Handbook for Transversely Finned Tube Heat Exchanger Design

 
 
Academic Press
  • 1. Auflage
  • |
  • erschienen am 6. Mai 2016
  • |
  • 188 Seiten
 
E-Book | ePUB mit Adobe DRM | Systemvoraussetzungen
E-Book | PDF mit Adobe DRM | Systemvoraussetzungen
978-0-12-804416-2 (ISBN)
 

Handbook for Transversely Finned Tubes Heat Exchangers Design contains detailed experimental data, correlations, and design methods for designing and improving the performance of finned tube heat exchangers. It covers the three main types, circular finned, square finned, and helical finned tube bundles.

Based on extensive experimental studies and tested at leading design and research institutions, this handbook provides an extensive set of materials for calculating and designing convective surfaces from transversely finned tubes, with a particular emphasis on power plant applications.


  • Provides a design manual for calculating heat transfer and aerodynamic resistance of convective heating surfaces fabricated in the form of tube bundles with transverse circular, square and helical fins
  • Presents calculations for finned surfaces operating under conditions of clean and dust-laden flows alike, including finned convective heating surfaces of boilers
  • Includes a fully solved exercise at the end of the book, illustrating the top-down approach specially oriented to power plant heat exchangers


Eugene Pis'mennyi graduated as a mechanical engineer within the area of steamgenerator design from the National Technical University of Ukraine, Kyiv Polytechnic Institute. He obtained his Ph.D. within the area of thermal physics at the same institution. Dr. Pis'mennyi earned a degree of Doctor of Technical Sciences from the Institute of Engineering Thermophysics, National Academy of Sciences of Ukraine. Dr. Pis'mennyi is an internationally recognized scientist within the areas of nuclear engineering and heat transfer. He is an author of more than 400 publications, including eight technical books, 16 patents, and more than 50 technical reports. He has supervised 15 Ph.D. and more than 100 master in science and bachelor's theses. Currently, Dr. Pis'mennyi is a dean of the Heat Power Engineering Faculty and the Chief of Nuclear Power Plants and Engineering Thermophysics Department at the National Technical University of Ukraine, Kyiv Polytechnic Institute.
  • Englisch
  • London
Elsevier Science
  • 3,93 MB
978-0-12-804416-2 (9780128044162)
0128044160 (0128044160)
weitere Ausgaben werden ermittelt
  • Front Cover
  • HANDBOOK FOR TRANSVERSELY FINNED TUBE HEAT EXCHANGER DESIGN
  • HANDBOOK FOR TRANSVERSELY FINNED TUBE HEAT EXCHANGER DESIGN
  • Copyright
  • CONTENTS
  • ABOUT THE AUTHORS
  • FOREWORD
  • PREFACE
  • NOMENCLATURE
  • Greek Symbols
  • Nondimensional Numbers
  • Subscripts
  • Acronyms
  • 1 - General Statements
  • 1.1 GEOMETRIC CHARACTERISTICS
  • 2 - Heat-Transfer Calculations
  • 2.1 BASIC EQUATIONS
  • 2.1.1 Calculation of Quantity of Heat
  • 2.1.2 Calculation of Heating Surface
  • 2.2 OVERALL HEAT-TRANSFER COEFFICIENT
  • 2.2.1 Calculation of Overall Heat-Transfer Coefficient
