Analysis of boiling heat transfer from a microstructure - covered fin

• Autorzy: Orzechowski T.
• Języki publikacji: EN

Abstrakty

EN

The one-dimensional equation presented here concerns the transfer of heat in a fin covered with a structure intensifying the heat exchange. Stochastic parameters of the microstructure were determined using the normalised probability density function. The equation was solved for a regular coating in the form of rectangular microfins, assuming that there is power dependence of the heat transfer coefficient on wall superheat. Verifying experimental studies were carried out on a multilayer copper mesh structures with water boiling at atmospheric pressure. For a flat copper fin covered with a various number of mesh layers, the superficial distribution of temperature along the fin was registered by means of a THV-550 SW thermovision camera. The results were used to calculate the heat flux transported by the fin for three mesh layers with a different thickness and compared with results obtained for plain surface. Methodology of the analysis of results and calculation has been provided, too. It was found that the results of calculation were compatible with the results of experiment.

Słowa kluczowe

EN

boiling heat transfer; fin; microstructure; thermovision

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2001
• Tom: Vol. 22, nr 3-4
• Strony: 77--94
• Opis fizyczny: Bibliogr. 23 poz.,Rys., tab.,

Twórcy

autor

Orzechowski T.

• Kielce University of Technology, al. 1000-lecia PP, 25-314 Kielce

Bibliografia

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