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Fakulteta za strojništvo, Ljubljana (FSLJ)
  • Surface effects on pool boiling CHF
    Ferjančič, Klemen ; Golobič, Iztok
    The influence of the surface of horizontally and vertically oriented ribbon heaters made of stainless steel 302 or steel 1010 on pool boiling CHF in FC-72 or H2O was studied. The ribbon was 50 mm ... long, 5 mm high and 76.4 um thick. Surface treatment was performed with different sandpapers and etching in diluted acid. In the centre line average Ra range from 0.02 to 1.5 um, the pool boiling CHF on stainless steel 302 ribbon heaters in FC-72 increased from 87.6 to 115.4 kW/m2 and in H2O it increased from 410.8 to 499.7 kW/m2, while for steel 1010 ribbon heaters the CHF increased in H2O from 309.7 to 443.9 kW/m2. On an etched heater surface, pool boiling CHF in H2O on both stainless steel 302 and steel 1010 increased by 51% with respect to a sanded surface with the same Ra. It appears that a multiparametric heating surface characteristic and the surface chemistry parameters need to be included in the study.
    Vir: Experimental thermal and fluid science. - ISSN 0894-1777 (Vol. 25, no. 7, special issue, 2002, str. 565-571)
    Vrsta gradiva - članek, sestavni del ; neleposlovje za odrasle
    Leto - 2002
    Jezik - angleški
    COBISS.SI-ID - 4835867

    Povezava(-e):

    http://www.sciencedirect.com/science/journal/08941777

    DOI: 10.1016/S0894-1777(01)00104-2

    Dostop do polnega teksta za člane



vir: Experimental thermal and fluid science. - ISSN 0894-1777 (Vol. 25, no. 7, special issue, 2002, str. 565-571)

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