The coefficient of discharge at the bottom intake weir with a screen of a circular perforated plate

• Autorzy: Rizal Nanang S. , Bisri Mohammad , Juwono Pitojo T. , Dermawan Very

Identyfikatory

DOI

10.24425.jwld.2020.133008

• Języki publikacji: EN

Abstrakty

EN

The purpose of this study is to find the value of the discharge coefficient (Cd) on a sieve with a circular perforated plate so that it can be used for application in the field. The method used is to make a physical model test of the screen weir in the laboratory with a width of 40 cm and a length of 797 cm, then the screen is made variations in the diameter of the hole 6, 8, 10 and 12 mm, flowrate Q = 453–4 481 cm³∙s^–1 and the slope of the screen θ = 20–45°. The result was quite effective, the sediment did not enter above the screen and did not clog the screen even the catch was quite good about 80% of the screen rods. The discharge coefficient (Cd) is directly proportional to the square value of the number Froude (Fr), the slope of the screen (θ) and the ratio of distance, diameter of the screen (a:d) and inversely proportional to the value of the specific energy square (E). From modelling the average value of the discharge coefficient (Cd) between 0.1–2.75 with NSE = 0.71, MAE = 0 and RMSE = 0.12.

Słowa kluczowe

EN

bottom intake; circular perforated plate; discharge coefficient; screen

• Wydawca: Wydawnictwo ITP
• Czasopismo: Journal of Water and Land Development
• Rocznik: 2020
• Tom: no. 45
• Strony: 1--9
• Opis fizyczny: Bibliogr. 22 poz., rys., tab.

Twórcy

autor

Rizal Nanang S.

• University of Muhammadiyah Jember, Department of Civil Engineering, Faculty of Engineering, Jalan Karimata 49, Jember 68121, East Java, Indonesia

autor

Bisri Mohammad

• Brawijaya University, Department of Water Resources Engineering, Faculty of Engineering, Malang, East Java, Indonesia

autor

Juwono Pitojo T.

• Brawijaya University, Department of Water Resources Engineering, Faculty of Engineering, Malang, East Java, Indonesia

autor

Dermawan Very

• Brawijaya University, Department of Water Resources Engineering, Faculty of Engineering, Malang, East Java, Indonesia

