You are here

An Experiment on Horizontal and Vertical Wind Turbines with Incorporation of Rounded Shroud Device Using Wind Simulation in a Vehicle

Journal Name:

Publication Year:

Abstract (2. Language): 
The detrimental impact on the environment over the utilization of the conventional energy based fossil fuel is obvious. Thus, the effort on the reduction on the dependency on this unclean fuel is salient. The application of the clean renewable wind power can be one of the appropriate measures in supporting the effort in reducing the dependency on the unclean fuel. Performance is one of the essential aspects in determining the economic attractiveness on the technology application. One of the factors responsible to the performance of the power technology is the wind velocity acting on the rotor blade. The addition of a shroud element is believed to have a great promise to increase the velocity at rotor, thus possibly improving the performance of the wind turbine. This study presents an experiment on horizontal and vertical wind turbines incorporated with rounded shroud devices. The experiment is conducted in a vehicle to simulate the effect of the flow of wind. The results on this experiment indicate that the addition of the shroud device with geometry of diffuser improves the performance of the horizontal axis wind turbine. For the nozzle shroud geometry, it seems to less significantly improve the performance of the horizontal axis wind turbine. For the vertical turbine, the incorporation of the shroud devices, both nozzle and diffuser, has almost no effect to increase the performance. This study also presents the discussion for the reasons behind the experimental results by relating to the condition of the turbine rotation and the wind velocity inside the shroud devices.
FULL TEXT (PDF): 
365-374

REFERENCES

References: 

[1] Y. Ohya, K.I. Abea, “An investigation of flow fields around flanged diffusers using CFD”. Wind Engineering and Industrial
Aerodynamics. Vol 92, pp. 315–330, 2004.
[2] World Wind Energy Association (WWEA), “World Wind Energy Report 2010”, Date of publication: April, 2011.
[3] M. Anyi, B. Kirke, “Evaluation of small axial flow hydrokinetic turbines for remote communities”. Energy for Sustainable
Development, Vol 14, pp. 110–116, 2010.
[4] M.J. Khan, G. Bhuyan, M.T. Iqbal, J.E. Quaicoe, “Hydrokinetic energy conversion systems and assessment of horizontal
and vertical axis turbines for river and tidal applications : technology status review” . Applied Energy. Vol 86, pp. 823–
1835, 2009.
[5] R. Howell, N. Qin, J. Edwards, N. Durrani , “Wind tunnel and numerical study of a small vertical axis wind turbine”,
Renewable Energy, Vol 35 ,pp. 412–422, 2010.
[6] J.F. Manwell, J.G. McGowan, A.L. Rogers, “Wind Energy Explained; Theory, Design and Application. University of
Massachusetts”, USA John Wley & Sons, LTD, 2002.
[7] A. Grant, R. K.W. Dannecker , “Investigations of a building-integrated shrouded wind turbine module”. Wind Energy. Vol
5, pp. 53–71, 2002.
[8] S.Y. Hua, J.H. Cheng, “Innovatory designs for shrouded wind turbines”. Renewable Energy. Vol 33,pp. 1491–1498, 2007
[9] D.P. Georgiou, N.G. Theodoropoulos, “Grounding and the influence of the total pressure losses in shrouded wind
turbines “. Wind Energy. DOI: 10.1002/we.373, 2009.
An Experiment on Horizontal and Vertical Wind Turbines with Incorporation of Rounded Shroud Device Using Wind
Simulation in a Vehicle
ISSN : 2028-9324 Vol. 3 No. 2, June 2013 374
[10] T. Matsushima, S. Takagi, S. Muroyama, “Characteristics of a highly efficient propeller type small wind turbine with a
diffuser”. Renewable Energy. Vol. 31. pp. 1343–1354, 2006.
[11] Y. Ohya, T. Karasudani, “A shrouded wind turbine generating high output power with wind-lens technology”. Energies,
Vol 3. pp. 634–649, 2010.
[12] Hermawan, “Studi eksperimental penggaruh penambahan difuser terhadap unjuk kerja turbin angin sumbu horizontal
tiga sudu dengan variabel bentuk dan panjang difuser”, Prosiding Seminar Nasional Perkembangan Riset dan Teknologi
di Bidang Industri ke 18 Universitas Gadjah Mada, 18, MF 8, 2012.
[13] C.J. Lawn, “Optimization of the power output from shrouded turbines “, Proceedings of the Institution of Mechanical
Engineers. 217, 1; ProQuest Science Journals, 107, 2003.
[14] S.H. Wang, S.H. Cheng, “Blade number effect for a ducted wind turbine”, Journal Mechanical Science Technology, vol.
22, pp 1984-1992, 2008.
[15] T. Burton, D. Sharpe, N. Jenkins, E. Bossanyi, “Wind Energy Handbook”, John Wiley & Sons, Ltd. Baffins Lane,
Chichester West Sussex, PO19 1UD, England, 2001.
[16] R. Lanzafame, M. Messina, “Horizontal axis wind turbine working at maximum power coefficient continuously”,
Renewable Energy, Vol 35, pp 301–306, 2010.

Thank you for copying data from http://www.arastirmax.com