Image
Transient head rise (high-speed start).
| العنوان: | Transient head rise (high-speed start). |
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| المؤلفون: | Yu-Liang Zhang, Jin-Fu Li, You-Qu Zheng |
| سنة النشر: | 2023 |
| مصطلحات موضوعية: | Biophysics, Evolutionary Biology, Mental Health, Environmental Sciences not elsewhere classified, Biological Sciences not elsewhere classified, deeply explored yet, fastest rising rate, dimensionless flow rate, turbine , flow rate, rise rate, dimensionless analysis, |
| الوصف: | The study on transient characteristics of pump as turbines during atypical startup has not been deeply explored yet. In order to reveal the transient characteristics of a small centrifugal pump reversing as turbine during startup process in this paper, the transient hydraulic performance experiments are conducted for three steady rotational speed cases. Under the condition of each case, three, five and, three valve opening scenarios are completed to measure the performance. The dimensionless analysis are also employed so as to better reveal transient behavior of the pump as turbine during atypical startup. The results show that the rise rate of each performance parameter is different, wherein the shaft power and rotational speed have the fastest rising rate, followed by the flow rate, and the head rise is the slowest. It is clearly seen that the shock phenomenon in static pressure easily occurs at the outlet of pump as turbine. With the increase of valve opening, the dimensionless flow rate, head and, power coefficient all show the evolution trend of gradually increasing. |
| نوع الوثيقة: | still image |
| اللغة: | unknown |
| Relation: | https://figshare.com/articles/figure/Transient_head_rise_high-speed_start_/24642425 |
| DOI: | 10.1371/journal.pone.0294958.g017 |
| الاتاحة: | https://doi.org/10.1371/journal.pone.0294958.g017 https://figshare.com/articles/figure/Transient_head_rise_high-speed_start_/24642425 |
| Rights: | CC BY 4.0 |
| رقم الانضمام: | edsbas.B00F3673 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1371/journal.pone.0294958.g017 |
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