Smart Design and Development of a Small Hydropower System and Exploitation of Locally Sourced Material for Pelton Turbine Bucket Production

2017 ◽  
Vol 43 (2) ◽  
pp. 291-314 ◽  
Author(s):  
Williams S. Ebhota ◽  
Freddie L. Inambao
Keyword(s):  
Design And Development ◽  
Small Hydropower ◽  
Pelton Turbine ◽  
Hydropower System ◽  
Turbine Bucket

scholarly journals Flow in a Pelton Turbine Bucket: Numerical and Experimental Investigations

2005 ◽  
Vol 128 (2) ◽  
pp. 350-358 ◽  
Author(s):  
Alexandre Perrig ◽  
François Avellan ◽  
Jean-Louis Kueny ◽  
Mohamed Farhat ◽  
Etienne Parkinson
Keyword(s):  
Homogeneous Model ◽  
Free Surface Flow ◽  
Flow Patterns ◽  
Surface Flow ◽  
Experimental Investigations ◽  
Pressure Measurements ◽  
Two Phase ◽  
Pelton Turbine ◽  
Flow Visualizations ◽  
Turbine Bucket

The aim of the paper is to present the results of investigations conducted on the free surface flow in a Pelton turbine model bucket. Unsteady numerical simulations, based on the two-phase homogeneous model, are performed together with wall pressure measurements and flow visualizations. The results obtained allow defining five distinct zones in the bucket from the flow patterns and the pressure signal shapes. The results provided by the numerical simulation are compared for each zone. The flow patterns in the buckets are analyzed from the results. An investigation of the momentum transfer between the water particles and the bucket is performed, showing the regions of the bucket surface that contribute the most to the torque. The study is also conducted for the backside of the bucket, evidencing a probable Coanda interaction between the bucket cutout area and the water jet.

scholarly journals A review on erosion of a Pelton turbine bucket

2020 ◽  
Vol 1706 ◽  
pp. 012194
Author(s):  
H A Shah ◽  
G C Chaudhari ◽  
V D Dhiman ◽  
F S Ansari ◽  
M N Pathak
Keyword(s):  
Pelton Turbine ◽  
Turbine Bucket

scholarly journals Dynamic Economic Dispatch in Thermal-Wind-Small Hydropower Generation System

2018 ◽  
Vol 246 ◽  
pp. 01085
Author(s):  
Guangbiao Liu ◽  
Jianzhong Zhou ◽  
Xiaogang Xiao ◽  
Li Mo ◽  
Yang Yuqi ◽  
...  
Keyword(s):  
Differential Evolution ◽  
Wind Power ◽  
Economic Dispatch ◽  
Differential Evolution Algorithm ◽  
Small Hydropower ◽  
Hydro Power ◽  
Thermal Wind ◽  
Hydropower System ◽  
Evolution Algorithm ◽  
Dynamic Economic Dispatch

With the large-scale wind power integration, the uncertainty of wind power poses a great threat to the safe and stable operation of the system. This paper proposes dynamic economic dispatch problem formulation in thermal power system incorporating stochastic wind and small-hydro (run-in-river) power, called thermal-wind-small hydropower system (TWSHS). Weibull and Gumbel probability density functions are used to calculate available wind and small-hydro power respectively. An improved differential evolution algorithm based on gradient descent information (DE-GD) is proposed to solve the dynamic economic dispatch (DED) problem considering uncertainty of wind power and small-hydro power, as well as complicated constraints in TWSHS. Based on the traditional differential evolution algorithm, the gradient information of the objective function is introduced after the mutation process to enrich the diversity of the population, thus increasing the possibility of convergence to the global optimization. Generation scheduling is simulated on a TWSHS with the proposed approach. Simulation results verify feasibility and effectiveness of the proposed method while considering various complex constraints in the thermal-windsmall hydropower system.

scholarly journals Feasibility Evaluation of Micro-Hydropower System Generation for Different Types of Sewage Treatment Plants

2019 ◽  
Vol 8 (4) ◽  
pp. 6338-6341
Keyword(s):  
Water Flow ◽  
Flow Rate ◽  
Sewage Treatment ◽  
Small Scale ◽  
Small Hydropower ◽  
Discharge Flow ◽  
Sewage Treatment Plants ◽  
Discharge Flow Rate ◽  
Hydropower System ◽  
Effluent Discharge

Small scale hydropower is among the most attractive and cost-effective sustainable energy technologies available, by harnessing electricity through moving water. Naturally, moving water can be found in rivers and also man-man conduits where there is a continuous water flow. The sewage treatment facility has continuous water flow at the effluent pipe that can generate electricity by means of small-hydropower system. However, there are no sewage treatment plants (STP) in Malaysia that reclaim the energy through the usage of water turbines. This study is conducted to evaluate the feasibility of a micro-hydropower (MHP) system at the continuous flow of effluent discharge point of domestic STP that comprises of a low head with high flow fluctuations. This work comprises of evaluation of the potential power output of MHP generator which attached to different type of STP. The work starts with selection of a five STP which have maximum current population equivalent (PE) over design PE loading ratio. Next, the effluent discharge flow rate & outfall head are collected and recorded. Finally the potential output power for all selected STPs is calculated. The highest continuous effluent discharge flow rate contributing in high potential power and will be identified as the feasible STP for the MHP system installation.

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