Influence of pollutions on the thermal characteristics, heat efficiency and optimal dimensions of tubes with londitudinal fins

• Autorzy: Gorobets V. , Mendeleyev V.
• Języki publikacji: EN

Abstrakty

EN

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

EN

pollution; fin; tube; temperature

PL

zanieczyszczenia; rury; temperatura

• Wydawca: Polish Academy of Sciences, Branch in Lublin
• Czasopismo: ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
• Rocznik: 2012
• Tom: Vol. 1, No 1
• Strony: 35--40
• Opis fizyczny: Bibliogr. 20 poz., rys., tab.

Twórcy

autor

Gorobets V.

autor

Mendeleyev V.

• 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

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