22Oct 2018

NUMERICAL SIMULATION OF MIXED CONVECTIVE COOLING IN A HIGH RESIDENTIAL BUILDING DIVIDED INTO THREE STORIES.

  • Laboratoire Sur l?Energie Solaire /Groupe Ph?nom?ne de Transfert et Energ?tique - Universit? de Lom? 01 BP 1515 Lom? 01?Togo.
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Mixed convection heat transfer in a ventilated high building is numerically studied by solving mixed convection equations with the Boussinesq approximation. The present investigation deals with velocity and temperature distribution in a high building divided into three stories; in which the left heated wall is vented by a fresh air stream introduced at various inlet openings and hot waste air exits from different outlet openings. Numerical solutions of the Navier Stokes equations and energy equation have been solved by the Thomas? algorithm. Solutions are presented for various geometrical aspect ratios and for different values of Grashof and Reynolds numbers. The results are presented in terms of streamlines, isotherms, velocity, and heat transfer versus the governing control parameters in detail.


  1. Raji, M. Hasnaoui. Mixed convection heat transfer in ventilated cavities with opposing and assisting flows. http://www.emerald-library.com.PP 556 - 572.
  2. Dubovsky V, Ziskind G, Druckman S, Moshka E, Weiss Y, Letan R. Natural convection inside ventilated enclosure heated by downward-facing plate: experiments and numerical simulations. International Journal of Heat and Mass Transfer 2001;44(16): 3155?68.
  3. Druckman S, Moshka E, Dubovsky V, Letan R, Weiss Y,Ziskind G. Visualization of natural convection inside a ventilated enclosure. Proceedings of the Ninth International Symposium on Flow Visualization, Edinburgh, 2000.
  4. Deng, Q.H., Zhou, J., Mei, C., Shen, Y.M., 2004. Fluid, heat and contaminant transport structures of laminar double-diffusive mixed convection in a two-dimensional ventilated enclosure. Int. J. Heat Mass Transfer 47, 5257?5269. Laboratory, Department of Mechanical Engineering, Ben-Gurion University of the Negev, 2000.
  5. Glat Y, Aviv A. Ventilation of an enclosure by natural convection with a hot vertical plate in the chimney. Graduation Project 00-04 (supervised by R. Letan and Y. Weiss), Heat Transfer Laboratory, Department of Mechanical Engineering, Ben-Gurion University of the Negev, 2000.
  6. Hsu, T.H., Hsu, P.T., How, S.P., 1997. Mixed convection in a partially divided rectangular enclosure. Numer. Heat Transfer Part A 31, 655?683.
  7. Catton. Natural convection in enclosures, in: Proceedings of 6th Int. Heat Transfer Conference, Toronto Vol. 6 (1979), pp. 13?43.
  8. L. Lage, A. Bejan, R. Anderson, Efficiency of transient contaminant removal from a slot ventilated enclosure, Int. J. Heat Mass Transfer 34 (10). 1991. 2603?2615.
  9. L. Lage, A. Bejan, R. Anderson, Removal of contaminant generated by a discrete source in a slot ventilated enclosure, Int. J. Heat Mass Transfer 35 (5). _1992. 1169?1180.
  10. Manca, O., Nardini, S., Khanafer, K., Vafai, K., 2003. Effect of heated wall position on mixed convection in a channel with an open cavity. Numer. Heat Transfer Part A 43, 259?282.
  11. Mazal B, Medina O. Ventilation control in a multi-storey structure. Graduation Project 01-80 (supervised by R. Letan and G. Ziskind),Heat Transfer Laboratory, Department of Mechanical Engineering,Ben-Gurion University of the Negev, 2001.
  12. Oosthuizen, P.H., Paul, J.T., 1985. Mixed convective heat transfer in a cavity. ASME HTD 42, 159?169.
  13. Papanicolaou, E., Jaluria, Y., 1990. Mixed convection from an isolated heat source in a rectangular enclosure. Numer. Heat Transfer Part A18, 427?461.
  14. Papanicolaou, E., Jaluria, Y., 1993. Mixed convection from a localized heat source in a cavity with conducting walls: a numerical study. Numer. Heat Transfer Part A 23, 463?484.
  15. Papanicolaou, E., Jaluria, Y., 1994. Mixed convection from simulated electronic components at varying relative positions in a cavity. ASME J. Heat Transfer 116, 960?970.
  16. Letan, V. Dubovsky, G. Ziskind. Passive ventilation and heating by natural convection in a multi-storey building. Building and Environment 38 (2003) 197 ? 208
  17. Raji, A., Hasnaoui, M., 1998a. Mixed convection heat transfer in a rectangular cavity ventilated and heated from the side. Numer. Heat Transfer Part A 33, 533?548.
  18. Raji, A., Hasnaoui, M., 2000. Mixed convection heat transfer in ventilated cavities with opposing and assisting flows. Eng. Comput. Int. J. Comput.-Aided Eng. Softw. 17, 556?572.
  19. Singh, S., Sharif, M.A.R., 2003. Mixed convective cooling of a rectangular cavity with inlet and exit openings on differentially heated side walls. Numer. Heat Transfer Part A 44, 233?253.
  20. Ostrach, Natural convection in enclosure, in: J.P. Hartnell, T.F. Irvine _Eds.., Advances in Heat Transfer Vol. 8 Academic Press,New York, 1972.
  21. Woods L.C., A note of numerical solution of fourth differential equations, Aero. Q. 5 (1954) 176-l 84.
  22. Ziskind G, Dubovsky V, Letan R. Ventilation by natural convection of a one-storey building. Energy and Buildings 2002;34(1):93?104.
  23. Ziskind G, Dubovsky V, Letan R. Removal of contaminants by induced 9ow inside structures, paper HTD-24329, vol. 5. Proceedings of ASME International Mechanical Engineering Congress and Exposition, New York, November 2001. ASME Heat Transfer
  24. Division, Book No. I00530.

[Yawovi Nougblega, Hodo Abalo Samah, Kokou N wuitcha, Kodjo Kpode and Magolmeena Banna (2018); NUMERICAL SIMULATION OF MIXED CONVECTIVE COOLING IN A HIGH RESIDENTIAL BUILDING DIVIDED INTO THREE STORIES. Int. J. of Adv. Res. 6 (Oct). 1461-1479] (ISSN 2320-5407). www.journalijar.com


Yawovi Nougblega
Laboratoire Sur l’Energie Solaire /Groupe Phénomène de Transfert et Energétique - Université de Lomé01 BP 1515 Lomé 01–Togo, Tel +228 225 50 94 Fax: + 228 221 85 95

DOI:


Article DOI: 10.21474/IJAR01/7956      
DOI URL: https://dx.doi.org/10.21474/IJAR01/7956