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 OJFD  Vol.6 No.3 , September 2016
Study on a Comprehensive Energy-Saving Sail by CFD Method
Abstract: A comprehensive energy-saving sail (CES) has been proposed in order to promote energy saving and emission reduction from shipping. Wind energy is harvested for propulsion and electrical generator at the same time by a unique structure of CES. A CFD (Computational Fluid Dynamics) code is verified by a case of arc wind sail, and it is used to simulate the pressure and velocity around the CES. The results show that the outlet velocity of air tunnel Vo and wind velocity Vi serve as an equation Vo ≈ 1.31Vi, which means the CES can effectively improve the conversion efficiency. In addition, it is found that Vo increases with the tunnel diameter to some extend over which it will keep almost constant.
Cite this paper: Zheng, Y. , Liu, D. , An, H. , Sun, W. and Xu, T. (2016) Study on a Comprehensive Energy-Saving Sail by CFD Method. Open Journal of Fluid Dynamics, 6, 145-155. doi: 10.4236/ojfd.2016.63012.
References

[1]   Blasco, J., Durán-Grados, V., Hampel, M., et al. (2014) Towards an Integrated Environmental Risk Assessment of Emissions from Ships’ Propulsion Systems. Environment International, 66, 44-47.
http://dx.doi.org/10.1016/j.envint.2014.01.014

[2]   IMO (2013) Marine Environment Protection Committee 65th Session Pushes forward with Energy-Efficiency Implementation.
http://www.imo.org/MediaCentre/PressBriefings/Pages/18-MEPC65ENDS.aspx

[3]   Banos, R., Manzano-Agugliaro, F. and Montoya, F.G. (2011) Optimization Methods Applied to Renewable and Sustainable Energy: A Review. Renewable and Sustainable Energy Reviews, 15, 1753-1766.
http://dx.doi.org/10.1016/j.rser.2010.12.008

[4]   Shukla, P.C. and Ghosh, K. (2009) Revival of the Modern Wing Sails for the Propulsion of Commercial Ships. International Journal of Mathematical, Computational, Physical and Quantum Engineering, 3, 5-10.

[5]   Ren, H.Y., Sun, P.T., Li, T., Wu, G.T. and Huang, L.Z. (2012) Simulation on Disturbance Characteristics of Marine Diesel Engine with Wing-Assisted System. Advanced Materials Research, 347-353, 3564-3570.

[6]   Ren, H.Y., Sun, P.T., Zhao, Y.T., Huang, L.Z., Wang, H.M. and Yang, B.S. (2012) Research on the Wing’s Thrust of “Wenzhuhai” Ship with Install Wing. Advanced Materials Research, 462, 307-312.
http://dx.doi.org/10.4028/www.scientific.net/AMR.462.307

[7]   Sumi, K., Hikima, T., Hashimoto, T., et al. (2001) A Study on the Application of Wind Energy Conversion System to a Coal Cargo Ship. Journal of the Japan Institution of Marine Engineering, 36, 160-167.
http://dx.doi.org/10.5988/jime.36.160

[8]   Bockmann, E. and Steen, S. (2011) Wind Turbine Propulsion of Ships. Proceedings of Second International Symposium on Marine Propulsors, Hamburg, June 2011.

[9]   Viola, I.M. (2009) Downwind Sail Aerodynamics: A CFD Investigation with High Grid Resolution. Ocean Engineering, 36, 974-984.
http://dx.doi.org/10.1016/j.oceaneng.2009.05.011

[10]   Viola, M. and Flay, R.G. (2011) Sail Pressures from Full-Scale, Wind-Tunnel and Numerical Investigations. Ocean Engineering, 38, 1733-1743.
http://dx.doi.org/10.1016/j.oceaneng.2011.08.001

[11]   Paton, J. and Morvan, H. (2009) Using Computational Fluid Dynamics to Model Sail Interaction—The “Slot Effect” Revisited. Journal of Wind Engineering and Industrial Aerodynamics, 97, 540-547.
http://dx.doi.org/10.1016/j.jweia.2009.08.005

[12]   Tahara, Y., Masuyama, Y., Fukasawa, T., et al. (2012) Sail Performance Analysis of Sailing Yachts by Numerical Calculations and Experiments. In: Hector Juarez, L., Ed., Fluid Dynamics, Computational Modeling and Applications. InTech Open Access Publisher, 116-117.
http://dx.doi.org/10.5772/2403

[13]   Shao, H.Z. and Xiong, Z.M. (1990) Theoretical and Experimental Study of Sail Aerodynamic Performance. Journal of China Shipbuilding and Marine Engineering, 9, 103-132 (in Chinese).

 
 
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