Hydrothermal mode of the flowthrough reservoircooler with respect to its morphometric changes
DOI:
https://doi.org/10.15587/1729-4061.2018.128064Keywords:
flow-through reservoir-cooler, silting of a reservoir, water temperature in a catchment water areaAbstract
We carried out hydrothermal investigations of the flow-through reservoir-cooler with running water of the thermal power plant. The purpose of the study was to investigate a degree of silting of the flow-through reservoir-cooler of TPP for the operation period and an effect of morphometric changes of RC on its temperature and temperature of circulating water. The peculiarity of the circulating water supply of this thermal power plant is that two channels carry out the discharge of circulating water into the reservoir ‒ to the tail part of it and to the head part, near the water discharge facility.
The volume of silting of the Dobrotvir reservoir during the operation period is 0.88 million m3, the total volume decreased by 9.6 %. The depths up to 2 m increased by 28 %. The area of the reservoir decreased by 1.56 km2 as a result of silting and overgrowth of coastal water area.
Circulating water in the near water area of its discharge into the reservoir cools by 3‒4 оС, that is, by ≈50 % of the total value. Over the operation period, the near water area became shallow, but this did not affect temperature performance of the reservoir.
We recommended the formula for forecasting a temperature of water discharged from flow-through reservoir to a river, which is important for the summer period. The discharge of circulating water for cooling by two channels ‒ to the upper and to the catchment water area of the flow-through reservoir-cooler increases its active area. It is possible to provide sanitary norms regarding the thermal pollution of the river below the reservoir-cooler by regulation of the discharge of deep layers of water by discharge facility in summer.
The results of research can be useful for operation of reversible systems of technical water supply with reservoirs-coolers. They are important for regulation of redistribution of circulating water of a thermal power plant to a water area of a reservoir-cooler, as well as for operation of their discharge facilities in flow-through reservoirs.
References
- RD 153-34.2-21.144-2003 (SO 34.21.144-2003) Metodicheskie ukazaniya po tekhnologicheskim raschetam vodoemov-ohladiteley (vzamen P-33-75/VNIIG).
- Bosak, M., Misak, Y. (2008). Hydrothermal parameters of the final water area of the reservoirs – coolers of circulating water of power plants. Visnyk Natsionalnoho universytetu «Lvivska politekhnika», 617, 12–16.
- Antonova, L., Kanyuk, G., Mikhayskiy, D., Omelchenko, L., Fokina, A. (2012). Field investigations of the cooling pond. Eastern-European Journal of Enterprise Technologies, 6 (8), 42–47. Available at: http://journals.uran.ua/eejet/article/view/5777/5209
- Raptis C. E., van Vliet M. T. H., Pfister S. (2016). Global thermal pollution of rivers from thermoelectric power plants. Environmental Research Letters, 11 (10), 104011. doi: 10.1088/1748-9326/11/10/104011
- Averyt, K., Fisher, J., Huber-Lee, A., Lewis, A., Macknick, J., Madden, N. et. al. (2011). Freshwater use by U.S. power plants: Electricity’s thirst for a precious resource. A report of the Energy and Water in a Warming World initiative. Cambridge, MA: Union of Concerned Scientists, 62.
- Issakhov, A. (2014). Mathematical Modelling of Thermal Process to Aquatic Environment with Different Hydrometeorological Conditions. The Scientific World Journal, 2014, 1–10. doi: 10.1155/2014/678095
- Substratum Intake System: Once-Through Cooling Hybrid (2008). Power Engineering. Available at: https://www.power-eng.com/articles/print/volume-112/issue-11/features/substratum-intake-system-once-through-cooling-hybrid.html
- Unter pressure, coal utility will retire two limits (2008). Turbomach. Ynt, 49 (5), 12.
- Wurtz, W., Peltier, R. (2008). Air-colled condensers eliminate plant water use. Power, 152 (9), 56.
- Volosukhin, V., Ponomarenko, M. (2011). Optimizaciya parametrov vodohranilishch-ohladiteley GRES. Monitoring. Science and security, 4, 60–71.
- Fricko, O., Parkinson, S. C., Johnson, N., Strubegger, M., Vliet, M. T. van, Riahi, K. (2016). Energy sector water use implications of a 2 °C climate policy. Environmental Research Letters, 11 (3), 034011. doi: 10.1088/1748-9326/11/3/034011
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