Comparison of Bat and Fuzzy Clusterization for Identification of Suitable Locations for a Small-Scale Hydropower Plant

2012 ◽  
pp. 135-155
Author(s):  
Mrinmoy Majumder
Keyword(s):  
Hydropower Plant ◽  
Small Scale

scholarly journals The influence of water resources on transformation of spatial-functional structure of the territory of the municipality of Mali Zvornik and the possibilities for the construction of new hydro power plants

2010 ◽  
Vol 90 (3) ◽  
pp. 189-206 ◽  
Author(s):  
Mila Pavlovic ◽  
Rajko Golic ◽  
Dejan Sabic
Keyword(s):  
Water Resources ◽  
Power Plants ◽  
Hydraulic Engineering ◽  
Functional Structure ◽  
Hydropower Plant ◽  
Small Scale ◽  
Hydro Power ◽  
Hydropower Plants ◽  
Economic Revitalization ◽  
Hydro Power Plants

The territory of the municipality of Mali Zvornik is, from the aspect of morphology and spatial-functional structure, a heterogeneous area. It is located in the valley of the Drina River and in hilly-mountainous part of Podrinjske mountains. The area of the municipality is 184 km?, with 14076 inhabitants (2002). The importance of water resources for the development of the municipality, particularly of the hydropower plant (HPP) ?Zvornik?, is analyzed in this paper. Inadequate use of hydro-energetic potential, possibilities for construction of new hydropower plants and economic reasons for their construction are also emphasized. The priorities of the development of hydraulic engineering are defined in relation to morphological and hydrological conditions. They refer to increase of power of the HPP ?Zvornik? and construction of small-scale hydropower plants in hilly-mountainous part of municipality. Considering depopulation processes in the villages of Mali Zvornik, hydraulic engineering, together with agriculture, forestry, exploitation of mineral goods and tourism, can be one of the factors of demographic and economic revitalization of this area.

scholarly journals Habitat Use by Pseudochondrostoma duriense and Squalius carolitertii Downstream of a Small-Scale Hydropower Plant

Water ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2522
Author(s):  
Isabel Boavida ◽  
Filipa Ambrósio ◽  
Maria João Costa ◽  
Ana Quaresma ◽  
Maria Manuela Portela ◽  
...  
Keyword(s):  
Habitat Use ◽  
Fish Species ◽  
Hydropower Plant ◽  
Mitigation Measures ◽  
Small Scale ◽  
The North ◽  
Reduce Energy Expenditure ◽  
Hydropower Plants ◽  
River Reach ◽  
Flowing Waters

Downstream of small-scale hydropower plants (SHPs), the intensity, frequency and persistence of hydropeaking events often cause an intolerable stress on fish of all life stages. Rapid increases in flow velocity result in fish avoiding unstable habitats and seeking refuge to reduce energy expenditure. To understand fish movements and the habitat use of native Iberian cyprinids in a high-gradient peaking river, 77 individuals were PIT tagged downstream of Bragado SHP in the North of Portugal. Tagged fish species included Pseudochondrostoma duriense and Squalius carolitertii. Fish positions were recorded manually on two different occasions: during hydropeaking events (HP) and without hydropeaking events (NHP). From the 77 tagged fish, we were able to record habitat use for 33 individuals (20 P. duriense and 13 S. carolitertii) in a total of 125 relocations. Fish species were distributed along the river reach with high density in the upstream area in the vicinity of the SHP tailrace, in particular during HP. Fish locations were associated with velocity for P. duriense and S. carolitertii. The latter tended to use faster flowing waters than P. duriense. Our findings on the habitat use in peaking rivers are a valuable tool to help in the selection and design of mitigation measures.

scholarly journals Model Routing Data pada Pembangkit Listrik Tenaga Mikrohidro (PLTMH) Berbasis Jaringan Sensor Nikabel (JSN)

2021 ◽  
Vol 7 (1) ◽  
pp. 49-61
Author(s):  
Nivika Tiffany Somantri ◽  
Naftalin Winanti ◽  
Fatkhurrohman Fatkhurrohman
Keyword(s):  
Data Communication ◽  
Electrical Energy ◽  
Outdoor Environment ◽  
Hydropower Plant ◽  
Small Scale ◽  
Water Power ◽  
Zigbee Protocol ◽  
Arduino Microcontroller ◽  
Mesh Tree ◽  
Indoor And Outdoor

