Detail A Transient Formulation of Newton’s Cooling Law for Spherical Bodies   Oleh:  Heikal, M. R. ; Sazhin, S. S. ; Gol'dshtein, V. A. Jenis: Article from Bulletin/Magazine Dalam koleksi: Journal of Heat Transfer vol. 123 no. 1 (Feb. 2001), page 63-64. Topik: Newton; transient formulation; newton's cooling law; spherical bodies Ketersediaan Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ90.4 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada     Lihat Detail Induk Isi artikel Newton's law of cooling is shown to underestimate the heat flux between a spherical body (droplet) and a homogeneous gas after this body is suddenly immersed into the gas. This problem is rectified by replacing the gas thermal conductivity by the effective thermal conductivity. The latter reduces to the gas thermal conductivity in the limit of t --> s , but can be substantially higher in the limit of t --> 0. In the case of fuel droplet heating in a medium duty truck Diesel engine the gas thermal conductivity may need to be increased by more than 100 percent at the initial stage of calculations to account for transient effects during the process of droplet heating. Opini Anda Klik untuk menuliskan opini Anda tentang koleksi ini! Kembali

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