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Journal of Solar Energy Research Updates

Articles

Vol. 7 (2020)

Improving Electricity Production in Solar Chimney Power Plants with Sloping Ground Design: An Extensive CFD Research

DOI
https://doi.org/10.31875/2410-2199.2020.07.10
Submitted
January 20, 2020
Published
2020-01-20

Abstract

Unlike other solar energy systems, solar chimney power plants (SCPPs) allow power output even when there is no sun. SCPPs are promising with their simple structure and 24-hour electricity production potential. Massive pressure tower in the system maintains continuous energy generation irrespective of climatic conditions. Solar energy harnessed by the huge collector area is transmitted to the gorund material for sensible or latent heat storage purpose, and this stored energy during daytime yields to enhanced thermal and buoyant effects even after sunset. SCPPs are also in the centre of interest owing to their eco-friendly operation not causing any CO2 emission. Design aspects in SCPPs are widely studied numerically by researchers. However, geometric design factors are merely analysed for collector and chimney, and very few attempts are done for the ground design. In the present work, a new design for ground is proposed in order to improve the energy stored in the ground material, and the upward movement of the air flow in the system from collector to chimney by changing the ground geometry. The upward movement of the air under the collector is enhanced with the new design created by inclining the ground at a distance of 21 m from the chimney inlet to a certain distance from the collector inlet. ANSYS WORKBENCH based CFD analysis is carried out based on the geometric dimensions of the Manzanares pilot plant. Analyses are based on a 90° 3D CFD model for the purpose of time saving in iterations. The CFD model is supported by RNG k-? turbulence and DO (discrete ordinates) solar ray tracing models. After CFD results are verified with the experimental data, simulations are repeated for different designs and the ideal design is achieved. It is observed that the maximum air flow velocity, which is 14.202 m/s on the horizontal ground for the reference case, is improved by 34.1% in the new design to 19.046 m/s. In addition, it is seen that the power output of the reference case (54.333 kW) is enhanced by 23.04% to 66.855 kW.

