Numerical Investigations on Solar Chimney Inclination Angle for Room Ventilation

  • Authors

    • Ass.Prof. Dr. Abbas J. Jubear
    • Ali Dhahi Ghareer
    2018-11-27
    https://doi.org/10.14419/ijet.v7i4.17.21794
  • Natural ventilation, Multi chimney, roof solar chimney, thermal performance.

  • This paper presents a developed model of the  roof solar chimney (RSC) and thermal performance predict using the simulation program Ansys Fluent 18 and solid work software 2016. This work is carried out under the climatic conditions of the city of Kut-Iraq. This study is based on the analysis the thermal performance of the solar chimney at different inclination angles (30o, 45o, and 60o) with south and west direction. The results of the analysis showed that the solar chimney at a 45° angle gives the best thermal performance and provides a good ventilation rate. This model has been developed with the use of multi chimney tilted at a 45° angle in the same room. The arrangement of solar chimneys is in the two directions, one in the south and  the second  in the western direction. In this study, a several parameters were studied (angle of inclination, solar intensity, chimney direction, and ambient temperature), which significantly affect ventilation rates. The results showed that the use of the developed model leads to improved ventilation rates by 31.9 % and reduce average temperature are 1.34 oC.

     

     

  • References

    1. [1] M. H. Majeed, A. M. Ali , Passive solar heating of a space, IOSR Journal of Mechanical and Civil Engineering Volume 13, Issue 6 Ver .V (Nov. -Dec. 2016), PP 101-107.

      [2] H. Al-Kayiem, Y .M. Heng, Experimental investigation of roof top solar chimney for natural ventilation, ARPN Journal of Engineering and Applied Sciences VOL. 10, NO 21, NOVEMBER, 2015.

      [3] M. A. Kumar, U. Krishnaveni, Analysis of solar chimney with evaporative cooling cavity to improve indoor air quality, Journal of Chemical and Pharmaceutical

      [4] Sciences Issue 6: March 2015 .

      [5] M. Mahdavinejad, M. Fakhari, F. Alipoor, The study on optimum tilt angle in solar chimney as a mechanical.

      [6] N.Saifi, N.Settou, B.Dokkar, B. Negrou, N.Chennouf, Experimental study and simulation of airflow in solar chimneys, Energy Procedia 18 ( 2012 ) 1289 – 1298.

      [7] A. A. Imran, J. M. Jalil, S. T. Ahmed, Induced flow for ventilation and cooling by a solar chimney, Renewable Energy 78 (2015) 236e244.

      [8] L. P. Chung, H. Ahmad, D. R. Ossen, M. Hamid, Effective solar chimney cross section ventilation performance in Malaysia terraced house, Social and Behavioral Sciences 179(2015) (2014) 276-289.

      [9] Mathur, S.R. Murthy, Coupled ordinates method for multigrid acceleration of radiation calculations, Journal of Thermo physics and Heat Transfer. 13(4): p. 467-473,1999.

      [10] R. Bassiouny, N. S. A. Koura, An analytical numerical study of solar chimney use for room natural ventilation , Energy and Buildings, 40(5) (2008) 865-873.

      [11] D. Park, The Application of the Solar Chimney for Ventilating Buildings. October 13, 2016.

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  • How to Cite

    Dr. Abbas J. Jubear, A., & Dhahi Ghareer, A. (2018). Numerical Investigations on Solar Chimney Inclination Angle for Room Ventilation. International Journal of Engineering & Technology, 7(4.17), 1-9. https://doi.org/10.14419/ijet.v7i4.17.21794