Results of experimental investigations of the average heat transfer from five-row staggered bundles of tubes with knurled spiral fins, operating in the free air-convection regime, in the case where the angel of inclination of the longitudinal axis of the tubes changed from 0 to 60° are presented. The investigations were carried out by the method of complete heat simulation. The average heat transfer was measured in the direction of a free air flow in each row of a tube bundle. The experimental data were generalized by similarity equations for calculating the average heat transfer from the tube bundles and their individual rows in the range of change in the Rayleigh number characteristic of the operating conditions of industrial heat exchangers assembled from finned tubes of the type of the above-indicated tubes.
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Yu. N. Vasil’ev and G. A. Margolin, Systems of Cooling Compressor and Petroleum Refining Stations [in Russian], Nedra, Moscow (1977).
N. P. Kryukov, Air Cooling Apparatuses [in Russian], Khimiya, Moscow (1983).
A. V. Samorodov, Improvement of Methods for Thermal Calculation and Design of Air Cooling Apparatuses with Staggered Finned Bundles, Author’s Abstract of Candidate Dissertation (in Engineering), St. Petersburg State Technical University, St. Petersburg (1989).
G. V. Bakhmat, N. V. Eremin, and O. A. Stepanov, Apparatuses of Air Cooling of a Gas at Compressor Stations [in Russian], Nedra, St. Petersburg (1994).
A. V. Samorodov, Calculation of radiation heat transfer of round-finned tubes and bundles, in: Transactions of Forest Engineering Faculty of Petrozavodsk State University, Issue 2 (1999). pp. 135–142.
A. V. Samorodov, R. F. Telyaev, and V. B. Kuntysh, Technique of thermal calculation of air-cooling apparatus in the regime of free air convection, Izv. Vyssh. Uchebn. Zaved., Problemy Énergetiki, Nos. 1–2, 20–30 (1002).
O. G. Martynenko and Yu. A. Sokovishin, Free-Convective Heat Transfer: Handbook [in Russian], Nauka i Tekhnika, Minsk (1982).
S. G. Gusev and G. G. Shklover, Free-Convective Heat Transfer with Flow around Bodies [in Russian], Énergoatomizdat, Moscow (1992).
O. O. Mil’man and B. A. Aleshin, Experimental investigation of heat transfer in natural circulation of air in a model of an air condenser with an exhaust shaft, Teploénergetika, No. 5, 16–19 (2005).
A. V. Samorodov, Investigation of free-convective heat transfer of three-row staggered inclined tube bundles with knurled spiral fins, Izv. Vyssh. Uchebn. Zaved., Énergetika, No. 2, 76–82 (1998).
A. V. Pozdnyakova and V. B. Kuntysh, Heat transfer of adaptor in-line–staggered finned tube bundles in natural convection of air, Izv. Vyssh. Uchebn. Zaved., Problemy Énergetiki, Nos. 9–10, 15–19 (2000).
V. B. Kuntysh, A. V. Pozdnyakova, and A. V. Samorodov, Investigation and comparison of the intensity of free-convective heat transfer of in-line and staggered bundles of tubes with spiral fins in an unbounded air space, in: Physical Principles of Experimental and Mathematical Modeling of the Processes of Gas Dynamics and Heat Transfer in Power Plants, Proc. 13th School-Seminar of Young Scientists and Specialists under the supervision of A. I. Leont’ev, Academician of the Russian Academy of Sciences, Vol. 2, Izd. MÉI, Moscow (2001), pp. 313–316.
V. B. Kuntysh, A. V. Samorodov, and A. N. Bessonnyi, Experimental investigation of free-convective heat transfer of multirow staggered bundles of tubes with spiral aluminum fins, Khim. Neftegaz. Mashinostr., No. 3, 3–8 (2008).
V. B. Kuntysh and A. N. Bessonnyi (Eds.), Principles of Calculation and Design of Air-Cooling Heat Exchangers: Handbook [in Russian], Nedra, St. Petersburg (1996).
A. V. Samorodov, S. P. Roshchin, and V. B. Kuntysh, Radiative heat exchange of a single tube with the environment, in: Collection of Scientific Papers "Environment Protection and Rational Use of Natural Resources," Arkhangel’sk State Technical University, Arkhangel’sk, Issue II (1997), pp. 102–113.
A. V. Samorodov and V. B. Kuntysh, Influence of the inclination of a one-row bundle of tubes with spiral fins on the free-convective heat transfer, in: Collection of Scientific Papers "Environment Protection and Rational Use of Natural Resources," Arkhangel’sk State Technical University, Arkhangel’sk, Issue I (1996), pp. 63–69.
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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 83, No. 2, pp. 338–344, March–April, 2010.
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Kuntysh, V.B., Samorodov, A.V. Influence of the angle of inclination of round-finned tubes in a staggered tube bundle on the free convective heat exchange between it and an unbounded air space. J Eng Phys Thermophy 83, 358–365 (2010). https://doi.org/10.1007/s10891-010-0352-0
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DOI: https://doi.org/10.1007/s10891-010-0352-0