scholarly journals Development of a Hydropower Turbine Using Seawater from a Fish Farm

Processes ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 266
Author(s):  
Md Rakibuzzaman ◽  
Sang-Ho Suh ◽  
Hyoung-Ho Kim ◽  
Youngtae Ryu ◽  
Kyung Yup Kim
Keyword(s):  
Power Plants ◽  
Guide Vane ◽  
Cross Flow ◽  
Synchronous Generator ◽  
Fish Farm ◽  
Hydropower Plant ◽  
Fish Farms ◽  
Data Simulation ◽  
Small Hydropower ◽  
Hydropower Plants

Discharge water from fish farms is a clean, renewable, and abundant energy source that has been used to obtain renewable energy via small hydropower plants. Small hydropower plants may be installed at offshore fish farms where suitable water is obtained throughout the year. It is necessary to meet the challenges of developing small hydropower systems, including sustainability and turbine efficiency. The main objective of this study was to investigate the possibility of constructing a small hydropower plant and develop 100 kW class propeller-type turbines in a fish farm with a permanent magnet synchronous generator (PMSG). The turbine was optimized using a computer simulation, and an experiment was conducted to obtain performance data. Simulation results were then validated with experimental results. Results revealed that streamlining the designed shape of the guide vane reduced the flow separation and improved the efficiency of the turbine. Optimizing the shape of the runner vane decreased the flow rate, reducing the water power and increasing the efficiency by about 5.57%. Also, results revealed that tubular or cross-flow turbines could be suitable for use in fish farm power plants, and the generator used should be waterproofed to avoid exposure to seawater.

scholarly journals Fishways as Downstream Routes in Small Hydropower Plants: Experiences with a Potamodromous Cyprinid

Water ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1041
Author(s):  
Francisco Javier Sanz-Ronda ◽  
Juan Francisco Fuentes-Pérez ◽  
Ana García-Vega ◽  
Francisco Javier Bravo-Córdoba
Keyword(s):  
General Assumption ◽  
Downstream Migration ◽  
Life Cycles ◽  
Hydropower Plant ◽  
Small Hydropower ◽  
Pit Tag ◽  
Safe Alternative ◽  
Hydropower Plants ◽  
Longitudinal Connectivity ◽  
Alternative Routes

Fish need to move upstream and downstream through rivers to complete their life cycles. Despite the fact that fishways are the most commonly applied solution to recover longitudinal connectivity, they are not considered viable for downstream migration. Therefore, alternative facilities are recommended to facilitate downstream migration. However, a few recent studies have disagreed with this general assumption, showing the potential for bidirectional movements. This study advances our understanding of the potential of fishways for downstream migration by studying their efficiency in a run-of-the-river hydropower plant in the Duero River (Spain). To achieve this, downstream movements of the Iberian barbel (n = 299) were monitored in a stepped fishway for two years with passive integrated transponder (PIT)-tag technology, considering the effect of fish origin and release zone. The results showed that 24.9% of barbels descended through the fishway, with the origin and release zone affecting the fishway location. In addition, downstream movements were observed throughout the whole year, except in winter. The study concludes that, under specific scenarios, fishways could act as safe alternative routes for downstream migration.

scholarly journals Fine-scale multiannual survey of benthic invertebrates in a glacier-fed stream used for hydropower generation

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Alberto Scotti ◽  
Roberta Bottarin
Keyword(s):  
Research Programme ◽  
Eastern Alps ◽  
Hydropower Plant ◽  
Research Network ◽  
Small Hydropower ◽  
Hydropower Plants ◽  
Before And After ◽  
Long Term Ecological Research ◽  
Research Facilities

AbstractThe present dataset contains information about aquatic macroinvertebrates and environmental variables collected before and after the implementation of a small “run-of-river” hydropower plant on the Saldur stream, a glacier-fed stream located in the Italian Central-Eastern Alps. Between 2015 and 2019, with two sampling events per year, we collected and identified 34,836 organisms in 6 sampling sites located within a 6 km stretch of the stream. Given the current boom of the hydropower sector worldwide, and the growing contribution of small hydropower plants to energy production, data here included may represent an important – and long advocated – baseline to assess the effects that these kinds of powerplants have on the riverine ecosystem. Moreover, since the Saldur stream is part of the International Long Term Ecological Research network, this dataset also constitutes part of the data gathered within this research programme. All samples are preserved at Eurac Research facilities.

