A Novel Approach to the Improvement of the Hydropower Plants Protective Measures-Modelling and Numerical Analyses of the Semi-Pneumatic Surge Tank
Апстракт
Featured Application The newly developed model provides better understanding of the semi-pneumatic surge tanks and methods of application for the building and the refurbishment of the hydropower plant which is relatively simple, readily applicable and an inexpensive solution. Adopting adequate operational and safety measures is a significant part of the investigation of transient processes of hydropower plants (HPPs), both throughout the design stage of prospective plants and throughout the planning stage of the HPPs envisaged for refurbishment/uprating. One of the surge tank (ST) types, insufficiently researched so far, with a potential positive techno-economical influence, is the semi-pneumatic surge tank (SPST). Since the detailed analyses of SPST have never been performed or published before, the SPSTs have been examined here by presenting theoretical considerations, a newly developed mathematical model and comprehensive numerical simulations. The aim is to improve the performance ...of the open-air variations of STs. Multiple numerical simulations for a specific case-study HPP have been performed with the conclusions about the peculiarities and benefits of the SPST implementation. Firstly, numerical results for the existing as-built surge tank and corresponding alternative SPST have been compared, in order to verify the developed model. Variations of the main SPST constructive parameters have been analyzed, with the aim to determine the sensitivity of particular influences on transient processes versus its geometry alterations. The conducted analyses show that the SPST application brings HPP transient behaviour improvement compared to open-air ST. Dimensions of the new surge tank with specific aeration orifice could be smaller than the ones previously defined: both the diameter of the optimized upper and lower chamber and the core could be decreased by 20% and 12.5%, respectively.
Кључне речи:
water-mass oscillations / water hammer / semi-pneumatic surge tanks / optimal operation / mathematical modelling / hydraulic transientsИзвор:
Applied Sciences-Basel, 2022, 12, 5Издавач:
- MDPI, Basel
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200105 (Универзитет у Београду, Машински факултет) (RS-MESTD-inst-2020-200105)
- Ministry of Science of Montenegro
DOI: 10.3390/app12052353
ISSN: 2076-3417
WoS: 000771144300001
Scopus: 2-s2.0-85125381850
Колекције
Институција/група
Mašinski fakultetTY - JOUR AU - Ilić, Jovan AU - Božić, Ivan AU - Petković, Aleksandar AU - Karadzić, Uroš PY - 2022 UR - https://machinery.mas.bg.ac.rs/handle/123456789/3776 AB - Featured Application The newly developed model provides better understanding of the semi-pneumatic surge tanks and methods of application for the building and the refurbishment of the hydropower plant which is relatively simple, readily applicable and an inexpensive solution. Adopting adequate operational and safety measures is a significant part of the investigation of transient processes of hydropower plants (HPPs), both throughout the design stage of prospective plants and throughout the planning stage of the HPPs envisaged for refurbishment/uprating. One of the surge tank (ST) types, insufficiently researched so far, with a potential positive techno-economical influence, is the semi-pneumatic surge tank (SPST). Since the detailed analyses of SPST have never been performed or published before, the SPSTs have been examined here by presenting theoretical considerations, a newly developed mathematical model and comprehensive numerical simulations. The aim is to improve the performance of the open-air variations of STs. Multiple numerical simulations for a specific case-study HPP have been performed with the conclusions about the peculiarities and benefits of the SPST implementation. Firstly, numerical results for the existing as-built surge tank and corresponding alternative SPST have been compared, in order to verify the developed model. Variations of the main SPST constructive parameters have been analyzed, with the aim to determine the sensitivity of particular influences on transient processes versus its geometry alterations. The conducted analyses show that the SPST application brings HPP transient behaviour improvement compared to open-air ST. Dimensions of the new surge tank with specific aeration orifice could be smaller than the ones previously defined: both the diameter of the optimized upper and lower chamber and the core could be decreased by 20% and 12.5%, respectively. PB - MDPI, Basel T2 - Applied Sciences-Basel T1 - A Novel Approach to the Improvement of the Hydropower Plants Protective Measures-Modelling and Numerical Analyses of the Semi-Pneumatic Surge Tank IS - 5 VL - 12 DO - 10.3390/app12052353 ER -
@article{ author = "Ilić, Jovan and Božić, Ivan and Petković, Aleksandar and Karadzić, Uroš", year = "2022", abstract = "Featured Application The newly developed model provides better understanding of the semi-pneumatic surge tanks and methods of application for the building and the refurbishment of the hydropower plant which is relatively simple, readily applicable and an inexpensive solution. Adopting adequate operational and safety measures is a significant part of the investigation of transient processes of hydropower plants (HPPs), both throughout the design stage of prospective plants and throughout the planning stage of the HPPs envisaged for refurbishment/uprating. One of the surge tank (ST) types, insufficiently researched so far, with a potential positive techno-economical influence, is the semi-pneumatic surge tank (SPST). Since the detailed analyses of SPST have never been performed or published before, the SPSTs have been examined here by presenting theoretical considerations, a newly developed mathematical model and comprehensive numerical simulations. The aim is to improve the performance of the open-air variations of STs. Multiple numerical simulations for a specific case-study HPP have been performed with the conclusions about the peculiarities and benefits of the SPST implementation. Firstly, numerical results for the existing as-built surge tank and corresponding alternative SPST have been compared, in order to verify the developed model. Variations of the main SPST constructive parameters have been analyzed, with the aim to determine the sensitivity of particular influences on transient processes versus its geometry alterations. The conducted analyses show that the SPST application brings HPP transient behaviour improvement compared to open-air ST. Dimensions of the new surge tank with specific aeration orifice could be smaller than the ones previously defined: both the diameter of the optimized upper and lower chamber and the core could be decreased by 20% and 12.5%, respectively.", publisher = "MDPI, Basel", journal = "Applied Sciences-Basel", title = "A Novel Approach to the Improvement of the Hydropower Plants Protective Measures-Modelling and Numerical Analyses of the Semi-Pneumatic Surge Tank", number = "5", volume = "12", doi = "10.3390/app12052353" }
Ilić, J., Božić, I., Petković, A.,& Karadzić, U.. (2022). A Novel Approach to the Improvement of the Hydropower Plants Protective Measures-Modelling and Numerical Analyses of the Semi-Pneumatic Surge Tank. in Applied Sciences-Basel MDPI, Basel., 12(5). https://doi.org/10.3390/app12052353
Ilić J, Božić I, Petković A, Karadzić U. A Novel Approach to the Improvement of the Hydropower Plants Protective Measures-Modelling and Numerical Analyses of the Semi-Pneumatic Surge Tank. in Applied Sciences-Basel. 2022;12(5). doi:10.3390/app12052353 .
Ilić, Jovan, Božić, Ivan, Petković, Aleksandar, Karadzić, Uroš, "A Novel Approach to the Improvement of the Hydropower Plants Protective Measures-Modelling and Numerical Analyses of the Semi-Pneumatic Surge Tank" in Applied Sciences-Basel, 12, no. 5 (2022), https://doi.org/10.3390/app12052353 . .