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Journal of Solar Energy Research Updates

Articles

Vol. 8 (2021)

Humidity Effect on the Simulation Accuracy of Solar Vortex Engine Performance

DOI
https://doi.org/10.31875/2410-2199.2021.08.10
Submitted
December 1, 2021
Published
2021-10-31

Abstract

In this study, a validated computational simulation is presented to investigate the effect of humidity on the performance prediction of the solar vortex engine system. Data from an experimental model are used to validate the CFD simulation. Three humidity cases are considered: dry air, 40% and 80% humid air. An expansion process with heat addition is taking place inside the vortex generator. When the vortex field continues outside the system, a compression process with heat rejection occurs, eventually bringing the air vortex to be thermal and mechanical equilibrium with the surrounding atmosphere. The change in total energy and the heat transfer rate for both processes, inside the vortex generator and outside the vortex generator, increase with increased humidity in the working fluid. The humidity increases the energy required by the system to generate and maintain the air vortex. Compared to the dry air, the pressure drop at the center of the vortex field decreases by (2-5%) and (4-9%) for the 40% and 80% humid air, respectively. Reduced pressure drop decreases the stability of the air vortex when it is in contact with the atmosphere. The intensity of the air vortex is not affected by the increase in humidity.

References

  1. W. Haaf, K. Friedrich, G. Mayr, J. Schlaich, Solar chimneys part I: principle and construction of the pilot plant in Manzanares, International Journal of Solar Energy 1983; 2(1): 3-20. https://doi.org/10.1080/01425918308909911
  2. W. Haaf, Solar chimneys: part ii: preliminary test results from the Manzanares pilot plant, International Journal of Sustainable Energy 1984; 2(2): 141-161. https://doi.org/10.1080/01425918408909921
  3. LM. Michaud, Proposal for the use of a controlled tornado-like vortex to capture the mechanical energy produced in the atmosphere from solar energy, Bulletin of the American Meteorological Society 1975; 530-534.
  4. LM. Michaud, Thermodynamic cycle of the atmospheric upward heat convection process, Meteorology and Atmospheric Physics 2000; 72(1): 29-46. https://doi.org/10.1007/s007030050003
  5. LM. Michaud, Atmospheric vortex engine, Google Patents, 2006.
  6. LM. Michaud, The atmospheric vortex engine, 2009 IEEE Toronto International Conference Science and Technology for Humanity (TIC-STH), IEEE, 2009; pp. 971-975. https://doi.org/10.1109/TIC-STH.2009.5444355
  7. HH. AI-Kayiem, and Mustafa, AT. Solar Vortex Engine, Malaysia Patent; PI2015702890, 2015.
  8. HH. Al-Kayiem, AT. Mustafa, SI. Gilani, Solar vortex engine: Experimental modelling and evaluation, Renewable Energy 2018; 121: 389-399. https://doi.org/10.1016/j.renene.2018.01.051
  9. A. Ismaeel, H. Al-Kayiem, A. Baheta, M. Aurybi, Numerical analysis on the influence of inflow guide vanes in A solar vortex power generator, WIT Transactions on Ecology and the Environment 2017; 224: 553-563. https://doi.org/10.2495/ESUS170511
  10. P. Das, V. Chandramohan, Estimation of flow parameters and power potential of solar vortex engine (SVE) by varying its geometrical configurations: A numerical study, Energy Conversion and Management 2020; 223: 113272. https://doi.org/10.1016/j.enconman.2020.113272
  11. P. Das, Performance evaluation of solar vortex engine and optimization of number of air entry slots and turbine location, Energy Sources, Part A: Recovery, Utilization, and Environmental Effects 2020; 1-17. https://doi.org/10.1080/15567036.2020.1845879
  12. AA. Ismaeel, HH. Al-Kayiem, AT. Baheta, MA. Aurybi, CFD modeling of artificial vortex air generator for green electric power, MATEC Web of Conferences, EDP Sciences, 2017, p. 02009. https://doi.org/10.1051/matecconf/201713102009
  13. H. Al-Kayiem, A. Mustafa, S. Gilani, Vortex field simulation and analysis of a solar updraft power engine, WIT Trans. Ecol. Environ. 2016; 205: 193-202. https://doi.org/10.2495/EQ160181
  14. M. Zhang, X. Luo, T. Li, L. Zhang, X. Meng, K. Kase, S. Wada, CW. Yu, Z. Gu, From dust devil to sustainable swirling wind energy, Scientific reports 2015; 5(1): 1-5. https://doi.org/10.1038/srep08322
  15. N. Ninic, S. Nizetic, Solar power plant with short diffuser, patent WO2009/060245 A 1 (2009).
  16. Ž. Penga, S. Nižetić, M. Arıcı, Solar plant with short diffuser concept: Further improvement of numerical model by included influence of guide vane topology on shape and stability of gravitational vortex, Journal of cleaner production 2019; 212: 353-361. https://doi.org/10.1016/j.jclepro.2018.12.021
  17. S. Nižetić, Ž. Penga, M. Arıcı, Contribution to the research of an alternative energy concept for carbon free electricity production: Concept of solar power plant with short diffuser, Energy Conversion and Management 2017; 148: 533-553. https://doi.org/10.1016/j.enconman.2017.05.062
  18. A. Mohiuddin, E. Uzgoren, Computational analysis of a solar energy induced vortex generator, Applied Thermal Engineering 2016; 98: 1036-1043. https://doi.org/10.1016/j.applthermaleng.2016.01.005
  19. L. Zuo, N. Qu, L. Ding, P. Dai, Z. Liu, B. Xu, Y. Yuan, A vortex-type solar updraft power-desalination integrated system, Energy Conversion and Management 2020; 222: 113216. https://doi.org/10.1016/j.enconman.2020.113216
  20. S. Nizetic, F. Grubisic-Cabo, M. Bugarin, Experimental Setup for the Analysis of Vortices, Journal of Applied Fluid Mechanics 2015; 8(1). https://doi.org/10.36884/jafm.8.01.22587
  21. MNA. Saadunand NAC. Sidik, Experimental Study on the Performance of Small Solar Updraft Tower in the ClimateRegion.International Journal OF Automotive AND Mechanical Engineering 2020; 17(4): 8372-8383. https://doi.org/10.15282/ijame.17.4.2020.13.0633
  22. N. Jamaludin, NI. Mohammed, MF. Khamidi, SNA. Wahab, Thermal comfort of residential building in Malaysia at different micro-climates, Procedia-Social and Behavioral Sciences 2015; 170: 613-623. https://doi.org/10.1016/j.sbspro.2015.01.063