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Języki publikacji
Abstrakty
In this report the results of experimental investigation on the influence of pollution on heat characteristics of tube with longitudinal fins are presented. The thickness of polluting on the finned surface in different time moments is measured. The dynamic of growth for polluted thickness is determined. As follows from experiments, the profile of polluting along the height of fins is near to trapezoidal. The temperature distributions in fins and total heat fl ux conducted by finned wall at the different time moments are found. The presence of pollution on the finned surface leads to change of temperature distribution in fins which substantially differ from the similar distributions for "clean" fins. The questions connected with the choice of the optimum dimensions of fins being polluted are discussed. It is shown that the optimum dimensions of fins are dependent on the value Biot number of polluting.
Słowa kluczowe
Czasopismo
Rocznik
Tom
Strony
35--40
Opis fizyczny
Bibliogr. 20 poz., rys., tab.
Twórcy
autor
autor
- Department of Electric and Electro Technology, Educational and research Institute of Energy and Automation, National University of Life and Environmental Sciences of Ukraine, Kyiv
Bibliografia
- 1. Kern D.Q., Kraus A.D. Extended Surface Heat Transfer, McGraw Hill, New York, 1972. 452 p.
- 2. Roizen L.I., Dulkin I.N. Teplovoi rastshet orebrennih poverhnostei, Energija, 1977. 254 s.
- 3. Barker J.J. The efficiency of the composite fins. Nucl. Sci. Eng., 1958, Vol. 3, p. 300–312.
- 4. Feijoo I., Davis H.T., Ramkrishna D. Heat transfer in the composite solids with heat generations. Journ. Heat Transfer, 1979, Vol. 101, p. 137–143.
- 5. Huang S.C., Chang Y.P. Heat conduction in unsteady, periodic, and steady state in laminated composites // Journ. Heat Transfer, 1980, Vol. 102, p. 742–748.
- 6. Gorobets V.G., Zozulja N.V., Novikov V.S. Vlijanije otlozhenii prjamoungolnogo profilja na teplovuju effektivnost prodolnogo rebra, Inzhenerno-fi zitsheskii zhurnal, 1982, T. 42, No. 6, s. 820–824.
- 7. Chu H., Weng C., Chen, C. Transient response of a composite straight fi n. Journ. Heat Transfer, 1983, Vol. 105, p. 307–311.
- 8. Ghoshdastidar P.S., Mukhopadhyay A. Transient heat transfer from a straight composite fin; f numerical solution by ADI. Int. Comm. Heat Mass Transfer, 1989, Vol. 19, p. 257–25.
- 9. Gorobets V.G. Lokalnije i integralnije kharakteristiki plastintshatogo rebra s maloteploprovodnim pokritijem, Promishlennaja teplotehnika, 1995, T. 17, No. 4, s. 23–28.
- 10. Mokheimer E.M.A., Antar M.A., Farooqi J., Zurair S.M. Analytical and numerical solution along with PC spread-sheets modeling for a composite fin. Int. Hourn. Heat Mass Transfer, 1997, Vol. 32, p. 229–238.
- 11. Gorobets V.G. Teplovoi rastshet i optimizatsija sostavnih reber, Trudi 2 Rosiiskoi natsionalnoi konferentsii po teploobmenu, 1998, T. 7, s. 65–67.
- 12. Lalot S., Tournier C., Jensen M. Fin efficiency of annular fins made of two materials. Int. Journ. Heat Mass Transfer, 1999, Vol. 42, No. 18, p. 3461–34668.
- 13. Gorobets V.G. Vlijanie neravnomernih zagrjaznjajusshih pokritii na teplootdatshu trub s prodolnim orebrenijem, Trudi 2 Rosiiskoi natsionalnoi konferentsii po teploobmenu, 2002, T. 7, s. 100–103.
- 14. Gorobets V.G. Issledovanije teploperenosa v sostavnoi orebrennoi stenke, romishlennaja teplotehnika, 2002, T. 24, No. 1, p. 24–28.
- 15. Gorobets V.G. Optimalnije razmeri prodolno orebrennoi stenki pokritijem, Promishlenaja teplotehnika, 2003, T. 25, No. 4, s. 65–67.
- 16. Xia Y., Jacobi A.M. An exact solution to steady heat condition in a two-dimensional slab on a one-dimensional fin: application to frosted heat exchangers. Int. Journ. Heat Mass Transfer, 2004, Vol. 47, p. 3317–3326.
- 17. Gorobets V.G. Vlijanije neizotermitshnosti na teplootdatshu putshka trub s plavnikovim orebrenijem pri nalitshii pokritii na vneshnei poverhnosti, Tezisi dokladov na 5 Mezhdunarodnom forume po teplo- i massoobmenu, Minsk, 2004, s. 58–60.
- 18. Gorobets V. Thermal efficiency and the optimum sizes of finned surfaces with coating. Proceeding of 13th Intern. Heat Transfer Conference. Sydney. Australia. 2006, Aug. 13-18, HTE-14, 13 p.
- 19. Gorobets V. Influence of coating on thermal characteristics and optimal sizes of fins, Journ. of Enhanced Heat Transfer, 2008, Vol. 15, No. 1, p. 65–80.
- 20. Gorobets V.G. Teplovaja effektivnost i optimalnije razmeri reber razlitshnogo profi lja pri nalitshii pokritija na teplooobmennoi poverhnosti, Promishlennaja teplotehnika, 2008, T. 30, No. 6, s. 45–47.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPS6-0001-0068