Free Convection Heat Transfer to Horizontal Cylinders From an Ordinary Fluid Containing a Volume Heat Source

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Outside heat transfer coefficients for several horizontal tubes cooling an ordinary fluid containing a volume heat source by free convection were obtained experimentally. Water was used as the coolant, and a very dilute solution of HC1 was the bulk fluid. The basic equipment included a Lucite test cell which contained the bulk fluid, Cu screen grids through which an alternating current was passed to generate a volume heat source in the bulk and several horizontal 1/4 in. O.D. stainless steel tubes through which the coolant was pumped. Experiments were conducted using a single-tube, four-tube, and five-tube geometry. The heat transfer ... continued below

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Pages: 101

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de Guzman, J. P. January 1, 1958.

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  • Princeton University
    Publisher Info: Purdue Univ., Lafayette, Ind.
    Place of Publication: Lafayette, Indiana

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Description

Outside heat transfer coefficients for several horizontal tubes cooling an ordinary fluid containing a volume heat source by free convection were obtained experimentally. Water was used as the coolant, and a very dilute solution of HC1 was the bulk fluid. The basic equipment included a Lucite test cell which contained the bulk fluid, Cu screen grids through which an alternating current was passed to generate a volume heat source in the bulk and several horizontal 1/4 in. O.D. stainless steel tubes through which the coolant was pumped. Experiments were conducted using a single-tube, four-tube, and five-tube geometry. The heat transfer coefficients obtained were considered accurate within 8%. With single-tube cooling, the heat transfer coefficients were correlated by Nu = 0.49 (Gr Pr)/sup 1/4/. With four cooling tubes, the data were correlated by Nu = 0.59 (Gr Pr)/sup 1/4/, while with five cooling tubes the value of the coefficients in the correlation equation was Nu = 0.64 (Gr Pr)/sup 1/4/. (auth)

Physical Description

Pages: 101

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  • Other Information: Orig. Receipt Date: 31-DEC-58

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  • Report No.: AECU-3579
  • Grant Number: AT(11-1)-432
  • DOI: 10.2172/4349853 | External Link
  • Office of Scientific & Technical Information Report Number: 4349853
  • Archival Resource Key: ark:/67531/metadc1024385

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  • January 1, 1958

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  • Oct. 15, 2017, 10:09 p.m.

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  • May 14, 2018, 11:23 a.m.

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de Guzman, J. P. Free Convection Heat Transfer to Horizontal Cylinders From an Ordinary Fluid Containing a Volume Heat Source, thesis or dissertation, January 1, 1958; Lafayette, Indiana. (digital.library.unt.edu/ark:/67531/metadc1024385/: accessed October 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.