HEAT TRANSFER HANDBOOK doc

[...]... KRAUS University of Akron Akron, Ohio [First Page] 1.1 Heat transfer fundamentals 1.1.1 Introduction 1.1.2 Conduction heat transfer One-dimensional conduction One-dimensional conduction with internal heat generation 1.1.3 Spreading resistance 1.1.4 Interface–contact resistance 1.1.5 Lumped-capacity heating and cooling 1.1.6 Convective heat transfer Heat transfer coefficient Dimensionless parameters Natural... Proofs / Heat Transfer Handbook / Bejan [10], (10) ——— 0.10216pt PgVar ——— Normal Page PgEnds: TEX [10], (10) HEAT TRANSFER FUNDAMENTALS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 1.1.7 11 Phase-Change Heat Transfer Boiling heat transfer displays a complex dependence on the temperature difference between the heated surface... solid or a stationary fluid is termed heat conduction Situations in which heat transfer from a wetted surface is assisted by the motion of the fluid give rise to heat convection, and when the fluid undergoes a liquid–solid or liquid–vapor state transformation at or very near the wetted surface, attention is focused on this phase-change heat transfer The exchange of heat between surfaces, or between a surface... termed thermal heat radiation It is our intent in this section to describe briefly these modes of heat transfer, with emphasis on an important parameter known as the thermal resistance to heat transfer Simple examples are given for illustration; detailed descriptions of the same topics are presented in specialized chapters [2], (2) Lines: 95 to 139 ——— 1.1.2 6.28009pt PgVar Conduction Heat Transfer One-Dimensional... One-Dimensional Conduction with Internal Heat Generation Situations in which a solid experiences internal heat generation, such as that produced by the flow of an electric current, give rise to more complex governing equations and require BOOKCOMP, Inc — John Wiley & Sons / Page 2 / 2nd Proofs / Heat Transfer Handbook / Bejan ——— Normal Page PgEnds: TEX HEAT TRANSFER FUNDAMENTALS 1 2 3 4 5 6 7 8 9 10...15 Porous Media 1131 Adrian Bejan 16 Heat Pipes 1181 Jay M Ochterbeck 17 Heat Transfer in Manufacturing and Materials Processing 1231 Richard N Smith, C Haris Doumanidis, and Ranga Pitchumani 18 Microscale Heat Transfer 1309 Andrew N Smith and Pamela M Norris 19 Direct Contact Heat Transfer 1359 Robert F Boehm Author Index 1401 Subject Index 1427 1 2 3 4 5 6... Wiley & Sons / Page 12 / 2nd Proofs / Heat Transfer Handbook / Bejan Lines: 512 to 571 ——— -0.01393pt PgVar ——— Normal Page PgEnds: TEX [12], (12) 2 It is of interest to note that for temperature differences on the order of 10 K, the radiative heat transfer coefficient hr for an ideal (or “black”) surface in an absorbing environment is approximately equal to the heat transfer coefficient in natural convection... with ˆ ˆ ˆ flow velocity V = ex Vx + ey Vy , heat flux q = ex qx + ey qy , specific internal energy u, and rate of internal heat generation q , the first law of thermodynamics requires that rate of energy accumulation within the control volume = net transfer of energy by fluid flow × + rate of internal heat generation net heat transfer by conduction   net work  transfer from the  −  control volume to... parallel-plate channels, the heat transfer coefficient attains an asymptotic value (the fully developed limit), which for symmetrically heated channel surfaces is equal approximately to h= 4k de (W/m2 · K) (1.16) where de is the hydraulic diameter defined in terms of the flow area A and the wetted perimeter of the surfaces p: BOOKCOMP, Inc — John Wiley & Sons / Page 9 / 2nd Proofs / Heat Transfer Handbook / Bejan... Heat Transfer Handbook / Bejan 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 BASIC CONCEPTS 1.1 HEAT TRANSFER FUNDAMENTALS 1.1.1 Introduction Practitioners of the thermal arts and sciences generally deal with four basic thermal transport modes: conduction, convection, phase change, and radiation The process by which heat . Lumped-capacity heating and cooling 1.1.6 Convective heat transfer Heat transfer coefficient Dimensionless parameters Natural convection Forced convection 1.1.7 Phase-change heat transfer 1.1.8. the heat transfer coefficient in natural convection boundary layer flow have taken the form BOOKCOMP, Inc. — John Wiley & Sons / Page 9 / 2nd Proofs / Heat Transfer Handbook / Bejan HEAT TRANSFER. great progress made in heat transfer. Ducts, extended surfaces, heat exchangers, and other features that may be contemplated by the practitioner are now documented in the heat transfer literature. To