References

  1. E. Cuce, H. Sen and P. M. Cuce, “Numerical performance modelling of solar chimney power plants: Influence of chimney height for a pilot plant in Manzanares, Spain,” Sustainable Energy Technologies and Assessments, vol. 39, pp. 100704, 2020. https://doi.org/10.1016/j.seta.2020.100704
  2. H. Sen and E. Cuce, “Dynamic pressure distributions in solar chimney power plants: A numerical research for the pilot plant in Manzanares, Spain,” WSSET Newsletter, vol. 12(1), pp. 2-2, 2020.
  3. J. Schlaich, “The solar chimney: electricity from the sun,” Edition Axel Menges 1995.
  4. W. Haaf, K. Friedrich, G. Mayr, and J. Schlaich, “Solar chimneys part I: principle and construction of the pilot plant in Manzanares,” International Journal of Solar Energy, vol. 2(1), pp. 3-20, 1983. https://doi.org/10.1080/01425918308909911
  5. W. Haaf, “Solar chimneys: part ii: preliminary test results from the Manzanares pilot plant,” International Journal of Sustainable Energy, vol. 2(2), pp. 141-161, 1984. https://doi.org/10.1080/01425918408909921
  6. E. Cuce, P. M. Cuce, and H. Sen, “A thorough performance assessment of solar chimney power plants: Case study for Manzanares,” Cleaner Engineering and Technology, vol. 1, pp. 100026, 2020. https://doi.org/10.1016/j.clet.2020.100026
  7. L. B. Mullett, “The solar chimney overall efficiency, design and performance,” International journal of ambient energy, vol. 8(1), pp. 35-40, 1987. https://doi.org/10.1080/01430750.1987.9675512
  8. X. Zhou, J. Yang, B. Xiao, and G. Hou, “Experimental study of temperature field in a solar chimney power setup,” Applied Thermal Engineering, vol. 27(11-12), pp. 2044-2050. 2007. https://doi.org/10.1016/j.applthermaleng.2006.12.007
  9. A. Bugutekin, “Experimental study of temperature field in a solar chimney plant in Adiyaman,” Isi Bilimi ve Teknigi Dergisi/Journal of Thermal Science & Technology, vol. 32(2), pp. 73-80, 2012.
  10. D. Eryener, J. Hollick, and H. Kuscu, “Thermal performance of a transpired solar collector updraft tower,” Energy Conversion and Management, vol. 142, pp. 286-295, 2017. https://doi.org/10.1016/j.enconman.2017.03.052
  11. A. Ayadi, A. Bouabidi, Z. Driss, and M. S. Abid, “Experimental and numerical analysis of the collector roof height effect on the solar chimney performance,” Renewable energy, vol. 115, pp. 649-662, 2018. https://doi.org/10.1016/j.renene.2017.08.099
  12. E. Cuce, A. Saxena, P. M. Cuce, H. Sen, S. Guo, and K. Sudhakar, “Performance assessment of solar chimney power plants with the impacts of divergent and convergent chimney geometry,” International Journal of Low-Carbon Technologies 2021. https://doi.org/10.1093/ijlct/ctaa097
  13. S. Kalash, W. Naimeh, and S. Ajib, “Experimental investigation of the solar collector temperature field of a sloped solar updraft power plant prototype,” Solar energy, vol. 98, pp. 70-77, 2013. https://doi.org/10.1016/j.solener.2013.05.025
  14. A. Koonsrisuk and T. Chitsomboon, “Effects of flow area changes on the potential of solar chimney power plants,” Energy, vol. 51, pp. 400-406, 2013. https://doi.org/10.1016/j.energy.2012.12.051
  15. M. Najmi, A. Nazari, H. Mansouri, and G. Zahedi, “Feasibility study on optimization of a typical solar chimney power plant,” Heat and Mass Transfer, vol. 48(3), pp. 475- 485, 2012. https://doi.org/10.1007/s00231-011-0894-5
  16. S. Amirkhani, S. Nasirivatan, A. B. Kasaeian, and A. Hajinezhad, “ANN and ANFIS models to predict the performance of solar chimney power plants,” Renewable Energy, vol. 83, pp. 597-607, 2015. https://doi.org/10.1016/j.renene.2015.04.072
  17. Y. Ohya, M. Wataka, K. Watanabe, and T. Uchida, “Laboratory experiment and numerical analysis of a new type of solar tower efficiently generating a thermal updraft,” Energies, vol. 9(12), pp. 1077, 2016. https://doi.org/10.3390/en9121077
  18. E. Cuce and H. Sen, “Dünden bugüne güneş bacası güç santralleri: Sistem güç çıkışına etki eden performans parametreleri,” Avrasya 7. Uygulamalı Bilimler Kongresi. 21-22 August 2020, Trabzon, Turkey, pp. 256-262.
  19. M. Ghalamchi, A. Kasaeian, M. Ghalamchi, “Experimental study of geometrical and climate effects on the performance of a small solar chimney,” Renewable and Sustainable Energy Reviews, vol. 43, pp. 425-431, 2015. https://doi.org/10.1016/j.rser.2014.11.068
  20. A. Koonsrisuk, S. Lorente, A. Bejan, “Constructal solar chimney configuration,” International Journal of Heat and Mass Transfer, vol. 53(1-3), pp. 327-333, 2010. https://doi.org/10.1016/j.ijheatmasstransfer.2009.09.026
  21. D. V. V. Shahi, M. A. Gupta, and M. V. S. Nayak, “CFD Analysis of solar chimney wind power plant by Ansys Fluent,” Int J Technol Res Eng, vol. 5(9), pp. 3746-3751, 2018.
  22. P. Karimipour Fard, H. Beheshti, “Performance enhancement and environmental impact analysis of a solar chimney power plant: Twenty-four-hour simulation in climate condition of isfahan province, iran,” International Journal of Engineering, vol. 30(8), pp. 1260-1269, 2017. https://doi.org/10.5829/ije.2017.30.08b.20
  23. S. Larbi, A. Bouhdjar, and T. Chergui, “Performance analysis of a solar chimney power plant in the southwestern region of Algeria,” Renewable and Sustainable energy reviews, vol. 14(1), pp. 470-477, 2010. https://doi.org/10.1016/j.rser.2009.07.031
