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Single Phase Convective Heat Transfer And Pressure Drop Coefficients In Concentric Annuli
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Book Synopsis Single-phase Convective Heat Transfer and Pressure Drop Coefficients in Concentric Annuli by : Warren Reece Van Zyl
Download or read book Single-phase Convective Heat Transfer and Pressure Drop Coefficients in Concentric Annuli written by Warren Reece Van Zyl and published by . This book was released on 2013 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Single-Phase Convective Heat Transfer and Pressure Drop Coefficients in Concentric Annual by : Warren Reece Van Zyl
Download or read book Single-Phase Convective Heat Transfer and Pressure Drop Coefficients in Concentric Annual written by Warren Reece Van Zyl and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Varying diameter ratios associated with smooth concentric tube-in-tube heat exchangers are known to have an effect on its convective heat transfer capabilities. Much literature exists for predicting the inner tube's heat transfer coefficients, however, limited research has been conducted for the annulus and some of the existing correlations are known to have large errors. Linear and nonlinear regression models exist for determining the heat transfer coefficients, however, these are complex and time consuming methods and require much experimental data in order to obtain accurate solutions. A direct solution to obtain the heat transfer coefficients in the annulus is sought after. In this study a large dataset of experimental measurements on heat exchangers with annular diameter ratios of 0.483, 0.579, 0.593 and 0.712 was gathered. The annular diameter ratio is defined as the ratio of the outer diameter of the inner tube to the inner diameter of the outer tube. Using various methods, the data was processed to determine local and average Nusselt numbers in the turbulent flow regime. These methods included the modified Wilson plot technique, a nonlinear regression scheme, as well as the log mean temperature difference method. The inner tube Reynolds number exponent was assumed to be a constant 0.8 for both the modified Wilson plot and nonlinear regression methods. The logarithmic mean temperature difference method was used for both a mean analysis on the full length of the heat exchanger, and a local analysis on finite control volumes. Friction factors were calculated directly from measured pressure drops across the annuli. The heat exchangers were tested for both a heated and cooled annulus, and arranged in a horizontal counter-flow configuration with water as the working medium. Data was gathered for Reynolds numbers (based on the hydraulic diameter) varying from 10 000 to 28 000 for a heated annulus and 10 000 to 45 000 for a cooled annulus. Local inner wall temperatures which are generally difficult to determine, were measured with thermocouples embedded within the wall. Flow obstructions within the annuli were minimized, with only the support structures maintaining concentricity of the inner and outer tubes impeding flow.
Book Synopsis Convective Heat Transfer Coefficients and Pressure Drop Data from Multi-start Helical Fin Tubes in Longitudinal Flow by : Leonard S. Thomas
Download or read book Convective Heat Transfer Coefficients and Pressure Drop Data from Multi-start Helical Fin Tubes in Longitudinal Flow written by Leonard S. Thomas and published by . This book was released on 1966 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis General Correlations for Pressure Drop and Heat Transfer for Single-phase Turbulent Flow in Internally Ribbed Tubes by : A. E. Bergles
Download or read book General Correlations for Pressure Drop and Heat Transfer for Single-phase Turbulent Flow in Internally Ribbed Tubes written by A. E. Bergles and published by . This book was released on 1985 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fluid Mechanics and Heat Transfer for Gases (air, He, H2 and N2) Flowing Single Phase in Closed Channels by : Rose Kraft
Download or read book Fluid Mechanics and Heat Transfer for Gases (air, He, H2 and N2) Flowing Single Phase in Closed Channels written by Rose Kraft and published by . This book was released on 1962 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1973 with total page 1412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Handbook of Single-Phase Convective Heat Transfer by : Sadik Kakaç
Download or read book Handbook of Single-Phase Convective Heat Transfer written by Sadik Kakaç and published by Wiley-Interscience. This book was released on 1987-11-03 with total page 1268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Very Good,No Highlights or Markup,all pages are intact.
