The Effect of Ship Coefficients on the Efficiency Gain f Propeller-Vane System

Setyo Leksono, IKAP Utama, MA Djoni, WD Aryawan

Abstract


This paper discusses a correlation between non dimensional parameter of the ship (L/B,B/T, wake fraction, ratio between induced and advance velocity, thrust loading coefficient) and energy gain by applying vane-turbine in the propeller slipstream. The data based on the basis of statistical data (numerical) and model testing. The correlation data can be calculated by quantifying the contribution of causal variables to a targeted effect variable directly and indirectly through other variables and this would be examined by Path analysis. By using this coefficient, it is possible to demonstrate which variable has the main contribution on the efficiency gain. The Data analysis of Microsoft Office Excel software is used to approach the calculation. It is found that L/B and CT affected indirectly the efficiency gain of vane-turbine

Keywords


Path Analysis; Path Coefficient; Causal Factors; Effect Variables; Efficiency Gain

Full Text:

PDF

References


S Leksono, IKAP Utama, MA Djoni, and W D Aryawan, "A Vane Turbine as an Energy Conversion in the Propeller Slipstream of Single Screw Ship," Advanced Materials Research, vol. 789, pp. 417-422, September 2013.

S Leksono, I K A P Utama, M A Djoni, and W D Aryawan, "A Vane Turbine in the Propeller Slipstream as an Alternative Energy Saving Devices," in 5th International Conference on Tech. and Operational OSV, Singapore, 2013.

Sewal Wright, "The Method of Path Coefficients," The Annals of Mathematics Statistics, vol. 5, no. 3, pp. 161-215, September 1934.

D Brown and P Rothery , Models in Biology: Mathematics,Statistics and Computing. Chichester, England: John Wiley & Sons Ltd, 1993.

R F Gunst and L R Mason, Regression Analysis and Its Application. New York, USA: Marcel Dekker, Inc, 1980.

Samuel M Scheiner and J Gurevitch, Design and Analysis of Ecological Experiments. New York, USA: Chapman & Hall, 1993.

Sugiyono, Statistika untuk Penelitian. Bandung, Indonesia: Alfabeta, 2011.

A N Akintunde, "Path Analysis Step by Step using Excel," Journal of Technical Science and Technologies, vol. 1, no. 1, pp. 9-15, 2012.




DOI: http://dx.doi.org/10.12962/j23378557.v2i1.a467

Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.