Author: Allan R. LazarusPublisher:
ISBN:
Category :
Languages : en
Pages : 38
Book Description
An Experimental Investigation of Natural Convection Heat Transfer from Horizontal Flat Plates
Author: Allan R. LazarusNatural Convection Heat Transfer in Liquid Metals
Author: Neil William DaviesPublisher:
ISBN:
Category :
Languages : en
Pages : 160
Book Description
This thesis describes an experimental investigation of natural convection heat transfer to sodium from a flat plate with its heated surface facing in a downward direction. The electrically heated plate, 316mm long and 30Omm wide, is immersed in a sodium pool, 690m long, 33Omm wide and 600mm deep; the latter is cooled externally by a highly-rated air cooler. The plate heating is divided into six independently controllable sections so that the surface heat flux can be varied along the length of the plate. Experiments were carried out with the heater plate in two positions: with the plate horizontal, and then inclined at 15.15 degrees to the horizontal, in both cases with the heated surface facing downwards. For the horizontal downward-facing position and uniform surface heat flux conditions, the experimental values of mean Nusselt number are approximately 20% higher than the best available theory. The shape of the surface temperature distribution shows good agreement with theory, but the boundary-layer temperature profiles show poor agreement with theory. Tests with non-uniform heat flux distributions are also reported. For the heater plate inclined downwards at 15.15 degrees to the horizontal and uniform surface heat flux conditions, the experimental values of local Nusselt number are approximately 10% lower than those predicted by similarity theory for a vertical plate, with the Grashof number modified by the tangential gravity component to take account of the surface inclination. Boundary-layer temperature profiles show approximate agreement with theory. Tests with non-uniform heat flux distributions are also reported. The experimental results have application in the design of internal core debris catchers for sodium-cooled fast breeder nuclear reactors.
Experimental Study of Natural Convection Heat Transfer from a Vertical Array of Narrow Horizontal Flat Plates
Author: Sun Moo ChyuAn Experimental Investigation of Free Convection Heat Transfer from a Nonisothermal Vertical Flat Plate
Author: Richard Cecil HillPublisher:
ISBN:
Category : Heat
Languages : en
Pages : 210
Book Description
An Experimental Study of Natural Convection Heat Transfer to Non-Newtonian Fluids from Isothermal Vertical and Horizontal Flat Plates
Author: Kewal Krishnan SharmaPublisher:
ISBN:
Category :
Languages : en
Pages : 210
Book Description
Investigation of Free Convection Heat Transfer from an Inclined Flat Plate
Author: Phairojna Sang-UraiPublisher:
ISBN:
Category : Heat
Languages : en
Pages : 166
Book Description
"The experimental investigation was conducted to determine temperature distribution and convective heat transfer coefficients in terms of Nusselt number for an inclined heated flat plate in air. The heated surface of the aluminum flat plate was set facing upward and moved through seven positions from the vertical to the horizontal. The investigation shows that the local Nusselt number can be predicted by Kiekus's solution within 12 per cent for inclination angles from the vertical through 75° from the vertical. In the case of the vertical position, Eckert's solution gives a better prediction. For the horizontal position the results show good agreement with the equation which is recommended by McAdams, with 8 per cent"--Abstract, leaf ii.
An Experimental Study of Natural Convection Heat Transfer to Non- Newtonian Fluids from Isothermal Vertical and Horizontal Flat Plates
Author: Irvine Glenn ReillyFree Convection Heat Transfer from an Inclined Heated Flat Plate in Air
Author: Shu Chien YungPublisher:
ISBN:
Category : Heat
Languages : en
Pages : 160
Book Description
"An experimental investigation has been performed to determine the free convection heat transfer from a heated flat plate in air moved from the vertical position through three inclined positions to the horizontal position. The hot surface of the plate was facing downward for the horizontal and three inclined positions. Tests were performed at plate surface temperatures from 120°F up to 404°F. Data for the plate surface temperature at about 165°F with the plate in the vertical position agrees very well with previous experimental work. This same data was used to determine a new parameter, introduced into the Pholhausen free convection boundary layer equation, to account for the angular position of the plate as it is moved from the vertical to the horizontal position. Use of this modified equation results in a convergence of all data to one normalized curve"--Abstract, leaf ii.
Experimental Investigation of Natural Convection about an Isothermal Vertical Heated Flat Plate in the Presence of a Proximate Wall
Author: Sheikh Abdul NayeemExperimental investigation of natural convection heat transfer on inclined surfaces
Author: Donald Charles RossPublisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 186
Book Description