Bibliografia

• BĄK Ł., DĄBKOWSKI S.L. 2013. Spatial distribution of sediments in Suchedniów reservoir. Journal of Water and Land Development. No. 19 p. 13–22. DOI https://doi.org/10.2478/jwld-2013-0011.
• BAJKOWSKI S 2010. Sediment segregation on weirs of lowland rivers. Land Reclamation. No. 42 (1) p. 177–185. DOI https://doi.org/10.2478/v10060-008-0076-4.
• BOUVARD M. 1992. Mobile barrages and intakes on sediment transporting rivers. Rotterdam. Balkema Publ. ISBN 90-6191-150-8 pp. 2-4.
• BRUNELLA S., HAGER W.H., HANS E.M.H.E. 2003. Hydraulics of bottom rack intake. Journal of Hydraulic Engineering. No. 1 p. 2–10.
• CARRILLO J.M., GARCÍA J.T., CASTILLO L.G. 2018. Empirical, dimensional and inspectional analysis in the design of bottom intake racks. Water. Vol. 10. Iss. 8, 1035. DOI https://doi.org/10.3390/w10081035.
• CASTILLO L.G. 2013. Flow and sediment transport through bottom racks. CFD application and verification with experimental measurements [online]. Proceedings of 2013 IAHR Congress. Beijing. Tsinghua University Press. [Access 10.01.2019]. Available at: https://www.upct.es/hidrom/publicaciones/congresos/2013_Chengdu_Flow_and_sediment_transport.pdf
• DROBIR H., KIENBERGER V., KROUZECKY N. 1999. The wetted rack length of the tyrolean weir [online]. Proceedings 28 IAHR Conf. Graz, Austria. [Access 10.01.2019]. Available at: http://hydraulics.unibs.it/hydraulics/wp-content/uploads/2012/04/Tyrolean_intake.pdf
• GHOSH S., AHMAD Z. 2005. Characteristics of flow over bottom racks [online]. Water and Energy International. No. 2 p. 47–55. [Access 10.01.2019]. Available at: http://www.indianjournals.com/ijor.aspx?target=ijor:wei&volume=63&issue=2&article=006
• KOWALCZYK-JUŚKO A.,MAZUR A., GRZYWNA A., LISTOSZ A., RYBICKI R., PYTKA A., DOROZHYNSKYY O., JÓŹWIAKOWSKI K., GIZIŃSKA-GÓRNA M. 2017. Evaluation of the possibilities of using water-damming devices on the Tyśmienica River to build small hydropower plants. Journal of Water and Land Development. No. 35 p. 113–119. DOI https://doi.org/10.1515/jwld-2017-0074.
• KAMANBEDAST A.A., BEJESTAN M.S. 2008. Effects of slope and area opening on the discharge ratio in bottom intake structures. Journal of Applied Sciences. No. 14 p. 2631–2635. DOI https://scialert.net/abstract/?doi=jas.2008.2631.2635.
• KUMAR S., AHMAD Z., KOTHYARI U.C., MITTAL M.K. 2010. Discharge diversion characteristics of trench weirs. Flow Measurement and Instrumentation. No. 21 p. 80–87. DOI https://doi.org/10.1016/j.flowmeasinst.2010.01.002
• ŁABĘDZKI L. 2009. Expected development of irrigation in Poland in the context of climate change. Journal of Water and Land Development. No. 13b p. 17–29. DOI 10.2478/v10025-010-0002-0.
• NAKAGAWA H. 1969. On hydraulic performance of bottom diversion works. Bulletin of Disaster Prevention Research Institute Kyoto University, Japan. No. 18 (3) p. 29–48.
• RIGHETTI M., RIGON R., LANZONI S. 2000. Indagine sperimentale del deflusso attraverso una griglia di fondo a barre longitudinali [Experimental investigation of outflow through a bottom grid with longitudinal bars] [online]. Proceedings of the XXVII Convegno di Idraulica e Costruzioni Idrauliche, Genova, Italy. Vol. 3 p. 112–119. [Access 3.04.2018]. Available online: http://www.ing.unitn.it/~rigon/papers/righetti_etal.pdf
• RIGHETTI M. LANZONI S. 2008. Experimental study of the flow field over bottom intake racks. Journal of Hydraulic Engineering. Vol. 134 p. 1–15. DOI https://doi.org/10.1061/(ASCE)0733-9429(2008)134:1(15)
• RIZAL N.S., BISRI M., JUWONO P.T., DERMAWAN V. 2018. Determination of discharge coefficient in tyrol weir using screen from of circle with diameter and distance hole variation. International Journals of Civil and Engineering Technology. No. 6 p. 1546–1557. Article ID IJCIET_09_06_174.
• SAHINER H. 2012. Hydraulic characteristics of tyrolean weirs having steel racks and circular-perforated entry. Thesis submitted in partial fulfillment of the requirements for the degree of master of science in the Department of Civil Engineering The Middle East Technical University, Ankara, Turkey pp. 23.
• SUBRAMANYA K. 1990. Trench weir intake for mini hydro projects. Proceedings Hydromech and Water Resources Conf. IISc, Banglore p. 33–41.
• OZKAYA H. 2015. Computer assisted hydraulic design of tyrolean weirs. Thesis submitted in partial fulfillment of the requirements for the degree of master of science in the Department of Civil Engineering The Middle East Technical University, Ankara, Turkey.
• VENKATARAMAN P., NASSER M.S., RAMAMURTHY A.S. 1979. Flow behavior in power channels with bottom diversion works. Proceedings XVIII IAHR Conference. Cagliari, Italy. Vol. 4 p. 115–122.
• WHITE J.K., CHARLTON J.A., RAMSAY C.A.W. 1972. On the design of bottom intakes for diverting stream flows. Proceedings International of Civil Engineering. London. Vol. 51. Iss. 2 p. 337–345. DOI https://doi.org/10.1680/iicep.1972.5956.
• ZERIHUN Y.T. 2015. Numerical simulation of flow in open channel with bottom intake rack. Water Utility Journal. No. 1 p. 49–61.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).