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[43110] Artykuł:

Visualization of pool boiling on plain micro-fins and micro-fins with sintered perforated foil

Czasopismo: Book of abstracts 7th European Thermal-Sciences Conference EUROTHERM 2016   Strony: 122
Opublikowano: Czerwiec 2016
 
  Autorzy / Redaktorzy / Twórcy
Imię i nazwisko Wydział Katedra Procent
udziału
Liczba
punktów
Robert Pastuszko orcid logoWMiBMKatedra Mechaniki**50.00  
Robert Kaniowski orcid logoWMiBMKatedra Mechaniki**50.00  

Grupa MNiSW:  Pozostałe publikacje (niepunktowane)
Punkty MNiSW: 0




Abstract:

The paper presents visualization investigations of boiling heat transfer over enhanced structures. The experiments were carried out for two kinds of enhanced surfaces: an array of 0.5 mm high micro-fins without covering (plain micro-fins designated as MF) and the surfaces made by sintering micro-fin tops with the copper perforated foil (MF+F). Pool boiling data at atmospheric pressure were obtained for saturated water, ethanol, FC-72 and Novec-649. Visualization studies aimed at identifying nucleation sites and determining the diameter and frequency of departing bubbles. Different pool boiling mechanisms were observed for the plain micro-fins and micro-fins covered with the porous structure.