Author:
Chen Xueqing,Guo Yuxing,Zhu Guojun
Abstract
Abstract
Pelton turbine can not only utilize the high head hydraulic resources but also recover the flow kinetic energy in the pipeline. It is more and more widely used. Thus, the research on improving the efficiency and performance of Pelton turbine is important. In this paper, Boltzmann method is used to study the influence of different runner widths on the performance of a micro Pelton turbine. And two micro Pelton turbines with runner widths of 25mm and 20mm are taken as the research object. Then turbine efficiency is calculated and the internal flow characteristics of micro Pelton turbine are analyzed. The results show that the runner width has obvious influence on the efficiency. When the runner width decreases from 25mm to 20mm, the turbine efficiency decreases by 1.16%. Besides, the turbulence area in the runner decreases, and the velocity decreases. But the turbulence intensity and vorticity in the runner is enhanced, which causes more serious hydraulic loss.
Subject
Computer Science Applications,History,Education
Reference17 articles.
1. Effect of Flow Parameters on Pelton Turbine Performance by Using Different Nozzles[J];Saif;International Journal of Modeling and Optimization,2017
2. Performance of Pelton Turbine for Hydroelectric Generation in Varying Design Parameters;Kholifah;IOP Conference Series: Materials Science and Engineering,2018
3. Performance Test of Pelton Micro-Hydro Turbine with the Variations of Parameter to Produce the Maximum Output Power[J];Okdinata;Journal of Physics: Conference Series,2019
4. Parametric Optimization & Design of Pelton Turbine Wheel for Hydraulic Efficiency Improvement;Shah,2021
5. Generation of electric energy using natural water affluent through the design of a pelton turbine prototype[J];Reynaldo,2020