Wind and Structures

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Guide plates on wind uplift of a solar collector model

  • Chung, K.M. (Aerospace Science and Technology Research Center, National Cheng Kung University) ;
  • Chang, K.C. (Department of Aeronautics and Astronautics, National Cheng Kung University) ;
  • Chen, C.K. (Department of Aeronautics and Astronautics, National Cheng Kung University) ;
  • Chou, C.C. (Department of Aeronautics and Astronautics, National Cheng Kung University)
  • Received : 2010.05.14
  • Accepted : 2012.02.01
  • Published : 2013.02.25
⟨ Previous Next ⟩

Abstract

One of the key issues affecting the promotion of solar water heaters in Taiwan is the severe impact of typhoon each year. An experimental study was conducted to investigate the wind uplift characteristic of a solar collector model with and without a guide plate. The guide plate with different lengths and orientations with respect to wind direction was adopted. It is found that the wind uplift of a solar collector is associated with the tilt angle of the flat panel as expected. A cavity formed between the guide plate and the flat panel has a significant effect on the distributions of streamwsie and lateral pressure. Reduction in uplift is essentially coupled with the projected area of a guide plate on the lower surface of the tilt flat panel.

Keywords

References

  1. Cao, S., Tamura, Y., Kikuchi, N., Saito, M., Nakayama, I. and Matsuzaki, Y. (2009), "Wind characteristics of a strong typhoon", J. Wind Eng. Ind. Aerod., 97 (1), 11-21. https://doi.org/10.1016/j.jweia.2008.10.002
  2. Chang, K.C., Lee, T.S. and Chung, K.M. (2006), "Solar water heaters in Taiwan", Renew. Energ., 31(9), 1299-1388. https://doi.org/10.1016/j.renene.2005.07.003
  3. Chang, K.C., Lee, T.S., Lin, W.M. and Chung, K.M. (2008), "Outlook for solar water heaters in Taiwan", Energ. Policy, 36(1), 66-72. https://doi.org/10.1016/j.enpol.2007.07.030
  4. Chang, K.C., Lin, W.M., Lee, T.S. and Chung, K.M. (2009), "Local market of solar water heaters in Taiwan: review and perspectives", Renew. Energ. Rev., 13, 2605-2612. https://doi.org/10.1016/j.rser.2009.01.031
  5. Chang, Y.C., Tseng, R.S. and Centurioni, L.R. (2010), "Typhoon-induced strong surface flows in the Taiwan strait and Pacific", J. Oceanography, 66(2), 175-182. https://doi.org/10.1007/s10872-010-0015-y
  6. Chou, J.C. (2009), Study of aerodynamic effects of solar water heater with a water storage tank, Master thesis, National Cheng Kung University.
  7. Chung, K.M. (1996), Calibration of ASTRC/NCKU LWT46 low-speed wind tunnel, Technical report, Aerospace Science and Technology Research Center, National Cheng Kung University.
  8. Chung, K.M., Chang, K.C. and Liu, Y.M. (2008), "Reduction of wind uplift of a solar collector model", J. Wind Eng. Ind. Aerod., 96(8-9), 1294-1306. https://doi.org/10.1016/j.jweia.2008.01.012
  9. Holmes, J.D. (2001), Wind loading of structures, Spon Press, London, 72-79.
  10. Kalogirou, S. (2004), "Solar thermal collectors and applications", Prog. in Energy and Combustion Sci., 20, 231-295.
  11. Lee, T.L. (2009), "Predictions of typhoon storm surge in Taiwan using artificial neural networks", Adv. Eng. Software, 40 (11), 1200-1206. https://doi.org/10.1016/j.advengsoft.2007.06.005
  12. Li, Q.S., Xiao, Y.Q., Wu J.R., Fu, J.Y. and Li Z.N. (2008), "Typhoon effects on super-tall buildings", J. Sound Vib., 313(3-5), 581-602. https://doi.org/10.1016/j.jsv.2007.11.059
  13. Li, H.W., Tsai, C.H. and Lo, Y.T. (2009), "Numerical simulation of typhoon surges along the coast of Taiwan", Nat. Hazards, 50(3), 413-431. https://doi.org/10.1007/s11069-008-9308-5
  14. Oaulotto, C., Ciampoli, M. and Augusti, G. (2006), "Wind tunnel evaluation of mean wind pressure on a frame-type signboard", J. Wind Eng. Ind. Aerod., 94(5), 397-413. https://doi.org/10.1016/j.jweia.2006.01.006
  15. Radu, A., Axinte, E. and Theohari, C. (1989), "Steady wind pressures on solar collectors on flat-roofed buildings", J. Wind Eng. Ind. Aerod., 23, 249-258.
  16. Wood, G.S., Denoon, R. and Kwok, K. (2001), "Wind loads on industrial solar panel arrays and supporting roof structure", Wind Struct., 4(6), 481-494. https://doi.org/10.12989/was.2001.4.6.481

Cited by

  1. Blockage effects on surface pressures: the case of an inclined flat plate with and without a guide plate vol.37, pp.7, 2014, https://doi.org/10.1080/02533839.2014.888810
  2. Effect of a vertical guide plate on the wind loading of an inclined flat plate vol.17, pp.5, 2013, https://doi.org/10.12989/was.2013.17.5.537
  3. Numerical simulation of wind loads on solar panels vol.32, pp.12n13, 2018, https://doi.org/10.1142/S0217984918400092