  • 2.2.2 Calculation for Finned Tubes Exposed to Flow of Combustion Products of Solid Fuels
  • 2.3 REDUCED CONVECTIVE HEAT-TRANSFER COEFFICIENT H1RDC
  • 2.3.1 Calculation When Exposed to Flow of Clean Heat-Transfer Medium
  • 2.3.2 Calculation When Heat-Transfer Medium Is From Combustion Products of Solid Fuels
  • 2.4 CONVECTIVE HEAT-TRANSFER COEFFICIENT (HC)
  • 2.4.1 Definition
  • 2.4.2 Calculation of Design Gas Velocity
  • 2.4.3 Physical Properties of Air and Flue Gases
  • 2.4.4 Calculation of Convective Coefficient in Case of Transverse Flow
  • 2.4.5 Optimum Geometric Characteristics
  • 2.5 HEAT-TRANSFER COEFFICIENT FROM WALL TO INTERNAL MEDIUM (H2)
  • 2.5.1 Definition
  • 2.5.2 Calculation in the Case of Monophase Turbulent Flow
  • 2.6 CONTAMINATION FACTOR AND THERMAL EFFICIENCY
  • 2.6.1 Accounting for Contamination Factors
  • 2.6.2 Calculation of Contamination Factor in Staggered Bundles
  • 2.6.3 Calculation of Contamination Factor in In-line Bundles
  • 2.6.4 In the Case of Combustion Products of Gas and Black Oil
  • 2.6.5 In the Case of Combustion Products of a Fuel Mixture
  • 2.6.6 In the Case of Flow of a Clean Heat-Transfer Medium
  • 2.7 AVERAGE TEMPERATURE DIFFERENCE
  • 2.7.1 Definition
  • 2.7.2 Calculation of Temperature Difference
  • 2.7.3 Calculation in the Case of Complex Connection Schemes
  • 2.7.4 Calculation in the Case of Series-Mixed, Parallel-Mixed, and Crosscurrents
  • 2.7.5 Dimensionless Governing Parameters for Series-Mixed Current
  • 2.7.6 Dimensionless Governing Parameters for Parallel-Mixed Current
  • 2.7.7 Dimensionless Governing Parameters for Crosscurrent Scheme
  • 2.7.8 Calculation in the Case of Steaming Economizer
  • 3 - Calculation of Aerodynamic Resistance
  • 3.1 AERODYNAMIC RESISTANCE CALCULATION
  • 3.1.1 Calculation of the Resistance Coefficient
  • 4 - Calculation of Hydraulic Resistance
  • 4.1 DEFINITION OF QUANTITIES THAT CHARACTERIZE FLOW
  • 4.2 CALCULATION OF TOTAL HYDRAULIC RESISTANCE OF TUBE ELEMENT
  • 4.3 CALCULATION OF HYDRAULIC FRICTION AND LOCAL RESISTANCES OF HEAT-TRANSFER SURFACE
  • 4.4 FRICTION RESISTANCE
  • 4.4.1 Calculation of Friction Resistance of Monophase Liquid Motion
  • 4.4.2 Determination of Absolute Tube Roughness
  • 4.4.3 Calculation of Friction Resistance of Two-Phase Liquid Motion
  • 4.5 LOCAL RESISTANCE IN TUBE ELEMENTS
  • 4.5.1 Calculation of Local Resistance in Monophase Liquid Motion
  • 4.5.2 Determining Average Resistance Coefficients
  • 4.5.3 Determining Resistance Coefficient of Tube Exit
  • 4.5.4 Determining Resistance Coefficient of Tube Turns
  • 4.5.5 Calculating Resistance in Motion of Two-Phase Liquid
  • 4.5.6 Determining Coefficients of Two-Phase Flow Entrance
  • 4.5.7 Resistance Coefficient of Exit of a Two-Phase Medium
  • 4.5.8 Determining Resistance Coefficient of Turns in Two-Phase Flow
  • 4.6 PRESSURE VARIATION IN COLLECTORS [9]
  • 4.6.1 Definition
  • 4.6.2 Accounting for Static Pressure
  • 4.6.3 Calculation of Variation in Static Pressure
  • 4.6.4 Calculation of Static Pressure Loss
  • 4.6.5 Calculation of Pressure Drops
  • 5 - Calculation of Temperature Mode of Finned Tubes
