River Flow Modelling for Sustainable Operation Of Hydroelectric Power Plant in the Taludaa-Gorontalo Watershed

https://doi.org/10.22146/ijg.64627

Sardi Salim(1*), Muchlis Polin(2)

(1) Electrical Engineering Department, Universitas Negeri Gorontalo, Gorontalo, Indonesia
(2) Information Systems Department, Universitas Negeri Gorontalo, Gorontalo, Indonesia
(*) Corresponding Author

Abstract


River flow discharge is generally measured by multiplying the cross-sectional river area at the measurement point with the flow velocity. However, this approach cannot be used for planning needs which involves knowing the changes in discharge values at all times, which are directly affected by the variations in weather conditions and catchment area systems. This is necessary because planning errors usually lead to unsustainable and interrupted operations. It is possible to determine the changes in the river discharge values using the rainfall-runoff modelling technique through the hydrograph output of the model. Therefore, this study used hydrological modelling techniques to obtain a watershed's spatial and temporal river flow discharge. This involved using parameters such as watershed area, curve number representing land use and soil type, time lag as the delay between maximum rainfall and the occurrence of peak discharge, and the initial abstraction that considers all the losses before the runoff occurred. Moreover, rainfall data were obtained from an ARR station installed around the watershed area, while water level data were retrieved through an AWLR station installed in the river at the debit measurement point. The model was analyzed using HEC-HMS software, while the dependable discharge for power plants was analyzed using the flow duration curve method. The results showed that the rainfall-runoff hydrological modelling technique applied to the Taludaa-Gorontalo sub-watershed could ensure the continuous and sustainable operation of the hydroelectric power plant.


Keywords


Modeling, Hydrology;Discharge;Watershed;electric_power

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References

Amos T., Kabo-Bah, Chuks. J, Nokoe K, Mulugetta Y, Obeng-Ofori D, and Akpoti K, “Multiyear rainfall and temperature trends in the Volta river basin and their potential impact on hydropower generation in Ghana,” Climate, vol. 4, no. 4, p. 49, 2016.

Andrzej W., Devendra M.A, Peter C., Mariond S.P., Assessment of storm direct runoff and peak flow rates using improved SCS-CN models for selected forested watersheds in the Southeastern United States, Journal of Hydrology: Regional Studies Volume 27, February 2020,

Derdour A, Bouanani A, Babahamed K, 2018, Modelling rainfall runoff relations using HEC-HMS in a semi-arid region: Case study in Ain Sefra watershed, Ksour Mountains (SW Algeria), Journal Of Water And Land Development, No. 36 (I–III): 45–55.

Lei Ye,Wei Ding, Xiaofan Zeng, Zhuohang Xin, Jian Wu and Chi Zhang, Inherent Relationship between Flow Duration Curves at Different Time Scales: A Perspective on Monthly Flow Data Utilization in Daily Flow Duration Curve Estimation, Journal MDPI Water Vol. 10, Issue 8, July 2018.

Mishra S.K, Gajbhiye S, Pandey A, September 2013, Estimation of design runoff curve numbers for Narmada watersheds (India), Journal of Applied Water Engineering and Research Vol. 1, No. 1, 69–79, 2013.

Ningaraju H.J, Ganesh Kumar S, Surendra H J, May 2016, Estimation of Runoff Using SCS-CN and GIS method in ungauged watershed: A case study of Kharadya mill watershed, India. International Journal of Advanced Engineering Research and Science (IJAERS) Vol-3, Issue-5, May- 2016.

Pamela J. Edwards, Karl W.J. Williard, Jon E. Schoonover, Fundamentals of Watershed Hydrology, Journal of Contemporary Water Research & Education Volume 154, Issue1 April 2015.

Rasmy M, Sayama T, and Koike T, “Development of water and energy Budget-based Rainfall-Runoff-Inundation model (WEB-RRI) and its verification in the Kalu and Mundeni River Basins, Sri Lanka,” J. Hydrol., vol. 579, p. 124163, 2019.

Samora I, Manso P, Franca M.J, Schleiss A.J, and Ramos H.M, “Opportunity and economic feasibility of inline microhydropower units in water supply networks,” J. Water Resour. Plan. Manag., vol. 142, no. 11, p. 4016052, 2016.

Silveira L, F. Charbonnier, J.L. Genta, The antecedent soil moisture condition of the curve number procedure, Hydrological Sciences-Journal~des Sciences Hydrologiques, 45(i) February 2000.

Tsai Y.C, Chiu C.P, Ko F.K, Chen T.C, and Yang J.T, “Desalination plants and renewables combined to solve power and water issues,” Energy, vol. 113, pp. 1018–1030, 2016.



DOI: https://doi.org/10.22146/ijg.64627

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Accredited Journal, Based on Decree of the Minister of Research, Technology and Higher Education, Republic of Indonesia Number 30/E/KPT/2018, Vol 50 No 1 the Year 2018 - Vol 54 No 2 the Year 2022

ISSN 2354-9114 (online), ISSN 0024-9521 (print)

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