Book Synopsis A Study of Convective Heat Transfer and Pressure Drop Phenomena in Curved Microchannels by : Heng Chih Tang
Download or read book A Study of Convective Heat Transfer and Pressure Drop Phenomena in Curved Microchannels written by Heng Chih Tang and published by . This book was released on 2010 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Convective Heat Transfer in Ducts: The Integral Transform Approach by : C.A.C.. Santos
Download or read book Convective Heat Transfer in Ducts: The Integral Transform Approach written by C.A.C.. Santos and published by Editora E-papers. This book was released on 2001 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis VDI Heat Atlas by : VDI Gesellschaft
Download or read book VDI Heat Atlas written by VDI Gesellschaft and published by Springer Science & Business Media. This book was released on 2010-07-21 with total page 1608 pages. Available in PDF, EPUB and Kindle. Book excerpt: For more than 50 years, the Springer VDI Heat Atlas has been an indispensable working means for engineers dealing with questions of heat transfer. Featuring 50% more content, this new edition covers most fields of heat transfer in industrial and engineering applications. It presents the interrelationships between basic scientific methods, experimental techniques, model-based analysis and their transfer to technical applications.
Book Synopsis General Correlations for Pressure Drop and Heat Transfer for Single-phase Turbulent Flows in Ribbed Tubes by : Tiruvadi Srinivasa Ravigururajan
Download or read book General Correlations for Pressure Drop and Heat Transfer for Single-phase Turbulent Flows in Ribbed Tubes written by Tiruvadi Srinivasa Ravigururajan and published by . This book was released on 1986 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Turbulent Single Phase Forced Convection Heat Transfer and Pressure Drop Characteristics of Circular Ducts Containing Swirl Flow Inducers Or Pall Rings by : D. Burfoot
Download or read book The Turbulent Single Phase Forced Convection Heat Transfer and Pressure Drop Characteristics of Circular Ducts Containing Swirl Flow Inducers Or Pall Rings written by D. Burfoot and published by . This book was released on 1982 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis HEAT TRANSFER, FRICTION AND VELOCITY GRADIENTS IN ANNULI CONTAINING PLAIN AND FIN TUBES. by : JAMES GEORGE KNUDSEN
Download or read book HEAT TRANSFER, FRICTION AND VELOCITY GRADIENTS IN ANNULI CONTAINING PLAIN AND FIN TUBES. written by JAMES GEORGE KNUDSEN and published by . This book was released on 1950 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Laminar Flow Forced Convection in Ducts by : R. K. Shah
Download or read book Laminar Flow Forced Convection in Ducts written by R. K. Shah and published by . This book was released on 1978 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigation of Heat Transfer and Pressure Drop Characteristics of Annuli with Spirally-fluted Inner Tubes by : Srinivas Garimella
Download or read book Experimental Investigation of Heat Transfer and Pressure Drop Characteristics of Annuli with Spirally-fluted Inner Tubes written by Srinivas Garimella and published by . This book was released on 1990 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Turbulent Flow and Heat Transfer in Concentric Annuli by : R. K. Anand
Download or read book Turbulent Flow and Heat Transfer in Concentric Annuli written by R. K. Anand and published by . This book was released on 1966 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Variable Properties Laminar Gas Flow Heat Transfer and Pressure Drop in Annuli by : Rex Wayne Shumway
Download or read book Variable Properties Laminar Gas Flow Heat Transfer and Pressure Drop in Annuli written by Rex Wayne Shumway and published by . This book was released on 1969 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results for laminar gas flow in annuli with variation of fluid properties were obtained for both fully developed and uniform entry velocity profiles by solving the appropriate differential equations in finite difference form. The solutions are valid in flow situations where axial conduction may be neglected, and Mach number is low boundary layer assumptions apply and use of the perfect gas equation of state is defensible. All annuli computations were made with a radius ratio of 0.25, which differs sufficiently from the limiting cases of circular tubes and parallel plates to portray geometry well. Numerical results with full variation of the gas properties were obtained. A heating rate was chosen which would lead to peak wall-to-bulk temperature ratios of about three to five and, therefore, significant property gradients. Results are comparable to those found for circular tubes, except fully-established profiles with significant property variation could exist downstream if the unheated wall was held at a constant temperature. In the thermal entry, heat transfer parameters did not differ substantially from constant property predictions. The friction factors and, hence, pressure drop, did vary significantly. With uniform entering velocities these observations were further tempered by dominance of the usual effects of flow development. (Author).
