Cryogenic Modeling of the Heat Transferred by Combined Convection From a Vertical Cylinder in a Horizontal Flow
Clark, George Leslie, Jr.
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https://hdl.handle.net/2142/70108
Description
Title
Cryogenic Modeling of the Heat Transferred by Combined Convection From a Vertical Cylinder in a Horizontal Flow
Author(s)
Clark, George Leslie, Jr.
Issue Date
1982
Department of Study
Mechanical Engineering
Discipline
Mechanical Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Engineering, Mechanical
Abstract
Prediction of the convective loss from solar thermal-electric receivers is not presently feasible since the scientific basis for such a prediction is not available. These receivers will typically operate in the combined convection region (Gr(,L)/Re(,D)('2) (TURNEQ) 1) with Reynolds numbers above 10('6) and Grashof numbers exceeding 10('11), well above previously reported experimental data. A novel heat transfer technique, the use of cryogenic temperatures for convective modeling, was used in the present investigation to significantly extend the region of measured data for combined convection from a vertical cylinder in a horizontal flow. Reynolds numbers above 5 x 10('5), with Grashof numbers above 10('11), were achieved in a cryogenic heat transfer tunnel which was constructed for this research.
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