Low Temperatures and Electric Power

Low Temperatures and Electric Power

Transmission Motors, Transformers and Other Equipment Cryogenics and Properties of Materials

1st Edition - January 1, 1970

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  • Author: Unknown Author
  • eBook ISBN: 9781483153049

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Low Temperatures and Electric Power covers the proceeding of the symposium entitled ""Cryogenics in Fuel and Power Technology"" which was held in March 24-28, 1969 in London, United Kingdom. Said symposium deals with the improvement of systems for electric power and liquid natural gas delivery. The book takes on the problems of the electric power industry, large-scale refrigeration, and cryogenics, and gives different proposals for superconduction, cooling of systems, transfer of liquid natural gas, heat exchange, and energy storage. The text is recommended for electrical engineers and scientists, especially those who work for the government and aim to improve national power systems and delivery of liquid natural gas.

Table of Contents

  • Foreword

    List of participants


    Section 1 Preliminary

    Problems of the Electrical Power Industry

    Problems of Large-Scale Refrigeration

    Cryogenic Power Transmission

    Section 2 Electric Power and Liquefied Natural Gas

    A Total Energy Transfer System for LNG and Electric Power

    Section 3 D.C. Transmission

    Basic Problems of d.c. Power Transmission by Cryogenic Cables

    Electrical Energy Transmission via a Direct Current Superconductor Cable

    A Model for a Direct Current Hyper Conducting Cryo-Cable

    A.C. Losses in Superconductors

    Section 4 A.C. Transmission

    Composite Conductors for a Superconducting A.C. Power Transmission Cable

    A "Superconducting Link" for Laboratory Tests on Conductors for Superconducting Cables

    A Comparison of Superconducting and Cryo-Resistive Power Cables

    Electrical Considerations for an A.C. Superconducting Cable

    Section 5 Cooling of Transmission Lines

    Refrigeration and Circulation of Helium in Superconducting Power Cables

    A General Study of Problems Associated with the Cooling of a Direct Current Superconducting Cable

    Cooling of Superconducting Cables

    Special Cryogenic Problems on the Performance of Superconducting Cables

    Section 6 Miscellaneous Topics Relating to Transmission

    Protection of Superconducting Devices against Overload. Dimensional Characteristics

    The Cool-Down of Long Ducts

    Refrigeration of Cryoelectrotechnical Apparatus. Problem of Electrical Connections

    Motors, Generators and Flux Pumps

    Section 7 Superconducting Materials

    Elaboration and Application of NbTi and Nb3Sn Superconductors

    Stable Superconductors and Their Uses

    Effect of Temperature on the Critical Current Density of Nb-44 wt% Ti Alloy

    Section 8 Motors, Generators, Transformers

    A Model Superconducting Motor

    Aspects of a Superconducting Winding for a 3250 hp Motor

    The Cryostat and Refrigerator for a 3250 hp Superconducting Motor

    Semi-Superconductive Rotary Machine

    Development Work for the Construction of a Prototype Cryo-Transformer

    Section 9 Rectifiers

    Superconducting Rectifiers

    Section 10 Magnetic Suspension

    Magnetic Suspension and Guidance of High Speed Vehicles

    Section 11 Cryogenics

    An Industrial Gas Refrigerating Machine for the Temperature Range from Room Temperature Down to 20°K and Lower

    Closed Cycle Refrigeration of a Superconducting Magnet


    Section 12 Dielectric Strength of Helium

    Parameters Involved in the Electrical Breakdown of Liquid Helium

    High Voltage Dielectric Behavior of Liquid and Hypercritical Helium

    Some Problems of Heat Exchange on Surfaces of Cylindrical Bodies

    Cooldown of Systems Elements in the Forced Motion Conditions of the Cooling Agent

    Measurements of Nucleate Boiling Heat Transfer to Liquid Helium from a Simulated Superconductor Array with Cooling Channels

    Section 13 Energy Storage

    Some Fundamental Problems with Superconducting Energy Storages

    Study and Construction of an Energy Storing Superconducting Coil

    Energy Storage in a Superconducting Winding

    Superconductive Energy Storage with a Flux Pump

    Future Trends in Cryoelectrotechnics

Product details

  • No. of pages: 456
  • Language: English
  • Copyright: © Pergamon 1970
  • Published: January 1, 1970
  • Imprint: Pergamon
  • eBook ISBN: 9781483153049

About the Author

Unknown Author

Dr. Sam Stuart is a physiotherapist and a research Fellow within the Balance Disorders Laboratory, OHSU. His work focuses on vision, cognition and gait in neurological disorders, examining how technology-based interventions influence these factors. He has published extensively in world leading clinical and engineering journals focusing on a broad range of activities such as real-world data analytics, algorithm development for wearable technology and provided expert opinion on technology for concussion assessment for robust player management. He is currently a guest editor for special issues (sports medicine and transcranial direct current stimulation for motor rehabilitation) within Physiological Measurement and Journal of NeuroEngineering and Rehabilitation, respectively.

Affiliations and Expertise

Senior Research Fellow, Department of Sport, Exercise and Rehabilitation, Northumbria University, UK Honorary Physiotherapist, Northumbria Healthcare NHS Foundation Trust, North Shields, UK

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