Thermal changes in an artificial lake simulated using a one-dimensional numerical model

Date

2017

Author

Yetgin, Mehmet Yücel

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This study focuses on release of high temperature water to still water bodies such as lakes and reservoirs. The numerical study is conducted using one dimensional (1D) finite volume code, PROBE. The effect of high temperature water release, effect of wind over the lake in mixture processes, Coriolis’ effect and solar radiation effect are investigated numerically using different scenarios that are relevant to such events observed in cooling operations of nuclear power plants. Code validation is performed by reproducing natural stratification in a real lake and formation of a thermocline in summer via calibration of light extinction coefficient, solar radiation and wind velocity. The inflow and outflow of water to and from an artificial lake is studied under several scenarios when a thermal stratification exists. Study shows that 1D model is a viable tool in engineering applications when long term results of water withdrawal and release are required to be assessed in a short time during the cooling operation of aforementioned power plants.

Subject Keywords

Thermoclines (Oceanography)., Heat, Mathematical models., Solar radiation., Reservoirs.

URI

http://etd.lib.metu.edu.tr/upload/12621122/index.pdf
https://hdl.handle.net/11511/26578

Collections

Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

M. Y. Yetgin, “Thermal changes in an artificial lake simulated using a one-dimensional numerical model,” M.S. - Master of Science, Middle East Technical University, 2017.