Analysis of Pipe Diameter Variation and Lamp Load on Centrifugal Pump Performance as a Generator Driving Turbine
DOI:
https://doi.org/10.21831/jeatech.v6i01.77745Keywords:
Renewable energy, Pump as Turbine, Performance, Pipe Diametre, Load lampAbstract
As the population grows, the demand for energy increases, especially from non-renewable resources. Many countries are turning to renewable energy sources such as water to meet this demand. Water from a certain height can drive a turbine generator by converting potential energy into mechanical energy in the form of shaft rotation, which is transmitted to the generator and then converted into electrical energy. This study aims to analyse variations in pipe diameter and lamp load on the performance of a centrifugal pump as a turbine driving a generator. The research method was an experiment in which the pipe diameter was varied as 1/2, ¾, 1, and 1.5 inches, and the lamp load was varied as 5, 10, 15, and 20 W. Pump performance includes specific speed, rotor power, and shaft power. The results of this study show that the performance of the centrifugal pump as a driving turbine, the highest is at a pipe diameter of 1.5 inches, which produces a specific speed of 207.59 rpm at a power load of 5 W, rotor power of 2002 watts at a load of 20 W, and shaft power of 9509.50 watts at a load of 20 W. By regression analysis, the highest specific speed was obtained by the formula y=223.16-2.9063x with a correlation coefficient of r=0.989. The rotor power formula was y=57.093+98.045x with a correlation coefficient of r=0.999, while the resulting shaft power formula was y=271.19+465.72x with a correlation coefficient of r=0.999. Thus, a strong positive relationship exists between diameter and lamp load on specific speed, rotor power, and shaft power to generate electrical energy sources in turbine axle pumps.
References
D. Adu, J. Zhang, F. Yujian, D. Appiah, and O. Ransford, "Indian Journal of Engineering Performance characteristics of pump-as-turbine for energy generation," vol. 15, 2018.
M. Polák, "Determination of conversion relations for the use of small hydrodynamic pumps in reverse turbine operation," Agron. Res., vol. 16, no. Special Issue 1, pp. 1200–1208, 2018, doi: 10.15159/AR.18.032.
S. Miao, J. Yang, F. Shi, X. Wang, and G. Shi, "Research on energy conversion characteristic of pump as turbine," vol. 10, no. 4, pp. 1–10, 2018, doi: 10.1177/1687814018770836.
Z. Cao, J. Deng, L. Zhao, and L. Lu, "Numerical research of pump-as-turbine performance with synergy analysis," Processes, vol. 9, no. 6, pp. 1–17, 2021, doi: 10.3390/pr9061031.
A. Nasir, E. Dribssa, and M. Girma, "The pump as a turbine: A review on performance prediction, performance improvement, and economic analysis," Heliyon, vol. 10, no. 4, p. e26084, 2024, doi: 10.1016/j.heliyon.2024.e26084.
D. S. Garad, S. Gavali, and P. J. N. Yadav, "The Case Study of Pump as Turbine," vol. 13, no. 5, pp. 15–19, 2018.
M. Kramer, K. Terheiden, and S. Wieprecht, "Pumps as turbines for ef fi cient energy recovery in water supply networks," Renew. Energy, vol. 122, pp. 17–25, 2018, doi: 10.1016/j.renene.2018.01.053.
D. Novara and A. McNabola, "A model for the extrapolation of the characteristic curves of Pumps as Turbines from a datum Best Efficiency Point," Energy Convers. Manag., vol. 174, no. July, pp. 1–7, 2018, doi: 10.1016/j.enconman.2018.07.091.
D. L. Zariatin, D. Seda, and A. Suwandi, "The Improvement of Electrical Power Generated By Pump as Turbine Using Guide Vane," pp. 17–20, 2020.
G. Balacco, "Performance Prediction of a Pump as Turbine : Networks and Evolutionary Polynomial Regression," pp. 1–17, 2018, doi: 10.3390/en11123497.
D. H. Maulud and A. M. Abdulazeez, "A Review on Linear Regression Comprehensive in Machine Learning," vol. 01, no. 02, pp. 140–147, 2021, doi: 10.38094/jastt1457.
K. Kumari, "Linear regression analysis study," no. May, 2018, doi: 10.4103/jpcs.jpcs.
S. Pandey, "Principles of correlation and regression analysis," J. Pract. Cardiovasc. Sci., vol. 6, no. 1, p. 7, 2020, doi: 10.4103/jpcs.jpcs_2_20.
S. Yang et al., "Comparative evaluation of the pump mode and turbine mode performance of a large vaned-voluted centrifugal pump," no. September, pp. 1–17, 2022, doi: 10.3389/fenrg.2022.1003449.
C. C. and X. C. Jianxin Hu, Xianghui Su, Xin Huang, Kexin Wu, Yuzhen Jin, "Hydrodynamic Behavior of a Pump as Turbine under Transient Flow Conditions," Processes, 2022, doi: https://doi.org/10.3390/pr10020408.
O. Le Corre, I. Andri, A. Pina, P. Ferrí£o, J. Fournier, and B. Lacarrière, "Study of a Pump-as-Turbine ( PaT ) speed control for a Water Study of Pump-as-Turbine ( PaT ) control a Water Distribution Network ( WDN ) in South-Tyrol subjected to high Distribution Network ( WDN," Energy Procedia, vol. 148, no. Ati, pp. 226–233, 2018, doi: 10.1016/j.egypro.2018.08.072.
A. Al-imam, "A Novel Method for Computationally Efficacious Linear and Polynomial A Novel Method for Computationally Efficacious Linear and Polynomial Regression Analytics of Big Data in Medicine," no. April, 2020, doi: 10.5539/mas.v14n5p1.
M. Liu, L. Tan, and S. Cao, "Performance Prediction and Geometry Optimization for Application of Pump as Turbine : A Review," vol. 9, no. January, pp. 1–16, 2022, doi: 10.3389/fenrg.2021.818118.
B. S. T. and B. T. N Pokharel, P Sapkota, A Ghimire, "Experimental Analysis of a Centrifugal pump in pump mode and turbine mode," in Symposium on Hydraulic Machinery and Systems, 2022, pp. 1–7, doi: 10.1088/1755-1315/1079/1/012035.
A. L. Fajardo et al., "Performance Evaluation of Centrifugal Pump - As - Turbine For Micro Hydro Applications," no. December, pp. 17–30, 2023.
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