PHYSICS OF coLwER64iwkNAs AND MAGNETORYDRODYNAMIC POWER GENERATION
Samiran Guha
Thesis submitted to Indian Institute of Technology, Delhi for partial fulfilment of the Degree of
Doctor of Philosophy 1968
ACKNOWLEDGMENTS
The author wishes to express his deep sense of
gratitude to Professor M.S. Sodha for his valuable guidance, kind encouragement and inspiration.
The author is greatly indebted to Dr. P.K. Kaw for his helpful suggestions and discussions at various stages of this work. The author also wishes to express his sincere thanks to Professor S.C. Jain for the kind encouragement and help that was extended to him. Thanks are also due to Mr. M.P. Joseph for an efficient typing of this thesis.
The author is thankful to the Council of Scientific and Industrial Research (India) for financial assistance.
TABLE OF CONTENTS
ACKNOWLEDGMENTS PREFACE
Chapter I : PHOTOELECTRIC ENHANCEMENT OF ELECTRICAL CONDUCTIVITY IN
• •
Page
1
DUST-LADEN GASES • • 12
1. Introduction • • 12
2. Photoelectric Enhancement • • 16 2.1 Electron Density 16 2.2 Electron Collision Frequency 21 2.3 Numerical Results and
Discussion 22
Bibliography • • 28
Chapter II : PROPAGATION OF ELECTROMAGNETIC
WAVES IN COLLOIDAL PLASMAS .. 30 1. Linear Wave Propagation .. 30
1.1 Introduction .. 30
1.2 Electron Collision Frequency
and Density .. 31
1.3 Current Density .. 34 1.4 Wave Equation .. 35 1.5 Reflection of the Wave .. 37 1.6 Numerical Results and
Discussion .. 38
2. Nonlinear Wave Propagation 41
2.1 Introduction 41
2.2 Electron Temperature and Current Density
2.3 Wave Equation 2.4 Discussion
• •
• •
• •
42 47 49
Appendix .. 50
Bibliography • • 52
Chapter III : ELECTRONIC CONDUCTIVITY OF
ADDITIVELY COLORED ALKALI HALIDE
CRYSTALS • • 53
1. Introduction .. 53
2. Electron Density • • 57 3. Mobility of Electrons .. 59 4. Numerical Results for KC1 and
Discussion • • 60
4.1 Electronic Conductivity • • 60 4.2 Electron Affinity • • 63
Bibliography • . 65
Chapter IV PHOTOCONDUCTIVITY OF ADDITIVELY
COLORED ALKALI HALIDE CRYSTALS • • 67
1. Introduction .. 67
2. Electron Density •• 69 3. Mobility of Electrons •• 73 4. Numerical Results and
Discussion .. 74
Bibliography .. 79
Chapter V : SOME INVESTIGATIONS IN MAGNETO-
HYDRODYNAMCC POWER GENERATION 79 1. Introduction • • 79
2. Optimum Seeding in a Non- equilibrium Helium-Cesium
System 80
2.1 Introduction" .. 80 2.2 Electron Collision Data 81 2.3 Condition for Optimum Seeding .. 82 2.4 Numerical Results and
Discussion 87
3. Effective Conductivity in a Segmented-Electrode Magneto- hydrodynamic Power Generator with Elevated Electron
Temperature 87
3.1 Introduction 87
3.2 Effective Conductivity 88 3.3 Numerical. Results 93
Bibliography 94
