Browse > Article
http://dx.doi.org/10.1016/j.ijnaoe.2017.10.004

Experimental study on multi-level overtopping wave energy convertor under regular wave conditions  

Liu, Zhen (Shandong Provincial Key Laboratory of Ocean Engineering, Ocean University of China)
Han, Zhi (Department of Ocean Engineering, College of Engineering, Ocean University of China)
Shi, Hongda (Shandong Provincial Key Laboratory of Ocean Engineering, Ocean University of China)
Yang, Wanchang (Cangzhou Port Group)
Publication Information
International Journal of Naval Architecture and Ocean Engineering / v.10, no.5, 2018 , pp. 651-659 More about this Journal
Abstract
A multi-level overtopping wave energy converter was designed according to the large tidal range and small wave heights in China. It consists of two reservoirs with sloping walls at different levels. The reservoirs share a common outflow duct and a low-head axial turbine. The experimental study was carried out in a laboratory wave-flume to investigate the overtopping performance of the device. The depth-gauges were used to measure the variation of the water level in the reservoirs. The data was processed to derive the time-averaged overtopping discharges. It was found that the lower reservoir can store wave waters at the low water level and break the waves which try to climb up to the upper reservoir. The upper sloping angle and the opening width of the lower reservoir both have significant effects on the overtopping discharges, which can provide more information to the design and optimization of this type of device.
Keywords
Wave energy conversion; Overtopping device; Multi-level; Experimental study; Sloping angle; Reservoir;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Buccino, M., Banfi, D., vicinanza, D., et al., 2012. Non breaking wave forces at the front face of seawave slotcone generators. Energies 5, 4779-4803.   DOI
2 Buccino, M., Vicinanza, D., Salerno, D., et al., 2015. Nature and magnitude of wave loadings at seawave slot-cone generators. Ocean. Eng. 95, 34-58.   DOI
3 Chini, N., Stansby, P.K., 2012. Extreme values of coastal wave overtopping accounting for climate change and sea level rise. Coast. Eng. 65, 27-37.   DOI
4 Contestabile, P., Ferrante, V., Lauro, E.D., Vicinanza, D., 2016. Prototype overtopping breakwater for wave energy conversion at Port of Naples. In: Proceedings of the 26th International Ocean and Polar Engineering Conference, Rhodes, Greece.
5 Contestabile, P., Ferrante, V., Lauro, E.D., Vicinanza, D., 2017. Full-scale prototype of an overtopping breakwater for wave energy conversion. In: Conference on Coastal Engineering Proceedings, pp. 1-12.
6 Contestabile, P., Iuppa, C., Lauro, E.D., et al., 2017. Wave loadings acting on innovative rubble mound breakwater for overtopping wave energy conversion. Coast. Eng. 122, 60-74.   DOI
7 Falcao, A.F.O., 2010. Wave energy utilization: a review of the technologies. Renew. Sustain. Energy Rev. 14(3), 899-918. http://www.jospa.ie (Accessed in 20 May 2016).   DOI
8 Iuppa, C., Contestabile, P., Cavallaro, L., et al., 2016. Hydraulic performance of an innovative breakwater for overtopping wave energy conversion. Sustainability. https://doi.org/10.3390/su8121226.   DOI
9 Jungrungruengtaworn, S., Hyun, B.S., 2017. Influence of slot width on the performance of multi-stage overtopping wave energy converters. Int. J. Nav. Archit. Ocean Eng. https://doi.org/10.1016/j.ijnaoe.2017.02.005.   DOI
10 Kofoed, J.P., 2002. Wave Overtopping of Marine Structures: Utilization of Wave Energy. Hydraulics & Coastal Engineering Laboratory, Department of Civil Engineering, Aalborg University, Aalborg.
11 Kofoed, J.P., 2006. Vertical distribution of wave overtopping for design of multi level overtopping based wave energy converters. In: 30th International Conference on Costal Engineering, San Diego, USA.
12 Kofoed, J.P., Osaland, E., 2005. Crest level optimization of the multi-level reservoir overtopping based wave energy converter Seawave Slot-cone Generator. In: Proceedings of the 6th European Wave & Tidal Conference, Glasgow, UK.
13 Kofoed, J.P., Hald, T., Frigaard, P.B., 2002. Experimental study of a multi level overtopping wave power device. In: Proceedings of the 10th Congress of International Maritime Association of the Mediterranean, Crete, Greece.
14 Lin, T.C., Hwang, K.S., 2012. An experimental observation of a solitary wave impingement run-up and overtopping on a sea wall. J. Hydrodyn. 24(1), 76-85.   DOI
15 Z. Liu, H. D. Shi, H. Y. Zhao, et al. A multi-level overtopping wave energy converter. Pat. Auth. No. CN2013 10590330.6, 2014.
