Related Resources: Heat Transfer

Heat Exchanger Performance Ranking

Heat Transfer Engineering
Heat Exchanger Design and Engineering

Heat Exchanger Performance Ranking
Gerald Ernest Sheldon
Naval Post Graduate School
118 Pages

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Preface

Traditionally data for plate-finned surfaces have been presented in terms of heat transfer coefficients and friction factors referred to the exposed area, as a function of Reynolds number based on the minimum free flow area. This method of data presentation does not permit comparison of surfaces in any simple manner.

Soland proposed a method of surface comparison where heat transfer coefficient and friction factor is referred to the base area and Reynolds number is based on open flow area, as though the fins were not present.

Soland' s method is applied to practical heat exchanger design problems and the usefullness of his method is evaluated,, Numerous surfaces not examined by Soland are evaluated. Based on the four comparison criteria considered, these newly evaluated surfaces are compared with Soland' s results.

TOC

TITLE PAGE 1
ABSTEACT 2
ACKNOWLEDGEMENTS 3
TABLE OF CONTENTS 4
NOMENCLATURE 5
LIST OF FIGURES 9
I. INTRODUCTION 10
A. Purpose 10
B. Background 10
C. Surface Testing and Data Presentation 12
D. The Problem Facing the Designer 13
II. PROPOSED COMPARISON TECHNIQUE 18
A. Derivation of Basis of Comparison 18
B. Method of Surface Comparison 24
III. HEAT EXCHANGER DESIGN PROBLEM 29
A. Description 29
IV. ADDITIONAL SURFACE COMPARISONS 35
V. CONCLUSIONS 37
REFERENCES 38
APPENDIX I.
SIZING CROSSFLOW PLATE-FINNED HEAT EXCHANGERS 39
FOR A GIVEN JOB APPENDIX II.
SAMPLE CALCULATIONS 47
APPENDIX III.
SURFACE DATA FOR FIGURE 8. 51

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