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 Macroinvertebrate Recovery to Varying Hydropeaking Frequency: A Small Hydropower Plant Experiment

2021 ◽  
Vol 8 ◽  
Author(s):  
Claire Kathryn Aksamit ◽  
Mauro Carolli ◽  
Davide Vanzo ◽  
Christine Weber ◽  
Martin Schmid
Keyword(s):  
Field Experiments ◽  
Ecological Impact ◽  
Power Production ◽  
Hydropower Plant ◽  
Small Hydropower ◽  
Hydropower Plants ◽  
Recovery Times ◽  
Plant Experiment ◽  
Specific Reactions ◽  
Macroinvertebrate Drift

As the demand for hydroelectricity progresses worldwide, small hydropower operators are increasingly examining the feasibility of using existing infrastructure (e.g., settling basins) in run-of-the-river schemes for intermittent power production. Such flexible production causes short-term discharge fluctuations (hydropeaking) in downstream reaches with potential adverse effects for the sensitive fauna and flora in alpine streams. In an experimental field study on a previously unregulated section of the upper Rhone River (Switzerland), we measured density and composition of macroinvertebrate drift in two habitats (riffle, pool) following a 15-minute hydropeaking wave. The experimental hydropeaking was replicated five times over 14 days with decreasing recovery times between peaks (8, 3, 2 days, and 24 h), and drift measurements were compared with kick samples for the benthic community. Results from the kick sampling showed that benthic macroinvertebrate abundance and composition did not significantly change between the experimental peaks. There were habitat specific reactions in macroinvertebrate drift to hydropeaking, with the pool experiencing more pronounced drift abundances than the riffle. Overall, drift abundance was not significantly correlated with recovery time, but results indicate taxa-specific differences. This research advocates for the importance of completing more in-situ field experiments in order to better understand the ecological impact of flexible power production in small hydropower plants.

scholarly journals Design and Fabrication of an Automatic Trash Remover for Open Channel Waterway for Micro Hydropower Plant Application

2019 ◽  
Vol 2 (2) ◽  
pp. 145-148
Author(s):  
A. M. Shiddiq Yunus ◽  
Musrady Mulyadi ◽  
Apollo Apollo
Keyword(s):  
Renewable Energy ◽  
Power Plants ◽  
Large Scale ◽  
Open Channel ◽  
Control Mechanism ◽  
Low Voltage ◽  
Hydropower Plant ◽  
Maintenance Cost ◽  
Small Communities ◽  
Hydropower Plants

Mitigation of catastrophic impacts of exhausted pollutants from conventional based power plants could be done by extensively used of renewable energy-based power plants. One of the promising renewable-based power plants that already have technology maturity is hydropower. However, large scale hydropower is based on an appropriate site and not economically effective for isolated and remote small communities. As anticipation, to fulfill the power requirements of these communities, micro-hydropower plants (MHPPs) are applied due to its inexpensive capital and low maintenance cost. Normally, MHPPs projects are finalized from civil construction to powerhouse. A simple trash filter is usually located before the intake of the penstock. This simple trash filter usually causes a problem related to trash collection that blocks the water debit into the penstock intake. The low debit, might cause the turbine's rotation will be reduced which in turn downgrade the voltage and frequency. Low voltage and frequency might harm consumers. In this paper, a new control mechanism based on Arduino Mega of automatic trash removed is introduced.

scholarly journals THE ECONOMICS OF MICROHYDRO POWER PLANTS

2013 ◽  
Vol 14 (2) ◽  
Author(s):  
Muhammad Abid ◽  
Kh. S. Karimov ◽  
M. W. Al-Grafi ◽  
S. I. Islomov ◽  
N. H. Karimova
Keyword(s):  
Life Cycle ◽  
Economic Evaluation ◽  
Water Flow ◽  
Power Plants ◽  
Free Water ◽  
Life Cycle Costing ◽  
Hydropower Plant ◽  
Hydropower Plants ◽  
The Village

ABSTRACT:  In this paper economics of a micro-hydropower plant installed in the village named Pashmi-Kuhna of Tajikistan and of a battery-based micro-hydropower plant on catamaran for free water flow operation designed, fabricated and tested in GIK Institute of Pakistan are discussed. For the economic evaluation of these power plants, the life-cycle costing approach is used.  Finally the costs of the produced energy by the micro-hydropower plants are calculated. ABSTRAK: Menerusi kertas kerja ini, bidang ekonomi loji hidrokuasa mikro yang dibina di perkampungan  Pashmi-Kuhna, Tajikistan diperbincangkan. Loji hidrokuasa mikro di atas katamaran yang membolehkan gerakan air bebas berasaskan bateri direka, dicipta dan diuji di Institut Pakistan GIK. Untuk penilaian ekonomi loji ini, pendekatan pengekosan kitar hidup telah digunakan. Akhirnya, kos dihitung berdasarkan kuasa yang dihasilkan oleh loji hidrokuasa mikro.

Design of Fuzzy Logic Controller for Up to 25MW Hydropower Plant

2020 ◽  
pp. 95-106
Author(s):  
Sumer Chand Prasad
Keyword(s):  
Fuzzy Logic ◽  
Fuzzy Logic Controller ◽  
Fuzzy Controller ◽  
Hydraulic Turbine ◽  
Hydropower Plant ◽  
Small Hydropower ◽  
Hydropower Plants ◽  
Response To Change ◽  
Turbine Speed ◽  
Gain Adjustment

In this chapter the emerging control techniques for 25 MW small hydropower (SHP) plants which utilize fuzzy logic are compared with conventional PID control for the speed control of hydraulic turbine in terms of rise time, smoothness of response, settling time, and overshoot in wicket gate opening with the response to change in turbine speed. In the case of the PID controller, gain adjustment (tuning) is required. The fuzzy controller algorithm is based on intuition, experience, and it incorporates a simple, rule-based IF X AND Y THEN Z approach. These controllers obtained don't require gain adjustment. The work done is a small step towards the automation of the hydropower plants.

