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Although PWR reactors make up the large majority of the world's nuclear power plants, BWR reactors also have a share in this industry. It is difficult to find data on the performance of a BWR power plant in off-design and variable load conditions in the literature. Therefore, the paper presents how cooling water temperature affects the efficiency and power output of a BWR unit. The qualitative effect of changes and the trend related to the effect of cooling water temperature on the performance of the power plant are known, but the quantitative effect has to be determined for specific power units. Depending on the location of the nuclear power plant, various temperatures of cooling water for use in condensers and thus various operating conditions of the cooling system can be achieved. To analyze how cooling water temperature affects the performance of the power unit, a model of a BWR power plant was developed using the Ebsilon software. The model was based on data provided in [1] concerning LaSalle County Nuclear Generating Station. Calculations showed that within the examined range of cooling water temperatures at the condenser inlet between 10 and 28oC the gross power output of the unit decreases by 91.405 MW and the gross efficiency drops by 2.773 percentage points.
Czasopismo
Rocznik
Tom
Strony
5--13
Opis fizyczny
Bibliogr. 21 poz., rys., tab.
Twórcy
autor
- Warsaw University of Technology, Faculty of Power and Aeronautical Engineering, Institute of Heat Engineering, Warsaw, Poland
autor
- Warsaw University of Technology, Faculty of Power and Aeronautical Engineering, Institute of Heat Engineering, Warsaw, Poland
autor
- Warsaw University of Technology, Faculty of Power and Aeronautical Engineering, Institute of Heat Engineering, Warsaw, Poland
Bibliografia
- 1. Dunbar W. R., Moody S. D., Lior N., Exergy analysis of an operating boiling-water-reactor nuclear power station, Energy Conversion and Management, Vol. 36, No. 3, pp. 149 159, (1995).
- 2. Chmielniak T., Energy Technologies (in Polish), WNT Warszawa (2008).
- 3. Laudyn D., Pawlik M., Strzelczyk F., Power plants (in Polish), WNT Warszawa (2009).
- 4. Ganan J., Al-Kassir A. R., Gonzalez J. F., MacIias A., and Diaz M. A., Influence of the cooling circulation water on the efficiency of a thermonuclear plant, Applied Thermal Engineering, vol. 25, no. 4, pp. 485–494, (2005).
- 5. Saari J., Kairko J., Vakkilainen E., Savolainen S., Comparison of power plant steam condenser heat transfer models for on-line condition monitoring, Applied Thermal Engineering 62, 37-47, (2014).
- 6. Vedran Medica-Viola, Branimir Pavković, Vedran Mrzljak, Numerical model for on-condition monitoring of condenser in coal-fired power plants, International Journal of Heat and Mass Transfer, 117, 912-923, (2018).
- 7. Laković M.S., et.al., Impact of the cold end operating conditions on energy efficiency of the steam power plants, Thermal Science, vol. 14, pp. S53-S66, (2010).
- 8. Lalatendu Pattanayak, Biranchi Narayana Padhi Bibhakar Kodamasingh, Thermal performance assessment of steam surface condenser, Case Studies in Thermal Engineering, Volume 14, 100484, September, (2019).
- 9. Laskowski R., Smyk A., Lewandowski J., Rusowicz A., Cooperation of a steam condenser with a low-pressure part of a steam turbine in off-design conditions, American Journal of Energy Research, 3 (1), pp. 13-18, (2015).
- 10. Ahmet Durmayaz and Oguz Salim Sogut, Influence of cooling water temperature on the efficiency of a pressurized-water reactor nuclear-power plant, International Journal of Energy Research,30:799–810, (2006).
- 11. Kubowski J., Nuclear power plants (in Polish), issue II, WNT, Warszawa, (2014).
- 12. Jurkowski R., EPR Circuit -Overview, Framatome, lecture at Institute of Heat Engineering at Warsaw University of Technology, (December 2019).
- 13. Laskowski R., Smyk A., Rusowicz A., Grzebielec A., Selection of cooling water mass flow rate at variable load for 200MW power unit (in Polish), Rynek Energii 3(148), (2020).
- 14.,Durmayaz, H. Yavuz, Exergy analysis of a pressurized-water reactor nuclear-power plant, Applied Energy 69, 39-57, (2001).
- 15. Yali Su, Khurrum Saleem Chaudri, Wenxi Tian, Guanghui Su, Suizheng Qiu, Optimization study for thermal efficiency of supercritical water reactor nuclear power plant, Annals of Nuclear Energy, 63, pp. 541-547, (2014).
- 16. Atria S. I., The influence of condenser cooling water temperature on the thermal efficiency of a nuclear power plant, Annals of Nuclear Energy, Vol. 80, pp. 371-378, (2015).
- 17. Terzia R., Tukenmez I., Kurt E., Energy and exergy analyses of a VVER type nuclear power plant, Int. J. Hydrogen Energy, 41, pp. 12465-12476, (2016).
- 18. Khan H., Islam Md. S., Prediction of thermal efficiency loss in nuclear power plants due to weather conditions in tropical region, Energy Procedia 160, 84-91, (2019).
- 19. Laskowski R., Smyk A., Uzunow N., The influence of cooling water temperature on the performance of a nuclear power plant with an EPR reactor (in Polish), Contemporary issues of thermodynamics, XXIV Zjazd Termodynamików 2020, https://zt2020.pw.edu.pl/monografia/.
- 20. EBSILON Professional, https://www.steag-systemtechnologies.com/en/products/, ebsilon-professional, (2015).
- 21. Oziemski M., Topping Nuclear Power Plants Steam Cycles with Gas Turbines as the Way of Enhancing Their Efficiency, Proc. of the 5th International Conference on Power Generation Systems and Renewable Energy Technologies (PGSRET) 26-27 August, Turkey, (2019).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-13cf5a9d-498e-43eb-be25-bb1cc27cfe09