Effect of Tip Clearance on The Thermal and Hydrodynamic Performance of A Shrouded Pin Fin Array  

Oleh:

Moores, Kevin A. ; Joshi, Yogendra K.

Jenis: Article from Bulletin/Magazine
Dalam koleksi: Journal of Heat Transfer vol. 125 no. 6 (Dec. 2003), page 999-1006.
Topik: pin fin; tip clearance; thermal; hydrodynamic performance; pin fin array

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ90.7 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

The effect of introducing tip clearance to a liquid cooled array of shrouded pins fins is examined. Three arrays of height to diameter ratio ranging from 0.5 to 1.1 were evaluated experimentally. The arrays were exposed to a uniform heat flux of 0.02 to 0.26 W / mm(2) and cooled with water through a nominal Reynolds number range of 200 to 10,000. Tip clearance of 0 to 25 % of pin height was assessed. Mean heat transfer rates and adiabatic pressure drop across the array were determined and empirical correlations are proposed. The introduction of clearance was seen to increase overall heat transfer in some cases.

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