An efficient self-cleaning Dam-Type Sediment Excluder upstream of the dam reservoir

• Autorzy: Pishgar Reza , Keshavarzi Ali Reza , Aslani Kordkandi Abolfazl

Identyfikatory

DOI

10.1007/s11600-022-00855-y

• Języki publikacji: EN

Abstrakty

EN

Sedimentation is almost a serious problem for reservoir dams due to loss of storage, malfunction of bottom intakes, corrosion, and damage to power generators, increased food risk, water quality degradation, and other environmental degradation problems. There are some methods of sediment removal from the reservoir, such as dredging and flushing. The above techniques are not feasible for all reservoirs due to high cost and low efficiency. In this paper, a new sediment extractor referred hereafter as Dam-Type Sediment Excluder (DTSE) is introduced. The self-cleaning DTSE excludes suspended sediment from the river flow upstream of the reservoir and then bypasses the river downstream of the reservoir. The efficiency of the proposed DTSE was examined under different excluding flow rates, opening heights, inlet flow Froude numbers, and sediment concentrations. This research also investigates the influence of suspended- sediment concentration profile on the model efficiency. The results indicate that the efficiency of the DTSE is highly sensitive to the flow velocity and the middle intake location and height. The maximum extracted efficiency of the model was found to be about 40%, while the average optimal efficiency was 26%.

Słowa kluczowe

EN

DTSE; reservoir sedimentation; suspended load; sediment exclusion; self-cleaning

PL

DTSE; sedymentacja zbiornika; obciążenie podwieszone; wykluczenie osadu; samooczyszczanie

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2022
• Tom: Vol. 70, no 5
• Strony: 2389--2401
• Opis fizyczny: Bibliogr. 33 poz.

Twórcy

autor

Pishgar Reza

• Water Structures Department, Tarbiat Modares University, P.O. Box 14115-336, Tehran, Iran

• https://orcid.org/0000-0002-3799-9060

autor

Keshavarzi Ali Reza

• Water Engineering Department, Shiraz University, P.O. Box 84334 -71946, Shiraz, Iran
• Center for Infrastructures Engineering, School of Engineering, Western Sydney University, Penrith, Australia

autor

Aslani Kordkandi Abolfazl

• Department of Engineering, Payame Noor University (PNU), P.O. Box 19395-4697, Tehran, Iran

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Uwagi

PL

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).