IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 34th Congress - Brisbane (2011) : THEME 5: Environmental Hydraulics and Hydrology : A 3d numerical model to evaluate the effect of shutting down a once-through cooling system on the ic...
A 3d numerical model to evaluate the effect of shutting down a once-through cooling system on the ice transport to existing intakes
Author : Yushi Wang1, Marcela Politano1, Marian Muste1, Jeff Stallings2 and Frank Michell3
American Electrical Power’s Conesville Power Plant is shutting down the last unit using once-through cooling system. Currently, a portion of the hot water from the existing system is routed to the intake area to control ice buildup. After the last once-through unit is shutdown there will be no possibility of control ice buildup in the trash racks. Fully 3D numerical simulations are performed to evaluate the potential of intake blockage by ice after shutting down the unit. The model predicts the hydrodynamics in the Muskingum River near the power plant. A particle tracking model is used to compute the movement of frazil and pulverized ice particles through the river. The effect of fluid turbulence upon particle dispersion is taken into consideration through a stochastic approach. The model accounts for the drag force in addition to the gravitational effect. An ice size distribution is injected into the domain to evaluate the accumulation of different floe sizes in the intakes. Possible mitigation measures are presented and analyzed.
File Size : 1,246,473 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 5: Environmental Hydraulics and Hydrology
Date Published : 01/07/2011
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