16 Liu, Z., Shi, H., Cui, Y., Kim, K., 2017. Experimental Study on overtopping performance of a circular ramp wave energy converter. Renew. Energy 104, 163-176.   DOI
17 Maliki, A.Y., Musa, M.A., Ahmad, M.F., et al., 2017. Comparison of numerical and experimental results for overtopping discharge of the OBREC wave energy converter. J. Eng. Sci. Technol. 12(5), 1337-1353.
18 Margheritini, L., Vicinanza, D., Frigaard, P., 2009. SSG wave energy converter: design, reliability and hydraulic performance of an innovative overtopping device. Renew. Energy 34, 1371-1380.   DOI
19 Mehmet, A.A., Mehmet, K.S., 2017. Experimental study for the hydraulic efficiency of an overtopping type wave energy converter with a circular runup ramp. J. BAUN. Inst. Sci. Technol. 19(1), 118-131.
20 Ministry of Transport of the People's Republic of China, 2012. Code of Design and Construction of Breakwaters, JTS-154-1-2011 (In Chinese).
21 Norgaard, J.Q.H., Andersen, T.L., Burcharth, H.F., et al., 2013. Analysis of overtopping flow on sea dikes in oblique and short-crested waves. Coast. Eng. 76, 43-54.   DOI
22 Orszaghova, J., Taylor, P.H., Borthwick, A.G.L., Raby, A.C., 2014. Importance of second-order wave generation for focused wave group run-up and overtopping. Coast. Eng. 94, 63-79.   DOI
23 Palma, G., Formentin, S.M., Zanuttigh, B., et al., 2016. Design optimization of a multifunctional wave energy device. In: Proceedings of the 2nd International Conference on Renewable Energies Offshore, Lisbon, Portugal.
24 Romano, A., Bellotti, G., Briganti, R., Franco, L., 2015. Uncertainties in the physical modelling of the wave overtopping over a rubble mound breakwater: the role of the seeding number and of the test duration. Coast. Eng. 103, 15-21.   DOI
25 Tanaka, H., Inami, T., Sakurada, T., 2015. Characteristics of volume of overtopping and water supply quantity for developing wave overtopping type wave power generation equipment. In: Proceedings of the 25th International Ocean and Polar Engineering Conference, Hawaii, USA.
26 Tanaka, H., Inami, T., Sakurada, T., 2016. Researches and developments of wave overtopping type wave power generation. In: Proceedings of the 26th International Ocean and Polar Engineering Conference, Rhodes, Greece.
27 Vicinanza, D., Frigaard, P., 2008. Wave pressure acting on a seawave slot-cone generator. Coast. Eng. 55, 553-568.   DOI
28 Tjugen, K.J., 1995. TAPCHAN ocean wave energy project at Java: updated project status. In: Proceedings of 2nd European Wave Tidal Energy Conference, Lisbon, Portugal, pp. 42-43.
29 Tonelli, M., Petti, M., 2013. Numerical simulation of wave overtopping at coastal dikes and low-crested structures by means of a shock-capturing Boussinesq model. Coast. Eng. 79, 75-88.   DOI
30 Van Der Meer, J.W., Janssen, J., 1994. Wave run-up and wave overtopping at dikes. Am. Soc. Civ. Eng. 12(2), 175-189.
31 Vicinanza, D., Margheritini, L., Kofoed, J.P., Buccino, M., 2012. The SSG wave energy converter: performance, status and Recent Developments. Energies 5, 193-226.   DOI
32 Vicinanza, D., Contestabile, P., Norgaard, J.Q.H., Anderson, T.L., 2014. Innovative rubble mound breakwaters for overtopping wave energy conversion. Coast. Eng. 88, 154-170.   DOI
33 Williams, H.E., Briganti, R., Pullen, T., 2014. The role of offshore boundary conditions in the uncertainty of numerical prediction of wave overtopping using non-linear shallow water equations. Coast. Eng. 89, 30-44.   DOI
34 Working Group on Wave Energy Conversion, 2003. Wave Energy Conversion. Elsevier Ocean Engineering Book Series, vol. 6. Elsevier Ltd, Oxford, UK.
35 Xue, Y., Xu, W.L., Luo, S.J., et al., 2011. Experimental study of dam-break flow in cascade reservoirs with steep bottom slope. J. Hydrodyn. 23(4), 491-497.   DOI
36 J. Cruz. Ocean Wave Energy - Current Status and Future Perspectives. Springer Series in Green Energy and Technology, Berlin, Germany.