Turbulence recognition in free convective flow by thermal-video post-processing in the case of a thermal power plant mill
Апстракт
This paper presents a study of a free convection flow around the walls of a ventilation mill of the Thermal Power Plant "Kostolac B", Kostolac, Serbia. A combined method consists of thermography and software post-processing, PATS. The PATS is specially developed for recognition of turbulence zones by the custom processing of large input data sets from thermal videos. The calculations determine maximum temperature fluctuation i.e. peak-to-peak fluctuation at every spot during the recording time. Three thermal videos of the walls were analyzed. Maximum temperature fluctuation occurred in the zones close to the obstacles, which are thus recognized as one of the main sources of turbulence. Besides, PATS has recognized fine camera oscillations and mechanical movements of a flexible material near the dozer wall. The detected zones of turbulence correspond to the previous studies and to the theory. The method shows good potential in the field of free convective flow research through the impro...vement of testing efficiency and cost savings. State-of-the-art thermograph cameras and updated software are recommended.
Кључне речи:
turbulence / thermography / post-processing / convectionИзвор:
Thermal Science, 2021, 25, 4, 2447-2458Издавач:
- Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200026 (Универзитет у Београду, Институт за хемију, технологију и металургију - ИХТМ) (RS-MESTD-inst-2020-200026)
- University of Belgrade, Innovation Center of the Faculty of Mechanical Engineering
- University of Belgrade, Institute of cChemistry, Tehnology, and Metallurgy, IHTM
- Gosa Institute d.o.o., Belgrade
- TPP "Kostolac", Kostolac, Serbia
DOI: 10.2298/TSCI200907341L
ISSN: 0354-9836
WoS: 000680669700004
Scopus: 2-s2.0-85111525033
Институција/група
Inovacioni centarTY - JOUR AU - Linić, Suzana AU - Linić, Mihajlo S. AU - Radojković, Bojana M. AU - Ristić, Slavica S. AU - Jegdić, Bore PY - 2021 UR - https://machinery.mas.bg.ac.rs/handle/123456789/3560 AB - This paper presents a study of a free convection flow around the walls of a ventilation mill of the Thermal Power Plant "Kostolac B", Kostolac, Serbia. A combined method consists of thermography and software post-processing, PATS. The PATS is specially developed for recognition of turbulence zones by the custom processing of large input data sets from thermal videos. The calculations determine maximum temperature fluctuation i.e. peak-to-peak fluctuation at every spot during the recording time. Three thermal videos of the walls were analyzed. Maximum temperature fluctuation occurred in the zones close to the obstacles, which are thus recognized as one of the main sources of turbulence. Besides, PATS has recognized fine camera oscillations and mechanical movements of a flexible material near the dozer wall. The detected zones of turbulence correspond to the previous studies and to the theory. The method shows good potential in the field of free convective flow research through the improvement of testing efficiency and cost savings. State-of-the-art thermograph cameras and updated software are recommended. PB - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd T2 - Thermal Science T1 - Turbulence recognition in free convective flow by thermal-video post-processing in the case of a thermal power plant mill EP - 2458 IS - 4 SP - 2447 VL - 25 DO - 10.2298/TSCI200907341L ER -
@article{ author = "Linić, Suzana and Linić, Mihajlo S. and Radojković, Bojana M. and Ristić, Slavica S. and Jegdić, Bore", year = "2021", abstract = "This paper presents a study of a free convection flow around the walls of a ventilation mill of the Thermal Power Plant "Kostolac B", Kostolac, Serbia. A combined method consists of thermography and software post-processing, PATS. The PATS is specially developed for recognition of turbulence zones by the custom processing of large input data sets from thermal videos. The calculations determine maximum temperature fluctuation i.e. peak-to-peak fluctuation at every spot during the recording time. Three thermal videos of the walls were analyzed. Maximum temperature fluctuation occurred in the zones close to the obstacles, which are thus recognized as one of the main sources of turbulence. Besides, PATS has recognized fine camera oscillations and mechanical movements of a flexible material near the dozer wall. The detected zones of turbulence correspond to the previous studies and to the theory. The method shows good potential in the field of free convective flow research through the improvement of testing efficiency and cost savings. State-of-the-art thermograph cameras and updated software are recommended.", publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd", journal = "Thermal Science", title = "Turbulence recognition in free convective flow by thermal-video post-processing in the case of a thermal power plant mill", pages = "2458-2447", number = "4", volume = "25", doi = "10.2298/TSCI200907341L" }
Linić, S., Linić, M. S., Radojković, B. M., Ristić, S. S.,& Jegdić, B.. (2021). Turbulence recognition in free convective flow by thermal-video post-processing in the case of a thermal power plant mill. in Thermal Science Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 25(4), 2447-2458. https://doi.org/10.2298/TSCI200907341L
Linić S, Linić MS, Radojković BM, Ristić SS, Jegdić B. Turbulence recognition in free convective flow by thermal-video post-processing in the case of a thermal power plant mill. in Thermal Science. 2021;25(4):2447-2458. doi:10.2298/TSCI200907341L .
Linić, Suzana, Linić, Mihajlo S., Radojković, Bojana M., Ristić, Slavica S., Jegdić, Bore, "Turbulence recognition in free convective flow by thermal-video post-processing in the case of a thermal power plant mill" in Thermal Science, 25, no. 4 (2021):2447-2458, https://doi.org/10.2298/TSCI200907341L . .