Economizer water-wall damages initiated by feedwater impurities
2014
Autori
Vidojković, Sonja M.Onjia, Antonije E.
Devečerski, Aleksandar
Grahovac, Nebojša N.
Nastasović, Aleksandra B.
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
The main causes of efficiency loss in thermal power plants are boiler tube failures that diminish unit reliability and availability, and raise the cost of the electric energy. For that reason, the regular examination of boiler tubes is indispensable measure for prevention of future malfunctions of power units. The microscopic examination of economizers inner wall microstructure, the analysis of chemical composition of deposit using X-ray diffraction (XRD) and scanning electron microscopy/energy dispersive spectroscopy (SEM/EDS) have been performed in a subcritical power plant. Stress corrosion cracking, pitting corrosion, destroyed protective magnetite layer, presence of magnetite and hematite in deposit and corrosive impurities within the cracks have indicated the effect of inadequate quality of feedwater that cannot entirely ensure reliable operation of the boiler. It may be stated that maintenance of present boiler does not provide its reliable operation. The extensive chemical cont...rol of water/steam cycle was recommended.
Ključne reči:
boiler tube / deposition / corrosion / feedwater impuritiesIzvor:
Hemijska industrija, 2014, 68, 5, 559-563Finansiranje / projekti:
- Sinteza, procesiranje i karakterizacija nanostrukturnih materijala za primenu u oblasti energije, mehaničkog inženjerstva, zaštite životne stredine i biomedicine (RS-45012)
- Nove tehnologije za monitoring i zaštitu životnog okruženja od štetnih hemijskih supstanci i radijacionog opterećenja (RS-43009)
DOI: 10.2298/HEMIND130715082V
ISSN: 0367-598X; 2217-7426
WoS: 000346394000005
Scopus: 2-s2.0-84922682555
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Vidojković, Sonja M. AU - Onjia, Antonije E. AU - Devečerski, Aleksandar AU - Grahovac, Nebojša N. AU - Nastasović, Aleksandra B. PY - 2014 UR - https://vinar.vin.bg.ac.rs/handle/123456789/294 AB - The main causes of efficiency loss in thermal power plants are boiler tube failures that diminish unit reliability and availability, and raise the cost of the electric energy. For that reason, the regular examination of boiler tubes is indispensable measure for prevention of future malfunctions of power units. The microscopic examination of economizers inner wall microstructure, the analysis of chemical composition of deposit using X-ray diffraction (XRD) and scanning electron microscopy/energy dispersive spectroscopy (SEM/EDS) have been performed in a subcritical power plant. Stress corrosion cracking, pitting corrosion, destroyed protective magnetite layer, presence of magnetite and hematite in deposit and corrosive impurities within the cracks have indicated the effect of inadequate quality of feedwater that cannot entirely ensure reliable operation of the boiler. It may be stated that maintenance of present boiler does not provide its reliable operation. The extensive chemical control of water/steam cycle was recommended. T2 - Hemijska industrija T1 - Economizer water-wall damages initiated by feedwater impurities VL - 68 IS - 5 SP - 559 EP - 563 DO - 10.2298/HEMIND130715082V ER -
@article{ author = "Vidojković, Sonja M. and Onjia, Antonije E. and Devečerski, Aleksandar and Grahovac, Nebojša N. and Nastasović, Aleksandra B.", year = "2014", abstract = "The main causes of efficiency loss in thermal power plants are boiler tube failures that diminish unit reliability and availability, and raise the cost of the electric energy. For that reason, the regular examination of boiler tubes is indispensable measure for prevention of future malfunctions of power units. The microscopic examination of economizers inner wall microstructure, the analysis of chemical composition of deposit using X-ray diffraction (XRD) and scanning electron microscopy/energy dispersive spectroscopy (SEM/EDS) have been performed in a subcritical power plant. Stress corrosion cracking, pitting corrosion, destroyed protective magnetite layer, presence of magnetite and hematite in deposit and corrosive impurities within the cracks have indicated the effect of inadequate quality of feedwater that cannot entirely ensure reliable operation of the boiler. It may be stated that maintenance of present boiler does not provide its reliable operation. The extensive chemical control of water/steam cycle was recommended.", journal = "Hemijska industrija", title = "Economizer water-wall damages initiated by feedwater impurities", volume = "68", number = "5", pages = "559-563", doi = "10.2298/HEMIND130715082V" }
Vidojković, S. M., Onjia, A. E., Devečerski, A., Grahovac, N. N.,& Nastasović, A. B.. (2014). Economizer water-wall damages initiated by feedwater impurities. in Hemijska industrija, 68(5), 559-563. https://doi.org/10.2298/HEMIND130715082V
Vidojković SM, Onjia AE, Devečerski A, Grahovac NN, Nastasović AB. Economizer water-wall damages initiated by feedwater impurities. in Hemijska industrija. 2014;68(5):559-563. doi:10.2298/HEMIND130715082V .
Vidojković, Sonja M., Onjia, Antonije E., Devečerski, Aleksandar, Grahovac, Nebojša N., Nastasović, Aleksandra B., "Economizer water-wall damages initiated by feedwater impurities" in Hemijska industrija, 68, no. 5 (2014):559-563, https://doi.org/10.2298/HEMIND130715082V . .