Download or read book Heat Conduction with Freezing Or Thawing written by Virgil J. Lunardini and published by . This book was released on 1988 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heat Transfer with Freezing and Thawing written by V.J. Lunardini and published by Elsevier. This book was released on 1991-01-15 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides a comprehensive overview on the vast amount of literature on solidification heat transfer. Chapter one develops important basic equations and discusses the validity of considering only conductive heat transfer, while ignoring convection, in the large class of materials which make up the porous media. Chapters 2 to 4 deal with problems that can be expressed in plane (Cartesian) coordinates. These problems are further divided into boundary conditions of temperature, prescribed heat flux, and surface convection. Chapter 5 examines some plane geometries involving three-dimensional freezing or thawing. Problems in the cylindrical and spherical coordinate systems are covered in chapters 6 and 7. Chapter 8 is an introduction to solidification in porous media.Many of the applications have been directed to water/ice soil-systems, but it should be clear that the basic techniques and solutions can be applied to such diverse areas as metallurgy, biological systems, latent heat storage, and the preservation of food.
Download or read book Heat Conduction with Freezing Or Thawing written by Virgil J. Lunardini and published by . This book was released on 1988 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heat Conduction with Freezing Or Thawing written by Virgil J. Lunardini and published by . This book was released on 1986 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Freezing of water or melting of ice are phenomena that underlie many important scientific and engineering studies of cold regions. Mathematical methods of treating these phase-change heat transfer problems are critical to understanding and dealing with the problems that freeze-thaw causes. While convection may be an important heat transfer mode, it can often be neglected without significant error. This report deals only with problems for which conduction is the basic heat transfer mode or for which the solutions can be obtained in terms of conduction-like problems. Where possible, exact solutions are presented, but since these are quite limited for phase-change problems, approximate solutions are examined in some detail. The approximate methods are 1) the perturbation method, which leads to quasi-stationary techniques, 2) the heat balance integral method, and 3) Biot's variational principle. THe theory associated with these methods is discussed in the appendixes. THe available exact solutions are derived and explained. Graphical solutions are used to generate design curves-such as those for phase-change depth, temperature, and heat flow vs time. The results are presented so as to be easily accessible to practicing engineers without recourse to elaborate calculations. This is especially true for application to soil systems. Keywords: Conduction, Freezing, Heat transfer, Melting, Phase change, Thawing. (mjm).
Download or read book Food Freezing and Thawing Calculations written by Q. Tuan Pham and published by Springer. This book was released on 2014-04-17 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: Freezing time and freezing heat load are the two most important factors determining the economics of food freezers. This Brief will review and describe the principal methods available for their calculation. The methods can be classified into analytical methods, which rely on making physical simplifications to be able to derive exact solutions; empirical methods, which use regression techniques to derive simplified equations from experimental data or numerical calculations and numerical methods, which use computational techniques such as finite elements analysis to solve the complete set of equations describing the physical process. The Brief will evaluate the methods against experimental data and develop guidelines on the choice of method. Whatever technique is used, the accuracy of the results depends crucially on the input parameters such as the heat transfer coefficient and the product's thermal properties. In addition, the estimation methods and data for these parameters will be reviewed and their impacts on the calculations will be evaluated. Freezing is often accompanied by mass transfer (moisture loss, solute absorption), super cooling and nucleation and may take place under high pressure conditions; therefore methods to take these phenomena into account will also be reviewed.
Download or read book Freezing And Melting Heat Transfer In Engineering written by K. C. Cheng and published by CRC Press. This book was released on 1991-08-01 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume of papers has been produced in memory of Professor R.R. Gilpin, who was a pioneer in the field of freezing phenomena in ice-water systems. The subject has applications in ice formation in industrial plants, technologies for manufacturing crystals in space for semiconductors and computer chips and atmospheric physics and geophysics.
Download or read book An Introduction to the Mathematical Theory of Heat Conduction written by Leonard Rose Ingersoll and published by . This book was released on 1913 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Simulation of Freezing and Thawing in Foods Using the Finite Element Method written by Hussein Osman Abdalla and published by . This book was released on 1984 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling Heat and Mass Transfer During Air Impingement Thawing of Frozen Foods written by Brent Andrew Anderson and published by . This book was released on 2004 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heat Conduction with Freezing Or Thawing written by Virgil J. Lunardini and published by . This book was released on 1988 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heat Transfer in Cold Climates written by Virgil J. Lunardini and published by . This book was released on 1981 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt: Good,No Highlights,No Markup,all pages are intact, Slight Shelfwear,may have the corners slightly dented, may have slight color changes/slightly damaged spine.
Download or read book Parametric Analysis of One Dimensional Heat Conduction Foods Undergoing Freezing and Thawing written by Jorge Succar and published by . This book was released on 1984 with total page 942 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Introduction to Two Dimensional Radial Heat Flow in Freeze Thaw Soil Conditions written by J. Paul Guyer, P.E., R.A. and published by Guyer Partners. This book was released on 2019-10-07 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introductory technical guidance for civil and geotechnical engineers interested in design for facilities and infrastructure in freeze-thaw soil conditions. Here is what is discussed: 1. GENERAL 2. DEFINITIONS AND THERMAL PROPERTIES 3. TWO-DIMENSIONAL RADIAL HEAT FLOW 4. ABBREVIATIONS.
Download or read book Conduction Heat Transfer with Phase Change and Its Application to Freezing Or Thawing of Foods written by Abraham Itshak Bakal and published by . This book was released on 1970 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Freezing of Soil with an Unfrozen Water Content and Variable Thermal Properties written by Virgil J. Lunardini and published by . This book was released on 1988 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: While many materials undergo phase change at a fixed temperature, soil systems exhibit a definite zone of phase change. The variation of unfrozen water with temperature causes a soil system to freeze of thaw over a finite temperature range. Exact and approximate solutions are given for conduction phase change of plane layers of soil with unfrozen water contents that vary linearly and quadratically with temperature. The temperature and phase change depths were found to vary significantly from those predicted for the constant-temperature or Neumann problem. The thermal conductivity and specific heat of the soil within the mushy zone varied as a function of unfrozen water content. It was found that the effect of specific heat is negligible, while the effect of variable thermal conductivity can be accounted for by a proper choice of thermal properties used in the constant-thermal-property solution. Keywords: Frozen soils; Phase change; Soils.
Download or read book An Introduction to Freeze Thaw in Soils One Dimensional Linear Heat Flow written by J. Paul Guyer, P.E., R.A. and published by Guyer Partners. This book was released on 2018-02-09 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introductory technical guidance for civil and geotechnical engineers interested in freeze/thaw conditions in soil. Here is what is discussed: 1. GENERAL 2. DEFINITIONS AND THERMAL PROPERTIES 3. ONE-DIMENSIONAL LINEAR AND PERIODIC HEAT FLOW 4. ABBREVIATIONS 5. BIBLIOGRAPHY.
Download or read book Heat Conduction with Melting Or Freezing in a Corner written by Kenneth A. Rathjen and published by . This book was released on 1968 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
