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Free Convective Motion of Air in a Heated Space

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Journal of Engineering Physics and Thermophysics Aims and scope

The evolution properties of free convective motion of air in a heated space have been investigated by numerical modeling. The air motion is always nonstationary and turbulent. The existing technical constraint on the grid scale makes it possible to observe only large-scale eddies. In actual practice, eddies have different dimensions and are always in motion near the midposition; they can disappear and appear again. The larger the eddy size, the smaller the amplitude of fluctuations of the air temperature and velocity in them. The most intense motion is near the window and the heating appliance. At low outdoor temperatures, it is highly likely that a flow of cold air moving over the lower part of the space will appear from the window.

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References

  1. E. Orlando (Ed.), Energy Plus. Engineering Reference, University Illinois and University of California (2013); http://energy.gov/eere/office-energy-efficiency-renewable-energy.

  2. S. Wonorahardjo, I. M. Sutjahja, and D. Kurnia, Potential of coconut oil for temperature regulation in tropical houses, J. Eng. Phys. Thermophys., 92, No. 1, 80–88 (2019).

    Article  Google Scholar 

  3. K. O. Sabdenov, Minimax analysis of economic and energy effi ciencies of heat-supply pipelines, J. Eng. Phys. Thermophys., 89, No. 6, 1401–1409 (2016).

    Article  Google Scholar 

  4. K. O. Sabdenov and T. M. Baitasov, Optimal (energy efficient) heat supply to buildings in central heating system, Bulletin of the Tomsk Polytechnic University, Geo Assets Engineering, 326, No. 8, 53–59 (2015).

  5. Yu. A. Tabunshchkov and M. M. Brodach, Mathematical Modeling and Optimization of Thermal Efficiency of Buildings [in Russian], Izd. AVOK-PRESS, Moscow (2002).

  6. Shunian Qiu, Fan Feng, Weijie Zhang, Zhengwei Li, and Zhenhai Li, Stochastic optimized chiller operation strategy based on multi-objective optimization considering measurement uncertainty, Energy Build., 195, 149–160 (2019).

  7. B. I. Basok, A. I. Nakorchevskii, S. M. Goncharuk, and L. N. Kuzhel′, Experimental investigations of heat transfer through multiple glass units with account for the action of exterior factors, J. Eng. Phys. Thermophys., 90, No. 1, 88–94 (2017).

  8. Dahai Qi, Sherif Goubran, Liangzhu (Leon) Wang, and Radu Zmeureanu, Parametric study of air curtain door aerodynamics performance based on experiments and numerical simulations, Build. Environ., 129, 65–73 (2018).

  9. Siren Kai, Technical dimensioning of a vertically upwards-blowing air curtain — Part II, Energy Build., 35, Issue 7, 697–705 (2003).

  10. Tobias Kempe and Andreas Hantsch, Large-eddy simulation of indoor air flow using an efficient finite-volume method, Build. Environ., 115, 291–305 (2017).

  11. N. B. Kaye, Y. Ji, and M. J. Cook, Numerical simulation of transient flow development in a naturally ventilated room, Build. Environ., 44, 889–897 (2009).

    Article  Google Scholar 

  12. E. A. Ryabova, Heat-Transfer Processes in the Case of Local Superheating of the Interior Surface of Production Areas, Candidate′s Dissertation in Technical Sciences, Odessa (2015).

  13. Senwen Yang, Hatem Alrawashdeh, Cheng Zhang, Dahai Qi, Liangzhu (Leon) Wang, and Ted Stathopoulos, Wind effects on air curtain performance at building entrances, Build. Environ., 151, 75–87 (2019).

  14. L. G. Loitsyanskii, Mechanics of Liquids and Gases [in Russian], 7th edn., Drofa, Moscow (2003).

  15. P. J. Roach, Computational Fluid Dynamics, Hermosa Press, Albuquerque, New Mexico (1982).

  16. N. N. Kalitkin, Numerical Methods [in Russian], Nauka, Moscow (1978).

  17. H. G. Schuster, Deterministic Chaos. An Introduction, Wiley-VCH (2004).

  18. I. V. Miroshnichenko and M. A. Sheremet, Turbulent natural convection and surface radiation in a closed air cavity with a local energy source, J. Eng. Phys. Thermophys., 90, No. 3, 557–563 (2017).

    Article  Google Scholar 

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Correspondence to K. O. Sabdenov.

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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 93, No. 1, pp. 170–177, January–February, 2020.

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Unaspekov, B.A., Sabdenov, K.O., Erzada, M. et al. Free Convective Motion of Air in a Heated Space. J Eng Phys Thermophy 93, 164–171 (2020). https://doi.org/10.1007/s10891-020-02104-9

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  • DOI: https://doi.org/10.1007/s10891-020-02104-9

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