scholarly journals Evaluation of the possibilities of using water-damming devices on the Tyśmienica River to build small hydropower plants

2017 ◽  
Vol 35 (1) ◽  
pp. 113-119 ◽  
Author(s):  
Alina Kowalczyk-Juśko ◽  
Andrzej Mazur ◽  
Antoni Grzywna ◽  
Agnieszka Listosz ◽  
Roman Rybicki ◽  
...  
Keyword(s):  
Power Plants ◽  
Renewable Energy Sources ◽  
Natura 2000 ◽  
Legal Framework ◽  
Point Of View ◽  
Hydroelectric Power ◽  
Energy Potential ◽  
Small Hydropower ◽  
Hydropower Plants ◽  
Technical Capacity

AbstractHydropower plants in Poland currently use only 19% of the river’s energy potential. Development of hydropower is limited by environmental regulations as well as by economic grounds. From the environmental point of view, it is desirable to build small hydropower plants integrated into the local landscape. This paper presents results of the research aimed at estimating the amount of energy that could be produced in the case of small hydroelectric power plants on weirs existing on the Tyśmienica River. There is also a legal framework that should be adapted at hydropower development. It was calculated that the technical capacity of the small hydropower plants that could be built on 4 existing weirs, is 0.131 MW. These power plants could produce 786 MWh of electricity per year. The economic efficiency of this production is currently difficult to assess, because a new support system for renewable energy sources is currently being implemented, which will be a decisive factor for entrepreneurs. It should be borne in mind that potential investments will be made in protected areas within the Natura 2000 network, which may limit their constructing or impose the obligation to assess their impact on selected environmental elements. Location within the protective area does not eliminate such investments, especially when solutions with the least possible environmental impact are used.

scholarly journals Evaluation of small hydropower plant at Ribb irrigation dam in Amhara regional state, Ethiopia

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Addisu Worku Bezabih
Keyword(s):  
Power Plants ◽  
Hydroelectric Plant ◽  
Hydropower Plant ◽  
Hydroelectric Power ◽  
Small Hydropower ◽  
Study Region ◽  
Promising Alternative ◽  
Main Requirement ◽  
Energy Needs ◽  
Hydroelectric Plants

Abstract Background Energy is the main requirement for economic growth in any country and supports the modern economy. The energy sector is considered a vital element in developing countries because it meets energy needs. This article addresses the production of electricity using small hydroelectric power plants for rural applications. The main objective of this study was to assess the potential of the Ribb dam for small hydroelectric plants. The flow is very important for the production of hydroelectricity as the height of a proposed site is constant and the available flow is very variable. Result The flow duration curve is constant and it will vary from 20 to 50% from the nominal flow. Further, it will decrease when the percentage of the nominal flow increases. The best size of a small hydroelectric plant producing a maximum of electricity in the context of future projected flows in the study region. Further, the Ribb dam concluded that the average flow of 14.6331 m3/s, the smooth head of 70.37 m, and the average nominal power of 5.53 MW. Conclusion Small hydro system (SHP) is a promising alternative for the production of cheap and renewable energy in rural or developing areas.

scholarly journals AN AHP APPLICATION IN THE INVESTMENT SELECTION PROBLEM OF SMALL HYDROPOWER PLANTS IN TURKEY

2015 ◽  
Vol 7 (2) ◽  
Author(s):  
Burak Omer Saracoglu
Keyword(s):  
Electricity Generation ◽  
Electricity Consumption ◽  
Feasibility Studies ◽  
Decision Makers ◽  
Hydropower Plant ◽  
Small Hydropower ◽  
Analytic Hierarchy ◽  
Hydropower Plants ◽  
Four Levels ◽  
Hierarchy Process

<p>Turkey is a country that has had to deal with high electricity consumption due to its rapid growth and development. Attempts have been made to address this increase in demand by increasing the electricity supply by means such as boosting resources by privatization. The electricity generation sector has been privatized in Turkey; hence investors have been looking for the most appropriate electricity generation projects for a long while. Therefore, researchers and practitioners should focus on how the most suitable small hydropower plant project (SHPP) investments can be selected. In this study, the Analytic Hierarchy Process (AHP) was applied to make the most appropriate and satisfying decision according to the decision makers, experts or investors for a SHPP investment from amongst some alternative SHPP investments in Turkey. All of these SHPPs were assumed to be in the pre-development investment stage, which indicated that their pre-feasibility and feasibility studies had not been presented or taken into consideration until this study was performed. This main constraint forced the researchers to obtain the data and information from the information forms such as the application document to the General Directorate of State Hydraulic Works during the data and information gathering process. The AHP model of this study was structured in four levels with five main criteria, seventeen basic criteria and five alternatives on the Super Decisions Software. The results indicated that Alternative 1 and Alternative 5 should be primarily investigated in detail in subsequent SHPP investment investigation steps.</p>

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