Influence Analysis of Runner Inlet Diameter of Hydraulic Turbine in Turbine Mode with Ultra-Low Specific Speed
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
Influence Analysis of Runner Inlet Diameter of Hydraulic Turbine in Turbine Mode with Ultra-Low Specific Speed
|
|
| Автор |
Chen, J.
Zheng, Y. Zhang, L. Chen, X. Liu, D. Xiao, Z. |
|
| Тематика |
FRANCIS RUNNER
HYDRAULIC TURBINE HYDRAULIC TURBINE IN TURBINE MODE NUMERICAL SIMULATION RUNNER INLET DIAMETER ULTRA-LOW SPECIFIC SPEED FLOW OF WATER FLOW PATTERNS HYDRAULIC TURBINES HYDRAULICS NUMERICAL MODELS RECOVERY FRANCI RUNNER HIGHER EFFICIENCY HYDRAULIC TURBINE IN TURBINE MODE INFLUENCE ANALYSIS LOW SPECIFIC-SPEED PERFORMANCE RUNNER INLET DIAMETER TURBINE MODES ULTRA-LOW SPECIFIC SPEED WATER HEADS HYDRAULIC MOTORS |
|
| Описание |
The hydraulic turbine in turbine mode (HTTM) with an ultra-low specific speed (HTTM-ULSS) has the advantages of a simplified structure, high efficiency, and good stability and has great application value in the industry. However, the influence of the runner inlet diameter (D1) on the performance of HTTM-ULSS has not yet been fully studied. Therefore, the three-dimensional models of Francis runners were established in the ultra-low specific speed range by examining D1 = 0.49 m, 0.5 m, and 0.51 m, and the two-stage hydraulic turbine models were constructed with flow passage components. Then, internal flow and energy characteristics were calculated using Fluent 16.0 software. Further, the influence of D1 on HTTM performance was studied by comparing numerical simulation results. The results show that the water head of the HTTM-ULSS can reach 540.87 m when D1 = 0.51 m, showing its powerful ability to recover the pressure energy in high-pressure water. Moreover, the head and efficiency are closely related to D1; when D1 increases, the circulation at the runner inlet increases, resulting in an enhancement in the ability to recover the water head and decreases in efficiency and in the operating range of the high-efficiency zone; with D1 increasing, the flow pattern inside the runner becomes better, but the high-pressure area of the blade increases. When selecting the D1, attention should not only be paid to the ability to recover the water head but also to the pressure of the runner blades and the internal water flow pattern. © 2023 by the authors.
National Natural Science Foundation of China, NSFC: 51979204, 52309111; Natural Science Foundation of Hubei Province: 2022CFD165; Fundamental Research Funds for the Central Universities: 2042022kf1022 This research was funded by the Hubei Provincial Natural Science Foundation of China (Grant No. 2022CFD165), the Fundamental Research Funds for the Central Universities (Grant No. 2042022kf1022), and the National Natural Science Foundation of China (Grant No. 51979204 and 52309111). |
|
| Дата |
2024-04-05T16:35:05Z
2024-04-05T16:35:05Z 2023 |
|
| Тип |
Article
Journal article (info:eu-repo/semantics/article) |info:eu-repo/semantics/publishedVersion |
|
| Идентификатор |
Chen, J, Zheng, Y, Zhang, L, Chen, X, Liu, D & Xiao, Z 2023, 'Influence Analysis of Runner Inlet Diameter of Hydraulic Turbine in Turbine Mode with Ultra-Low Specific Speed', Energies, Том. 16, № 20, 7086. https://doi.org/10.3390/en16207086
Chen, J., Zheng, Y., Zhang, L., Chen, X., Liu, D., & Xiao, Z. (2023). Influence Analysis of Runner Inlet Diameter of Hydraulic Turbine in Turbine Mode with Ultra-Low Specific Speed. Energies, 16(20), [7086]. https://doi.org/10.3390/en16207086 1996-1073 Final All Open Access, Gold https://www.scopus.com/inward/record.uri?eid=2-s2.0-85175071944&doi=10.3390%2fen16207086&partnerID=40&md5=0fff7f1d817eb17a0fad5d6c20e733ca https://www.mdpi.com/1996-1073/16/20/7086/pdf?version=1697283162 http://elar.urfu.ru/handle/10995/130891 10.3390/en16207086 85175071944 001089980500001 |
|
| Язык |
en
|
|
| Права |
Open access (info:eu-repo/semantics/openAccess)
cc-by https://creativecommons.org/licenses/by/4.0/ |
|
| Формат |
application/pdf
|
|
| Издатель |
Multidisciplinary Digital Publishing Institute (MDPI)
|
|
| Источник |
Energies
Energies |
|