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A Comperative Study on the Behavior of Cooling Towers Under Wind Loads Using Harmonic Solid Ring Finite Elements

Year 2015, Volume: 7 Issue: 2, 20 - 29, 15.06.2015
https://doi.org/10.29137/umagd.346129

Abstract

The present work focuses on a comparative study for the responses of a cooling tower subjected to wind loadings described in accordance with Turkish Standard (TS 498) and Eurocode using harmonic solid ring finite elements. Nonaxisymmetric wind loadings around the circumference make the cooling tower problem three dimensional. However, using harmonic elements reduces the problem to a two dimensional problem by expressing the loading in the form of a Fourier series. Therefore, a finite element program is coded in M atlab incorporating harmonic finite element techniques. The wind analyses of the cooling tower are conducted using 9-noded harmonic solid ring finite element modeling. The harmonic finite element formulations in general terms are presented in the study. The vertical and circumferential distributions of the wind loading effective on the cooling tower according to both standards are compared. The circumferential distributions are expressed using Fourier cosine series and the coefficients indicate that while the wind loading mainly will cause undulating deformations according to Eurocode and beam like deformations according to Turkish Standard (TS 498). M oreover, it is realized that the circumferential distribution of wind pressure influenced the magnitude of displacements and stresses significantly as well as the region under tension along the circumference of the cooling tower.

References

  • [1] Prasahanth N and Sayeed Sulaiman, 2013, To study the effect of seismic loads and wind load on hyperbolic cooling tower of varying dimensions and rcc shell thickness, International Journal of Emerging Trends in engineering and Development, Vol:4-3, 260-269. [2] G. Bosak and A. Flaga, Probabilistic and deterministic aspects of combinations of wind, thermal and dead loads on cooling towers, Journal of wind Engineering and Industrial Aerodynamics 65 (1996) 107 -120. [3] Karisiddappa, M.N. Viladkar, P.N. Godbole, and P. Krishna, Finite element analysis of column supported hyperbolic cooling towers using semiloof Shell and beam elements, Engineering Structures 20 (1998) 75 -85. [4] G. Murali, C.M. Vivek Vardhan and B.V. Prasanth Kumar Reddy, Response of cooling towers to wind loads, ARPN Journal of Engineering and Applied Sciences, Vol:7-1, 2012,114-120. [5] M.N. Viladkar, Karisiddappa, P. Bhargava, P.N. Godbole, Static soil - structure interaction response of hyperbolic cooling towers to symmetrical wind loads, Engineering structures 28 (2006) 1236-1251.
Year 2015, Volume: 7 Issue: 2, 20 - 29, 15.06.2015
https://doi.org/10.29137/umagd.346129

Abstract

References

  • [1] Prasahanth N and Sayeed Sulaiman, 2013, To study the effect of seismic loads and wind load on hyperbolic cooling tower of varying dimensions and rcc shell thickness, International Journal of Emerging Trends in engineering and Development, Vol:4-3, 260-269. [2] G. Bosak and A. Flaga, Probabilistic and deterministic aspects of combinations of wind, thermal and dead loads on cooling towers, Journal of wind Engineering and Industrial Aerodynamics 65 (1996) 107 -120. [3] Karisiddappa, M.N. Viladkar, P.N. Godbole, and P. Krishna, Finite element analysis of column supported hyperbolic cooling towers using semiloof Shell and beam elements, Engineering Structures 20 (1998) 75 -85. [4] G. Murali, C.M. Vivek Vardhan and B.V. Prasanth Kumar Reddy, Response of cooling towers to wind loads, ARPN Journal of Engineering and Applied Sciences, Vol:7-1, 2012,114-120. [5] M.N. Viladkar, Karisiddappa, P. Bhargava, P.N. Godbole, Static soil - structure interaction response of hyperbolic cooling towers to symmetrical wind loads, Engineering structures 28 (2006) 1236-1251.
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Details

Journal Section Articles
Authors

Ali İ. Karakas This is me

Ayse Daloglu

Publication Date June 15, 2015
Submission Date October 24, 2017
Published in Issue Year 2015 Volume: 7 Issue: 2

Cite

APA Karakas, A. İ., & Daloglu, A. (2015). A Comperative Study on the Behavior of Cooling Towers Under Wind Loads Using Harmonic Solid Ring Finite Elements. International Journal of Engineering Research and Development, 7(2), 20-29. https://doi.org/10.29137/umagd.346129

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