Micro-hydropower systems for smallholder farmers in rural communities of Taraba state, Nigeria: Feasibility study, system analysis, design and performance evaluation (Part II)
This article deals with the feasibility study, system analysis, design, and performance evaluation of micro-hydropower systems for smallholder farmers in rural communities of Taraba state in Nigeria. The hydrologic data used to determine the available flow rate to produce the required hydraulic powe...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-09-01
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| Series: | Energy Nexus |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S277242712300058X |
| _version_ | 1797681952906543104 |
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| author | Mbika C. Muteba Shanelle N. Foster Dele Raheem Agwu E. Agwu |
| author_facet | Mbika C. Muteba Shanelle N. Foster Dele Raheem Agwu E. Agwu |
| author_sort | Mbika C. Muteba |
| collection | DOAJ |
| description | This article deals with the feasibility study, system analysis, design, and performance evaluation of micro-hydropower systems for smallholder farmers in rural communities of Taraba state in Nigeria. The hydrologic data used to determine the available flow rate to produce the required hydraulic power were obtained from GEO Global Water Sustainability (GEOGloWS) Service. The principle of Darcy and Weisbach, applied in the Colebrook and Haaland’s equations were employed to analytically estimate the hydraulic head loss due to friction in the penstock, installed trash rack, and fitted valves. The Hydro-Power Plant (HPP) Design professional tool was used to size the different constituents of the proposed micro-hydropower plant, and to evaluate its overall performance. With a low net head of 5.2 m, and a maximum discharge of 1.21 m3/s, two vertical Kaplan turbines with combined peak power of 106 kW were obtained. The Kaplan turbines drive two 6-pole, 50-Hz asynchronous generators with nominal power of 50 kW each. The simulation results from the HPP design tool show that the system achieved a minimum efficiency of 56% with the flow ratio of 0.2, and maximum efficiency 86.1% with flow ratio ranging from 0.6 to 0.8. The Renewable Energy Project Analysis Software (RETScreen) Expert was utilized to perform cost, cash flows, financial sensitivity, and risk analysis of the proposed micro-hydropower plant in Wurno-Gassol. The RETScreen Expert estimated the risk level is at 10%, with minimum and maximum levels of confidence on risk associated with equity payback to occur in 4.6 years and 13.2 years respectively, with median level of confidence in year 7.2. Furthermore, the risk level on energy production cost is estimated at 10%, with minimum and maximum levels of confidence sitting at 101 USD/MWh and 140 USD/MWh respectively, with the median level of confidence at 118 USD/MWh. |
| first_indexed | 2024-03-11T23:53:28Z |
| format | Article |
| id | doaj.art-c141cad6053a4fdba4156ac547a96dc4 |
| institution | Directory Open Access Journal |
| issn | 2772-4271 |
| language | English |
| last_indexed | 2024-03-11T23:53:28Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Energy Nexus |
| spelling | doaj.art-c141cad6053a4fdba4156ac547a96dc42023-09-19T04:09:34ZengElsevierEnergy Nexus2772-42712023-09-0111100228Micro-hydropower systems for smallholder farmers in rural communities of Taraba state, Nigeria: Feasibility study, system analysis, design and performance evaluation (Part II)Mbika C. Muteba0Shanelle N. Foster1Dele Raheem2Agwu E. Agwu3Department of Electrical and Electronic Engineering Technology, University of Johannesburg, 2018, Johannesburg, South AfricaDepartment of Electrical and Computer Engineering, Michigan State University, 48824, MI, United StatesArtic Centre, University of Lapland, 96101, Rovaniemi, Finland; Corresponding author.Department of Agricultural Extension, University of Nigeria, Nsukka, 410001, Enugu, NigeriaThis article deals with the feasibility study, system analysis, design, and performance evaluation of micro-hydropower systems for smallholder farmers in rural communities of Taraba state in Nigeria. The hydrologic data used to determine the available flow rate to produce the required hydraulic power were obtained from GEO Global Water Sustainability (GEOGloWS) Service. The principle of Darcy and Weisbach, applied in the Colebrook and Haaland’s equations were employed to analytically estimate the hydraulic head loss due to friction in the penstock, installed trash rack, and fitted valves. The Hydro-Power Plant (HPP) Design professional tool was used to size the different constituents of the proposed micro-hydropower plant, and to evaluate its overall performance. With a low net head of 5.2 m, and a maximum discharge of 1.21 m3/s, two vertical Kaplan turbines with combined peak power of 106 kW were obtained. The Kaplan turbines drive two 6-pole, 50-Hz asynchronous generators with nominal power of 50 kW each. The simulation results from the HPP design tool show that the system achieved a minimum efficiency of 56% with the flow ratio of 0.2, and maximum efficiency 86.1% with flow ratio ranging from 0.6 to 0.8. The Renewable Energy Project Analysis Software (RETScreen) Expert was utilized to perform cost, cash flows, financial sensitivity, and risk analysis of the proposed micro-hydropower plant in Wurno-Gassol. The RETScreen Expert estimated the risk level is at 10%, with minimum and maximum levels of confidence on risk associated with equity payback to occur in 4.6 years and 13.2 years respectively, with median level of confidence in year 7.2. Furthermore, the risk level on energy production cost is estimated at 10%, with minimum and maximum levels of confidence sitting at 101 USD/MWh and 140 USD/MWh respectively, with the median level of confidence at 118 USD/MWh.http://www.sciencedirect.com/science/article/pii/S277242712300058XDesignEnergyFeasibility studyMicro-hydropowerPerformance analysisRisk analysis |
| spellingShingle | Mbika C. Muteba Shanelle N. Foster Dele Raheem Agwu E. Agwu Micro-hydropower systems for smallholder farmers in rural communities of Taraba state, Nigeria: Feasibility study, system analysis, design and performance evaluation (Part II) Energy Nexus Design Energy Feasibility study Micro-hydropower Performance analysis Risk analysis |
| title | Micro-hydropower systems for smallholder farmers in rural communities of Taraba state, Nigeria: Feasibility study, system analysis, design and performance evaluation (Part II) |
| title_full | Micro-hydropower systems for smallholder farmers in rural communities of Taraba state, Nigeria: Feasibility study, system analysis, design and performance evaluation (Part II) |
| title_fullStr | Micro-hydropower systems for smallholder farmers in rural communities of Taraba state, Nigeria: Feasibility study, system analysis, design and performance evaluation (Part II) |
| title_full_unstemmed | Micro-hydropower systems for smallholder farmers in rural communities of Taraba state, Nigeria: Feasibility study, system analysis, design and performance evaluation (Part II) |
| title_short | Micro-hydropower systems for smallholder farmers in rural communities of Taraba state, Nigeria: Feasibility study, system analysis, design and performance evaluation (Part II) |
| title_sort | micro hydropower systems for smallholder farmers in rural communities of taraba state nigeria feasibility study system analysis design and performance evaluation part ii |
| topic | Design Energy Feasibility study Micro-hydropower Performance analysis Risk analysis |
| url | http://www.sciencedirect.com/science/article/pii/S277242712300058X |
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