Hysteresis characteristics of boiling heat transfer from copper fibrous porous structures

• Autorzy: Wójcik T.
• Języki publikacji: EN

Abstrakty

EN

The paper presents an experimental study of boiling on heating surfaces covered with copper fibrous porous layers used as a filling of heat pipes. The knowledge of thermal characteristics of capillary-porous structures is indispensable in the design and construction of heat exchangers utilizing the concept of heat pipes. Experiments were carried out for pool boiling of distilled water, ethanol, refrigerant R-123 and refrigerant R-113 on lavers of 40, 70 and 85 % porosity. Porous surface significantly enhances heat transfer in comparison to a smooth one. Among four different types of hysteresis observed, a new one of h-type was discovered. It can be applied to control the temperature of the heating surface.

Słowa kluczowe

EN

boiling heat transfer; hysteresis; porous structures

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2003
• Tom: Vol. 24, no 2
• Strony: 37--54
• Opis fizyczny: Bibliogr. 10 poz.,Rys., tabl.,

Twórcy

autor

Wójcik T.

• Kielce University of Technology, Al. Tysiąclecia Państwa Polskiego 7, 25-314 Kielce

Bibliografia

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