  24. M. O. Hamdan, “Analysis of solar chimney power plant utilizing chimney discrete model,” Renewable energy, vol. 56, pp. 50-54, 2013. https://doi.org/10.1016/j.renene.2012.09.047
  25. G. M. Ngala, M. B. Oumarou, A. B. Muhammad, and M. Shuwa, “Evaluation of solar chimney power plant in semiarid region of Nigeria, Arid Zone,” Journal of Engineering, Technology and Enviroment, vol. 11, pp. 1-12, 2015.
  26. D. Toghraie, A. Karami, M. Afrand, and A. Karimipour, “Effects of geometric parameters on the performance of solar chimney power plants,” Energy, vol. 162, pp. 1052- 1061, 2018. https://doi.org/10.1016/j.energy.2018.08.086
  27. E. Cuce, P. M. Cuce, “Performance assessment of solar chimneys: Part 1 – Impact of chimney height on power output,” Energy Research Journal, vol. 10, pp. 11-19, 2019. https://doi.org/10.3844/erjsp.2019.11.19
  28. E. Cuce, P. M. Cuce, “Performance assessment of solar chimneys: Part 2 – Impacts of slenderness value and collector slope on power output,” Energy Research Journal, vol. 10, pp. 20-26, 2019. https://doi.org/10.3844/erjsp.2019.20.26
  29. M. T. Esfidani, S. Raveshi, M. Shahsavari, A. Sedaghat, “Computational study on design parameters of a solar chimney,” In 2015 International Conference on Sustainable Mobility Applications, Renewables and Technology (SMART), pp. 1-5, 2015. https://doi.org/10.1109/SMART.2015.7399268
  30. A. A. Gitan, S. H. Abdulmalek, S. S. Dihrab, “Tracking collector consideration of tilted collector solar updraft tower power plant under Malaysia climate conditions,” Energy, vol. 93, pp. 1467-1477, 2015. https://doi.org/10.1016/j.energy.2015.09.009
  31. A. B. Kasaeian, E. Heidari, S. N. Vatan, “Experimental investigation of climatic effects on the efficiency of a solar chimney pilot power plant,” Renewable and Sustainable energy reviews, vol. 15(9), pp. 5202-5206, 2011. https://doi.org/10.1016/j.rser.2011.04.019
  32. P. J. Cottam, P. Duffour, P. Lindstrand, and P. Fromme, “Effect of canopy profile on solar thermal chimney performance,” Solar Energy, vol. 129, pp. 286-296, 2016. https://doi.org/10.1016/j.solener.2016.01.052
  33. A. Ayadi, Z. Driss, A. Bouabidi, M. S. Abid, “Experimental and numerical study of the impact of the collector roof inclination on the performance of a solar chimney power plant,” Energy and Buildings, vol. 139, pp. 263-276, 2017. https://doi.org/10.1016/j.enbuild.2017.01.047
  34. H. H. Al-Kayiem and Q. A. Al-Nakeeb, “Geometry alteration effect on the performance of a solar–wind power system” In 2006 International conference on energy and environment, pp. 50-55, 2006.
  35. E. Cuce, “Güneş bacası güç santrallerinde toplayıcı eğiminin çıkış gücüne ve sistem verimine etkisi,” Uludağ Üniversitesi Mühendislik Fakültesi Dergisi, 2020; vol. 25, pp. 1025-1038, 2020. https://doi.org/10.17482/uumfd.732862
  36. K. Ikhlef, and S. Larbi “Energy Performance Analysis of a Solar Chimney Power Plant with and without Thermal Storage System,” In 2019 6th International Conference on Automation, Control, Engineering and Computer Science (ACECS) Istanbul, Turkey, International Journal of Control, Energy and Electrical Engineering, vol. 11, pp. 1-7, 2019.
  37. A. Hassan, M. Ali, and A. Waqas, “Numerical investigation on performance of solar chimney power plant by varying collector slope and chimney diverging angle,” Energy, vol. 142, pp. 411-425, 2018. https://doi.org/10.1016/j.energy.2017.10.047
  38. M. Motoyama, K. Sugitani, Y. Ohya, T. Karasudani, T. Nagai, and S. Okada, “Improving the power generation performance of a solar tower using thermal updraft wind,” Energy and Power Engineering, vol. 6(11), pp. 362, 2014. https://doi.org/ 10.4236/epe.2014.611031
  39. H. Nasraoui, Z. Driss, A.Ayedi, and H. Kchaou, “Numerical and experimental study of the aerothermal characteristics in solar chimney power plant with hyperbolic chimney shape,” Arabian Journal for Science and Engineering, vol. 44(9), pp. 7491-7504, 2019. https://doi.org/10.1007/s13369-019-03821-x
  40. M. J. Ahirwar and P. Sharma, , “Analyzing the Effect of Solar Chimney Power Plant by Varying Chimney Height, Collector Slope and Chimney Diverging Angle,” International Journal of Innovative Research in Technology, vol. 6(7), pp. 213-219, 2019.
  41. S. Hu, D. Y. Leung, and M. Z. Chen, “Effect of divergent chimneys on the performance of a solar chimney power plant,” Energy Procedia, vol. 105, pp. 7-13, 2017.
  42. J. S. Pattanashetti and N. Madhukeshwara, “Numerical Investigation and Optimization of Solar Tower Power Plant,” International journal of research in aeronautical and mechanical engineering, vol. 2(1), pp. 92-94, 2014.
  43. Y. Xu and X. Zhou, “Performance of divergent-chimney solar power plants,” Solar Energy, vol. 170, pp. 379-387, 2018. https://doi.org/10.1016/j.solener.2018.05.068
  44. A. Zandian and M. Ashjaee, “The thermal efficiency improvement of a steam Rankine cycle by innovative design of a hybrid cooling tower and a solar chimney concept,” Renewable energy,vol. 51, pp. 465-473, 2013. https://doi.org/10.1016/j.renene.2012.09.051
  45. M. A. H. Abdelmohimen and S. A. Algarni, “Numerical investigation of solar chimney power plants performance for Saudi Arabia weather conditions,” Sustainable Cities and Society, vol. 38, pp. 1-8, 2018. https://doi.org/10.1016/j.scs.2017.12.013