Pembangkit listrik tenaga mikrohidro adalah salah satu sumber energi listrik terbarukan saat ini dengan memanfaatkan tenaga air berskala kecil untuk penggeraknya. PLTMH pada umumnya memiliki ruang kontrol yang berada jauh dengan sistemnya, sehingga dibutuhkan suatu sistem monitoring. Penggunaan sistem monitoring berbasis nirkabel menjadi salah satu solusi untuk mengatasi masalah tersebut dengan proses pengiriman informasi yang cepat dan mudah. Penelitian ini merancang suatu model routing data dengan perancangan hardware dan software pada komunikasi data. Sistem dibangun menggunakan mikrokontroller arduino dan komunikasi frekuensi Xbee dengan protocol zigbee. Pengujian dilakukan dengan menggunakan berbagai macam topologi yaitu topologi pair, star, mesh, tree, dan x dalam model routing data baik dalam lingkungan indoor maupun lingkungan outdoor. Hasil yang didapat berdasarkan pengujian pada lingkungan indoor menunjukan Xbee tetap dapat mengirim dalam ruangan yang memiliki penghalang dengan jarak 21m, sedangkan pada pengujian outdoor, Xbee dapat tetap mengirim dengan jarak maksimum 120.5m menggunakan model topologi x. Berdasarkan semua pemodelan yang telah dilakukan, topologi x merupakan model yang dianggap paling berhasil walaupun memiliki kelemahan dalam tingkat kerapihan penerimaan data namun dari tingkat keamanannya ketika terjadi masalah dengan salah satu node, topologi x masih memiliki jalur lain untuk dapat mengirimkan data ke penerima. Micro hydropower plant is one of the current renewable electrical energy by making use of small-scale water power for propulsion. MHPP generally has a control room that was away with the system, so we need a monitoring system. The use of wireless-based monitoring systems into one solution to overcome these problems with the delivery process information quickly and easily. Therefore, we designed a model of routing data by designing hardware and software in data communication comprising Arduino microcontroller and Xbee frequency communication with ZigBee protocol. Testing is done by using a variety of topologies, namely topology pair, star, mesh, tree, and x in the model routing of data in both the indoor and outdoor environment. The results obtained by testing the indoor environment is Xbee can still send in a room that had a barrier at a distance of 21m, while the outdoor testing Xbee can still send more than the maximum distance delivery Xbee 70.5m in research that is by using the model topology x. Based on all the modeling that has been done, topology x is the model that is considered the most successful even though it has weaknesses in the level of data reception tidiness. But the level of security has the advantage that when there is a problem with one of the nodes, the x topology still has another path to be able to send data to the receiver.

A sensitivity analysis for the design of small-scale hydropower plant: Kayabogazi case study

2008 ◽  
Vol 33 (4) ◽  
pp. 791-801 ◽  
Author(s):  
Yilmaz Aslan ◽  
Oguz Arslan ◽  
Celal Yasar
Keyword(s):  
Sensitivity Analysis ◽  
Hydropower Plant ◽  
Small Scale

scholarly journals Progress for On-Grid Renewable Energy Systems: Identification of Sustainability Factors for Small-Scale Hydropower in Rwanda

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 826
Author(s):  
Geoffrey Gasore ◽  
Helene Ahlborg ◽  
Etienne Ntagwirumugara ◽  
Daniel Zimmerle
Keyword(s):  
Secondary Data ◽  
Hydropower Plant ◽  
Low Flow ◽  
Electricity Production ◽  
Annual Rainfall ◽  
Maintenance Cost ◽  
Small Scale ◽  
Factors Affecting ◽  
Hydropower Plants ◽  
Generation Capacity

In Rwanda, most small-scale hydropower systems are connected to the national grid to supply additional generation capacity. The Rwandan rivers are characterized by low flow-rates and a majority of plants are below 5 MW generation capacity. The purpose of this study is to provide a scientific overview of positive and negative factors affecting the sustainability of small-scale hydropower plants in Rwanda. Based on interviews, field observation, and secondary data for 17 plants, we found that the factors contributing to small-scale hydropower plant sustainability are; favorable regulations and policies supporting sale of electricity to the national grid, sufficient annual rainfall, and suitable topography for run-of-river hydropower plants construction. However, a decrease in river discharge during the dry season affects electricity production while the rainy season is characterized by high levels of sediment and soil erosion. This shortens turbine lifetime, causes unplanned outages, and increases maintenance costs. Further, there is a need to increase local expertise to reduce maintenance cost. Our analysis identifies environmental factors related to the amount and quality of water as the main current problem and potential future threat to the sustainability of small-scale hydropower. The findings are relevant for energy developers, scholars, and policy-makers in Rwanda and East Africa.

