys. Res.

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[1] To understand the effect of a tidal flat on the seawater temperature near a macrotidal flat, the heat flux was calculated using the unstructured grid, finite-volume coastal ocean model (FVCOM). For this study, a code for calculating the sediment temperature was added to include the heat exchange between seawater and the seabed. Seawater provides heat to the seabed at the intertidal zone (tidal flat) during the morning flood tide and gains heat from the seabed during the afternoon flood tide. The seawater heated by the atmosphere and seabed at the intertidal zone supplies heat to the sublittoral zone during spring, summer, and winter, but vice versa in autumn. The maximum heat supplied from the intertidal zone to the sublittoral zone was 13.85 × 10 6 GJ in

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“…According to their results, the occurrence of both strong coastal currents and winds during the winter and summer monsoons often results in a high rate of thermal dispersion. Yanagi et al (2005) took field observations for one month in spring 2003, under conditions of spring tides and fine weather, and performed 3d numerical modeling on the HNPP. Because of the limited data sampling, they found that the computed isotherm contours ran parallel to the coastline.…”

Section: Introductionmentioning

confidence: 99%

Massive cooling water dispersion behavior in a shallow macro-tidal coastal zone in Korea

Suh

2014

Journal of Coastal Research

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Effect of tidal flat on the thermal effluent dispersion from a power plant

Cited by 12 publications

References 1 publication

Role of mixing in the structure and evolution of a buoyant discharge plume

Role of mixing in the structure and evolution of a buoyant discharge plume

Calculation of heat flux in a macrotidal flat using FVCOM

Massive cooling water dispersion behavior in a shallow macro-tidal coastal zone in Korea

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