Cmc Rope Rescue Manual

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Practical Photovoltaics, the now-classic reference on solar electricity, offers a unique combination of technical discussion and practical advice. Written by physicist, lecturer, and solar home dweller Richard Komp, the book is both a comprehensive guide to the theory, manufacture, present status and future of photovoltaics, and a detailed installation and maintenance manual. Included are well-illustrated, step-by-step instructions for constructing your own solar module, a creative approach to demystifying the technology. John Perlin, author of From Space to Earth: The Story of Solar Electricity and co-author of A Golden Thread: 2500 Years of Solar Architecture and Technology, overviews the history of solar electricity in the Introduction. Presented in a clear, concise, and understandable style, Dr. Komp's contribution to PV literature has been called "the best single reference available," "the easiest and most complete education on photovoltaics," "one of the best basic books on PV," and "the best of the books."
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Product Details

  • ISBN-13: 9780961833718
  • Publisher: CMC Rescue, Incorporated
  • Publication date: 1/1/1992
  • Edition description: 2ND

Table of Contents

Preface and Acknowledgements vii
Preface to the First Edition ix
Introduction: The History of Solar-Generated Electricity xi
Chapter 1 Solar Cells: What They Are and How They Work 1
What Solar Cells Are 1
Physical Characteristics 1
Electrical Characteristics 2
Cell Performance Ratings 4
How Solar Cells Work 5
The Nature of Sunlight 5
Solid-State Physics 7
Doping 11
Junction Photovoltaic Cells 13
Homojunctions 13
Factors Which Influence Cell Efficiency 18
Band Gap Width 18
Recombination 19
Reflectivity and Light Absorption 20
Heterojunctions 20
Schottky Barrier Junctions 21
Advanced Semiconductor Devices 22
Recommended Readings 23
Chapter 2 How Solar Cells Are Made 25
Silicon 25
Metallurgical-Grade Silicon 26
Semiconductor-Grade Silicon 26
Growing Single Crystals 27
Slicing the Crystal into Wafers 29
Polishing and Etching the Wafer 29
Forming the p-n Junction 30
Applying the Fingers and Back Contact 32
The Antireflection Coating 33
Assembly into Modules 34
New Production Techniques for Silicon 36
Solar-Grade Silicon 36
Polycrystalline Silicon 37
Ribbon Growth Systems 39
Amorphous Silicon 40
Recommended Readings 47
Chapter 3 Solar Cells and Modules 49
Series and Parallel Strings 49
Module Construction Techniques 50
Encapsulation 53
Module Failure Mechanisms 53
Joints Between Cells 53
Encapsulant Problems 54
Shunt Diodes 55
Concentrator Systems 56
Two-Axis Tracking 58
One-Axis Tracking 59
Recommended Readings 62
Chapter 4 Using Photovoltaics 63
Current Cost of Solar Electricity 63
Sizing the Array 69
Calculating Load 69
Sizing Methodology 70
Installing Solar Cell Arrays 74
Array Orientation 74
Wiring the Array 76
Combination Systems 76
Inverters 77
Rotary Inverters 78
Solid-State Inverters 78
Synchronous Inverters 79
Recommended Readings 80
Chapter 5 Batteries and Other Storage Systems 81
Storage Batteries 81
The Lead-Acid Battery 82
The Deep-Discharge Lead-Acid Battery 84
Lead-Acid Cell Characteristics 87
A Practical Battery Storage System 94
Maintenance 95
Sulfation 95
Used Batteries 96
Nickel-Cadmium Batteries 97
Nickel-Iron Batteries 99
Nickel-Hydride Batteries 100
Small Storage Systems 101
Mechanical Storage Systems 102
Flywheels 102
Hydrogen 103
Recommended Readings 106
Chapter 6 New Developments in Photovoltaic Technology 107
Other Junction Structures 108
Tin Oxide and Indium Oxide 108
Metal-Semiconductor Junctions 109
Photoelectrochemical Cells 109
Cadmium Sulfide/Cadmium Telluride and Other II-VI Heterojunction Cells 110
III-V Semiconductor Combinations 114
Electroplated Cells 115
Organic Semiconductors 117
Clever Optical Systems 119
Cascade Cells 120
Luminescent Concentrators 122
The Solar Thermophotovoltaic Systems 123
Recommended Readings 124
Chapter 7 The Future of Photovoltaics 125
U.S. Governments and Photovoltaics 126
The Multinationals and Photovoltaics 128
Photovoltaic Power Farms 131
Foreign Solar Cell Activity 136
Japan 136
Western Europe 138
Underdeveloped Countries 139
The Solar Electric Home 141
Solar Cells in Space 143
The Solar Power Satellite 145
A Proposed Alternative 146
Recommended Readings 148
Appendix A Assembling Your Own Modules 149
Testing Solar Cells 150
A Simple Solar Simulator 151
A Simple Sample Holder 151
Current-Voltage Measurements 153
How Cells are Connected 154
Soldering Solar Cells 158
Building a Flat Plate Module 159
Laying Out the Case 159
Cutting the Plastic 160
Gluing the Plastic Case 161
Fastening the Cover 162
Installing the Solar Cells 162
Building a Hybrid Concentrator Module 163
The Backing Support 164
Isolating and Encapsulating the Cells 166
The Reflector Wings 171
Design 171
Making the Reflector Wings 171
A Hybrid Hot Air System 173
Appendix B Manufacturers 175
Appendix C Current Carrying Capacity of Copper Wire 177
Appendix D Conversion Factors 179
Glossary 181
Index 191
About the Author 198
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