  • 5.1 DEFINITION
  • 5.2 CALCULATION OF TEMPERATURE OF FIN BASE
  • 5.2.1 Calculation of Temperature of Internal Medium
  • 5.2.2 Calculation of Increment of Medium Enthalpy
  • 5.2.2.1 Calculation of Heat Transfer Rate by Radiation
  • 5.2.2.2 Calculation of Heat Absorption by Convection
  • 5.2.3 Calculation of Medium Temperature Excess in the Maldistributed Tube
  • 5.2.4 Calculation of Specific Heat Load
  • 5.2.5 Determination of Convective Heat Transfer Coefficient
  • 5.3 TEMPERATURE AT FIN TIP
  • 5.4 MEAN INTEGRAL TEMPERATURE OF FIN
  • 5.5 TEMPERATURE OF THE INSIDE SURFACE OF TUBE
  • 5.6 THICKNESS AVERAGE TEMPERATURE OF THE TUBE WALL IN THE REGION OF MAXIMUM HEAT FLUX
  • 6 - Strength Design
  • 6.1 BASIC CONCEPTS
  • 6.2 DESIGN PRESSURE
  • 6.2.1 Definition of Design Pressure
  • 6.2.2 Design Pressure Default Value
  • 6.3 DESIGN TEMPERATURE
  • 6.3.1 Definition of Design Temperature
  • 6.3.2 Calculation of Design Temperature
  • 6.4 ALLOWABLE STRESS
  • 6.4.1 Definition of Allowable Stress
  • 6.4.2 Determination of Allowable Stress Value
  • 6.5 CALCULATION OF ALLOWABLE WALL THICKNESS OF FINNING-CARRYING TUBE
  • 6.5.1 Basic Concepts
  • 6.5.2 Calculation of Design Wall Thickness
  • 6.5.3 Calculation of Allowable Wall Thickness
  • 6.5.4 Calculation of the Additive to the Design Wall Thickness
  • 6.5.5 Calculation of the Manufacturing Additive
  • 6.5.6 Calculation of the Operational Additive
  • 6.5.7 Calculated Finned Heating Surface
  • 7 - Examples of Calculations
  • 7.1 CALCULATION ASSIGNMENT
  • 7.2 HEAT BALANCE
  • 7.3 STRUCTURAL FEATURES OF WAHE
  • 7.3.1 Specific Geometric Characteristics of Finned Tubes
  • 7.3.2 Dimensions of Gas Conduit and Spacing Characteristics of WAHE
  • 7.3.3 Free Area for Passage of Air and Calculated Air Velocity
  • 7.3.4 Free Area for Passage of Water and Average Water Velocity
  • 7.4 AREA OF HEAT-TRANSFER SURFACE
  • 7.4.1 Calculation of Area of Heat-Transfer Surface of WAHE
  • 7.4.2 Overall Heat Transfer Coefficient
  • 7.4.3 Reduced Heat Transfer Coefficient h1rdc
  • 7.4.4 Coefficient of Heat Transfer From Wall to Internal Medium h2
  • 7.4.5 Average Temperature Difference ?t
  • 7.4.6 Results of Thermal Calculations
  • 7.5 CALCULATION OF AERODYNAMIC RESISTANCE
  • 7.5.1 Determination of Length of Developed Surface and Diameter of Bundle
  • 7.5.2 Determination of Resistance Coefficient
  • 7.5.3 Calculation of Aerodynamic Resistance of WAHE
  • 7.6 CALCULATION OF HYDRAULIC RESISTANCE OF WAHE
  • 7.6.1 Geometric Characteristics Needed for Calculations (Fig. 7.1)
  • 7.6.2 Calculation of Hydraulic Resistance of Coil ?Pcoil
  • 7.6.3 Total Pressure Loss in Supply and Intake Collectors of ?P col
  • 7.6.4 Total Hydraulic Resistance of WAHE ?Pel
  • 7.6.5 Conclusions Based on Calculations
  • A - Units Conversion
  • B - Recommended Thermophysical Properties Software for Gases and Liquids
  • C - Tables of Properties of Substances
  • REFERENCES
  • INDEX
  • A
  • C
  • D
  • F
  • G
  • H
  • L
  • M
  • N
  • O
  • R
  • S
  • T
  • U
  • W
  • Back Cover

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