Reports

Technical Reports

1. Survey and Replacement of Incadescent Lamps with Compact Fluorescent Lamps in Selected Estates and Facilities in Ilorin, Kwara State, Nigeria – K. R. Ajao, H. A. Ajimotokan, M. K. Garba and .B. F. Sule

The project involved the surveying of organized, medium-sized residential estates facilities that were currently using incandescent lamps and replace same with Compact Fluorescent Lamps (CFLs) with a view of achieving savings in energy consumption. Questionnaires were administered to capture needed data to establish the connection between electricity consumption, electricity saving, waste and the type of lighting in use in the estates and facilities under this pilot scheme. The survey showed a preponderance of use of pin-type incandescent lamps to the screw-type. Over 27, 000 CFLs were replaced in all the estates surveyed. This exercise has successfully reduced electricity consumption considerably and overall, more than 30% energy saving was achieved.

2. Assessment of Impact of 2010 Flood on Communities along the Lower River Niger in Kogi Local Government Area of Kogi State Nigeria – A.Usman, I. P. Ifabiyi, K. A. Adeniran, A. A. Akande, A. W. Salami and M. A. Ayansola

The aim of the study was to assess the impact of 2010 flood on communities along the lower river Niger in Kogi local government area of Kogi state in Nigeria. The incidence and impact of flood in the lower part of river Niger is fast becoming an annual occurrence. The methods adopted in the study involved observation; administration of questionnaire, village square discussion and photographs with video coverage. It was concluded that the flood along the lower valley of river Niger was induced by low pressure, as a result of long drought in the early part of the year and which caused excessive rainfall may have been responsible for the flood.

3. Potential Hydroelectric Power Development at Kampe (Omi) River Dam, Kogi State, Nigeria.  –  A. W. Salami, B. F. Sule and K. M. Lawal

The aim of the study was to establish how to retrofit hydropower generation to Kampe (Omi) multipurpose reservoir using optimization technique. The theoretical evaluation of the hydropower potential of the dam revealed that with 50% and 75% of the estimated excess water in the dam, 3.62 MW and 5.43 MW of hydropower can be generated respectively.

4. Systematic Development of an Hydroelectric Generator at the University of Ilorin Dam, Ilorin, Nigeria (Phase I) – Akoshile, C. O.  Salami, A. W.  Bilewu, S. O.  Falaiye, O. A.  Ibiyemi, T. F.  Olorunmaiye, J. A.  Olaoye, J. O.  Adeleke, O. O.  Ajibola, T. B.  Sule, B. F.  J. O. Aweda and I. T. Adedayo

This project involved the channeling of the excess water through a penstock for hydropower generation.  Hydrological and electro-mechanical assessment was carried out. The hydropower potential of the dam was estimated with generator and turbine efficiencies of 95% and 80% respectively; water supply requirement of 0.05 m3/s at 50%, 75% and 90% reliability as 108, 52 and 34 kW respectively.

5. Development of a National Data Bank for Hydropower Resources and Facilities. – Oje, K. and Garba, M. K.

The aim of the study was to identify hydropower resources and develop a data bank that can be access globally. The results showed the distribution of hydropower resources all the country.

6. Retrofitting Asa Water Supply Dam for Hydroelectric Power Generation. – S. O. Bilewu, A. W. Salami, B. F. Sule, O. O. Adeleke, A. Usman and M. O. Jimoh

The aim of the study was to retrofit Asa dam for hydroelectric power generation. It was concluded that this arrangement has the potential to produce about 1.17MW of electricity. This is about half the power requirement of the Asa treatment plant which currently runs on public power supply from the IBEDC.

7. Assessment of Hydroelectric Potentials at the Owu and Ero-Omola Falls in Kwara State. – B.F. Sule, K. M. Lawal and K. A. Adeniran

The study involved the assessment of hydropower potential of Owu and Ero-omola falls in Kwara state. It was discovered that Owu fall with a hydraulic head of 95.5 m has a potential hydro capacity of 8.81 MW while the Ero-omola fall with an averages discharge of 22.8m3/s and a hydraulic head of 59.4m has a potential hydropower capacity of 8.64MW.

8. Resource Assessment of Hydrokinetic Energy Conversion Technology in Lower River Niger Basin. – L. L. Ladokun A. G. Adeogun K. R. Ajao and B. F. Sule

This study involved a comprehensive resource assessment of the hydrokinetic power potential of the Lower Niger River basin. The total theoretical hydrokinetic power potential of the watershed is 9.925 GW and the total technically recoverable resource is 868.5MW.

