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Detail
ArtikelReduced Pressure Boiling Heat Transfer in Rectangular Microchannels With Interconnected Reentrant Cavities  
Oleh: Peles, Yoav ; Kosar, Ali ; Kuo, Chih-Jung
Jenis: Article from Bulletin/Magazine
Dalam koleksi: Journal of Heat Transfer vol. 127 no. 10 (Oct. 2005), page 1106-1114.
Topik: resonant cavities; boiling; heat transfer; rectangular microchannel; interconnected; reentrant cavities
Ketersediaan
  • Perpustakaan Pusat (Semanggi)
    • Nomor Panggil: JJ90.10
    • Non-tandon: 1 (dapat dipinjam: 0)
    • Tandon: tidak ada
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Isi artikelBoiling flow of deionized water through 227 µm hydraulic diameter microchannels with 7.5 µm wide interconnected reentrant cavities at 47 kPa exit pressure has been investigated. Average two-phase heat transfer coefficients have been obtained over effective heat fluxes ranging from 28 to 445 W/cm(2) and mass fluxes from 41 to 302 kg/m(2) s. A map is developed that divides the data into two regions where the heat transfer mechanisms are nucleation or convective boiling dominant. The map is compared to similar atmospheric exit pressure data developed in a previous study. A boiling mechanism transition criterion based on the Reynolds number and the Kandlikar k1 number is proposed.
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