Author: Kyung-Jin ChoiPublisher:
ISBN:
Category : Heat
Languages : en
Pages : 584
Book Description
Natural Convection Heat Transfer Within Horizontal Tube Bundles
Author: Kyung-Jin ChoiNatural Convection Heat Transfer from Horizontal Tube Bundles Immersed in Tilted Thin Enclosures
Author: Wei LiuNatural Convection Heat Transfer from Horizontal Tube Bundles
Author: E. S. TillmanEffect of Natural Convection on Heat Transfer in a Horizontal Tube
Author: David Phillip SiegwarthPublisher:
ISBN:
Category :
Languages : en
Pages : 82
Book Description
DEPARTMENT OF CHEMICAL AND METAKKURGICAL ENGINEERING Heat Transfer Laboratory The University of Michigan Ann Arbor, Michigan Progress Report on THE PERFORMANCE ON HIGH-FIN TUBES IN COMBINED RADIATIVE AND NATURAL CONVECTION HEAT TRANSFER Report No. 58
Author: Edwin H. YoungNatural Convection Heat Transfer for a Staggered Array of Heated, Horizontal Cylinders Within a Rectangular Enclosure
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
This thesis presents the results of an experimental investigation of natural convection heat transfer in a staggered array of heated cylinders, oriented horizontally within a rectangular enclosure. The main purpose of this research was to extend the knowledge of heat transfer within enclosed bundles of spent nuclear fuel rods sealed within a shipping or storage container. This research extends Canaan's investigation of an aligned array of heated cylinders that thermally simulated a boiling water reactor (BWR) spent fuel assembly sealed within a shipping or storage cask. The results are presented in terms of piecewise Nusselt-Rayleigh number correlations of the form Nu = C(Ra)[sup n], where C and n are constants. Correlations are presented both for individual rods within the array and for the array as a whole. The correlations are based only on the convective component of the heat transfer. The radiative component was calculated with a finite-element code that used measured surface temperatures, rod array geometry, and measured surface emissivities as inputs. The correlation results are compared to Canaan's aligned array results and to other studies of natural convection in horizontal tube arrays.
Advances in Heat Transfer
Author: Publisher: Academic Press
ISBN: 0080575684
Category : Science
Languages : en
Pages : 381
Book Description
Advances in Heat Transfer
Introduction to Heat Transfer
Author: Bengt SundénPublisher: WIT Press
ISBN: 1845646568
Category : Science
Languages : en
Pages : 365
Book Description
Presenting the basic mechanisms for transfer of heat, this book gives a deeper and more comprehensive view than existing titles on the subject. Derivation and presentation of analytical and empirical methods are provided for calculation of heat transfer rates and temperature fields as well as pressure drop. The book covers thermal conduction, forced and natural laminar and turbulent convective heat transfer, thermal radiation including participating media, condensation, evaporation and heat exchangers. This book is aimed to be used in both undergraduate and graduate courses in heat transfer and thermal engineering. It can successfully be used in R & D work and thermal engineering design in industry and by consultancy firms
Natural Convection
Author: Yogesh JaluriaPublisher: Pergamon
ISBN:
Category : Science
Languages : en
Pages : 344
Book Description
Prediction of Natural Convection Heat Transfer in a Pipeline Bundle
Author: Mohamad Taufik Mohd Sallehud-DinPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The work described in this thesis addresses the issue ofjlow assurance in hydrocarbon recovery systems. Deposition of wax and formation of hydrates are .amongst the critical flow assurance challenges that need to be resolved to avoid serious reduction in hydrocarbon flows emanating from wells and passing through flow lines (which are often sub-sea) to processing facilities. The hydrocarbon streams need to be maintained at temperatures above those at which solids formation occurs. The work described in this thesis is focus sed on active heating of the flow lines by arranging them in a tube bundle in which a heat source is provided by a hot fluid (typically water) flowing in a separate tube. The objective of the work was to develop a generic methodology for the prediction of such bundle systems using Computational Fluid Dynamics (CFD) to generate a heat transfer data base and to interpolate this data base using neural network methods. It was convenient to develop this methodology by focussing on a specific geometry (namely a 3 meter long bundle with 4 internal pipes - product, test, heat flow and heat return respectively). Use of this geometry allowed direct validation of the computational method since an experimental investigation of an identical geometry was carried out in a parallel research project. The CFD methodology was first used to investigate the design of the experiments; it was shown that changes were needed in rig flows and in the sensitivity of the temperature measurements to ensure that the experiments complied closely enough with the basic assumption the each of the surfaces was isothermal. Once changes were made, the experimental and computational results were directly compared and satisfactory agreement was observed. For the bundle in a horizontal orientation, a two-dimensional (2D) CFD solution was used and a data base of 1683 solutions (covering the expected range of surface temperatures) was created. A further set of 1053 three-dimensional (3D) cases were calculated for the situation where the bundle was inclined at up to 90° to the horizontal. Both sets of data were fitted by means of neural networks which allowed prediction of bundle behaviour for a wide range of conditions.