scholarly journals The Small Hydropower Plant Income Maximization Using Games Theory

2021 ◽  
Vol 9 ◽  
pp. 14-19
Author(s):  
Antans Sauhats ◽  
Renata Varfolomejeva ◽  
Inga Umbrasko ◽  
Hasan Coban
Keyword(s):  
Cooperative Game Theory ◽  
Current System ◽  
Hydropower Plant ◽  
Small Rivers ◽  
Small Scale ◽  
Theory Approach ◽  
Small Hydropower ◽  
Hydro Power ◽  
Games Theory ◽  
Additional Income

This paper is devoted to the consideration of case of the use of small rivers energy, the current system of support relevant projects, its drawbacks and opportunities to remove them. Cooperative game theory approach is used for analysis of regime management of the small-scale hydro power plant (SHPP). Technical and economical aspects of the issue are observed. The obtained results demonstrate the validity of the cooperation for obtaining additional income.

scholarly journals Numerical assessment of the vulnerability to impact erosion of a pump as turbine in a water supply system

2020 ◽  
Vol 22 (4) ◽  
pp. 691-712 ◽  
Author(s):  
Fecarotta Oreste ◽  
Messa Gianandrea Vittorio ◽  
Pugliese Francesco
Keyword(s):  
Water Supply ◽  
Pressure Control ◽  
Solid Particles ◽  
Hydropower Plant ◽  
Small Scale ◽  
Water Supply Systems ◽  
Ansys Fluent ◽  
Operative Strategy ◽  
Numerical Assessment ◽  
Impact Erosion

Abstract Nowadays, the installation of pumps as turbines (PATs) in water supply systems (WSSs) is considered attractive because it is able to effectively combine the pressure regulation with the small-scale hydropower generation. One critical aspect concerns the behaviour of the PAT in the presence of solid particles in the flow which impinge against the inner surface of the device, producing a loss of material termed impact erosion. In this paper, the numerical assessment of PAT erosion is performed, by referring, as a case study, to an existing pressure control station in Southern Italy. The variable operative strategy (VOS) was applied to derive the frequency distribution of flow rates over the PAT operation, under the hypothesis of performing the hydraulic regulation of the hydropower plant. The commercial computational fluid dynamics (CFD) code Ansys Fluent was employed for simulating the liquid–solid flow inside the PAT and then coupled with an in-house code to estimate the erosion. The vulnerability of the PAT to wear was analysed by varying its flow rate, aiming at characterizing the decay of PAT components at a constant rotational speed. Finally, a detailed characterization of the PAT response to the particle impingement at its best efficiency point (BEP) was developed and discussed.

scholarly journals SMALL HYDROPOWER IN LATVIA AND INTELLECTUALIZATION OF ITS OPERATING SYSTEMS / PAR MAZO HIDROENERĢĒTIKU LATVIJĀ UN TĀS STACIJU VADĪBAS SISTĒMAS INTELEKTUALIZĀCIJU

2013 ◽  
Vol 50 (6) ◽  
pp. 3-15 ◽  
Author(s):  
A. Mahnitko ◽  
J. Gerhards ◽  
O. Linkevics ◽  
R. Varfolomejeva ◽  
I. Umbrasko
Keyword(s):  
Power Generation ◽  
Mathematical Programming ◽  
Operating Systems ◽  
Optimality Criterion ◽  
Optimal Operation ◽  
Hydropower Plant ◽  
Small Scale ◽  
Small Hydropower ◽  
Reduced Gradient ◽  
Generalized Reduced Gradient

Abstract The authors estimate the potential for power generation from water resources of small and medium-sized rivers, which are abundant in Latvia. They propose the algorithm for optimal operation of a small-scale hydropower plant (SHPP) at the chosen optimality criterion in view of the plant’s participation in the market. The choice of SHPP optimization algorithm is made based on two mathematical programming methods - dynamic and generalized reduced gradient ones. Approbation of the algorithm is illustrated by an example of optimized SHPP operation.

scholarly journals Improving European Silver Eel ( Anguilla anguilla ) downstream migration by undershot sluice gate management at a small-scale hydropower plant

2017 ◽  
Vol 106 ◽  
pp. 349-357 ◽  
Author(s):  
Leonhard Egg ◽  
Melanie Mueller ◽  
Joachim Pander ◽  
Josef Knott ◽  
Juergen Geist
Keyword(s):  
Anguilla Anguilla ◽  
Downstream Migration ◽  
Hydropower Plant ◽  
Small Scale ◽  
Silver Eel ◽  
Sluice Gate
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