9. Assessment and Repair of Solar Streetlights in Township and Rural Communities (Kwara, Kogi, Osun, Oyo, Nassarawa and Ekiti States). – A.S. Oladeji, B. F. Sule, A. Balogun, I. T. Adedayo and B. N. Lawal

The study focused on assessment and repair of solar streetlights in town and rural communities of Kwara, Kogi, Osun, Oyo, Nassarawa and Ekiti States.There was no reasonable matching between the PV, battery and the dc load (LED) to the extent that the project only works during the dry season when there is high insolation.

10. Impact of Climate Change on Streamflow of the Kainji Lake Basin –  A. A. Mohammed A. W. Salami O. G. Okeola B. F. and Sule A. G. Adeogun

This report presents an evaluation of the impacts of climate change on the streamflow in the Kainji Lake basin. Hydro-meteorological data were obtained from NIMET, NIWA and hydrological unit of Kainji hydropower station. These include the minimum and maximum temperature, evaporation, precipitation, runoff and water level for some selected locations in the river Niger catchment in Nigeria and upstream countries. The ANN model results revealed that there was positive relationship between the actual and forecasted runoff for all the selected locations.

11. Optimization of Energy Generation at the Kainji Hydropower Reservoir. – A.A. Mohammed, B. F. Sule, A. W. Salami and A. G. Adeogun

This study was carried out to optimize energy generation at Kainji hydropower dam in Nigeria using operations and ecological requirement constraints. Optimization approach was used to optimize mean total annual energy generation subject to operation and ecological constraints. Results showed that the optimization approach will increase the total annual energy generation at the station by over 1%.

12. Sustainable Sediment Management of Upper Watershed of Jebba Dam for Improved Power Generation. –  A.G. Adeogun B. F. Sule A.W. Salami U. T. Bakare A. A. Mohammed

The study investigated the hydrological processes and sediment transport mechanism at the upstream catchments of hydropower reservoirs in Nigeria. The result showed that annual sediment yield in the watershed was estimated as 255.8tons/ha/yr producing about 8.31x 109 tons of sediment between 1985 and 2010.

13. Techno-Economic and Environmental Feasibility Study of using Solar Led Streetlight in Nigeria: A Case in the City of Ilorin Kwara State. – A.S. Oladeji, B. F. Sule and O. S. Balogun

This work presents techno-economic feasibility study of using solar energy and LED lights for street lightning in Nigeria using the City of Ilorin as a case study. The resells showed that the LED solar street lights additionally save USD 293, 674 in addition to other saving: national electric grid energy.

14. Hydropower Potential Assessment of River Oshin at Budo Umoru and Environs in North Central Nigeria. – A. S. Oladeji, A. A. Mohammed, O. S. Balogun, M. F. Akorede and B. F. Sule

The assessed the hydropower potential of river Oshin at Babaloma in Ifelodun, Kwara State, Nigeria. A hydrological gauge station was installed along the river section to measure the daily water level for a period of one year (January to December, 2017). The hydropower potential of the river at the sub-basin 9 was estimated as 363.36 kW which is in the range mini hydropower plants (MHP).

15. Application of GIS and Site Observations to Complement the Prediction of Magnitude of Flood along Foma River Areas Ilorin Kwara State. – A.A. Chindo, B. F. Sule, O. S. Balogun, A. W. Salami, A. Balogun and I. T. Adedayo

This study made use of the Geographical Information System (GIS) tools to derive cross-sectional variables that were significant in complementing the prediction of the magnitude of flood along Foma-river areas. The predictive accuracy of the ordered logit model approximated 81%. While a 10% error in classification was resulting from the harmonization of the precision and the recall values.

16. Assessment and Modelling of the Impact of Hydropower Operations on the Ecological Integrity of Jebba Lake, Nigeria

The technical report focuses on the assessment and modelling of the impact of hydropower operations on the ecological integrity of Jebba Lake, Nigeria

17. Design, Modelling and Simulation of Prototype Darreius-Savonius Hybrid Hydrokinetic Turbine System for Off-grid Power Generation

The technical report focuses on design, modelling and simulation of prototype Darreius-Savonius Hybrid Hydrokinetic Turbine System for Off-grid Power Generation

18. Hybrid Renewable Energy System for Off-grid Rural Electrification.

The technical report focuses on development of hybrid energy systems for off-grid power generation

19. Development of Small Hydropower System at the Downstream of University of Ilorin Earth Dam

The technical report focuses on developing small hydropower systems at the downstream of the University of Ilorin earth dam.

20. Technical Transaction on A 2-Day Workshop and Exhibition on Small Hydropower Development for Off-grid Electrification: An Indigenization Approach

The technical report focuses on the presentations and recommendations of the 2-day NACHRED workshop on indigenization of the small hydropower technology