Cryogenic Helium Refrigeration for Middle and Large Powers

Cryogenic Helium Refrigeration for Middle and Large Powers
Author: Guy Gistau Baguer
Publisher: Springer Nature
Total Pages: 725
Release: 2020-10-27
Genre: Science
ISBN: 3030516776

This book offers a practical introduction to helium refrigeration engineering, taking a logical and structured approach to the design, building, commissioning, operation and maintenance of refrigeration systems. It begins with a short refresher of cryogenic principles, and a review of the theory of heat exchangers, allowing the reader to understand the importance of the heat exchanger role in the various thermodynamic cycle structures. The cycles are considered from the simplest (Joule Thomson) to the most complicated ones for the very large refrigeration plants and, finally, those operating at temperatures lower than 4.5 K. The focus then turns to the operation, ability and limitations of the main components, including room temperature cycle screw compressors, heat exchangers, cryogenic expansion turbines, cryogenic centrifugal compressors and circulators. The book also describes the basic principles of process control and studies the operating situations of helium plants, with emphasis on high level efficiency. A major issue is helium purity, and the book explains why helium is polluted, how to purify it and then how to check its purity, to ensure that all components are filled with pure helium prior to starting. Although the intention of the book is not to design thermodynamic cycles, it is of interest to a designer or operator of a cryogenic system to perform some simplified calculations to get an idea of how components or systems are behaving. Throughout the book, such calculations are generally performed using Microsoft® Excel and the Gaspak® or Hepak® software.

Proceedings of the 28th International Cryogenic Engineering Conference and International Cryogenic Materials Conference 2022

Proceedings of the 28th International Cryogenic Engineering Conference and International Cryogenic Materials Conference 2022
Author: Limin Qiu
Publisher: Springer Nature
Total Pages: 1176
Release: 2023-11-01
Genre: Science
ISBN: 9819961289

This book gathers selected papers from the 28th International Cryogenic Engineering Conference and International Cryogenic Materials Conference 2022 (ICEC28-ICMC 2022), held virtually in Hangzhou, China on 25-29 April 2022, due to COVID-19 pandemic. Highlighting the latest findings on cryogenic engineering and cryogenic materials, it covers topics including: large-scale cryogenic components, processes and systems for refrigeration, separation, and liquefaction of cryogenic fluids, small-scale cryocoolers, cryogenic space applications, thermal insulation, thermal-physical properties of cryogenic fluids and materials, superconducting materials, devices, systems and applications, etc. The book offers valuable information and insights for academic researchers, engineers in the industry, and operators in the cryogenic field.

Applications of Cryogenic Technology

Applications of Cryogenic Technology
Author: J. Patrick Kelley
Publisher: Springer Science & Business Media
Total Pages: 348
Release: 1991-06-30
Genre: Science
ISBN: 9780306438929

Applications of Cryogenic Technology, Vol. 10, is the proceedings from the portion of the conference CRYO-90 sponsored by the Cryogenic Society of America (CSA). CRYO-90, held on the campus of the State University of New York, Binghamton, New York, was an unusual interdisciplinary event, drawing from the life sciences as well as the physical science and engineering areas of the low temperature community. Co-sponsoring CRYO-90 with CSA were the Society for Cryobiology and the Symposium on Invertebrate and Plant Cold Hardiness. These latter two organizations brought an exciting developing field to the conference, a field whose exploration will lead to the betterment of all mankind through improved cryosurgical and organ preservation techniques in addition to improved agricultural and herd yields under extreme conditions. Specific goals of the cryobiological community are cryopreservation, the arrest and recovery of living processes of cells, tissues and organs; and cryosurgery - the local cryodestruction of diseased cells while preserving the healthy surrounding tissue. These goals present great technological challenges. The technological requirements of the cryobiologist include the ability to cool tissues 6 at rates of 10 degrees per second (vitrification), to thaw frozen tissue without damaging the delicate cells, to freeze dry tissue using molecular distillation (vacuum) drying, to supercool cell structures below O°C without freezing, and to successfully store the preserved tissues and organs for any required length of time.

Proceedings of the Ninth International Cryogenic Engineering Conference, Kobe, Japan, 11-14 May 1982

Proceedings of the Ninth International Cryogenic Engineering Conference, Kobe, Japan, 11-14 May 1982
Author: K. Yasukochi
Publisher: Butterworth-Heinemann
Total Pages: 873
Release: 2013-10-08
Genre: Technology & Engineering
ISBN: 1483164098

Proceedings of the Ninth International Cryogenic Engineering Conference, Kobe, Japan, 11-14 May 1982 contains the papers presented during the entirety of the conference. The overall focus is on the presentation of technical developments and new applications in the field of cryogenics. The topics covered during the conference include high speed magnetic levitation train, magnetic fusion energy and its cryogenic applications, and cooling effects in a vortex cooler. Superconductivity and fusion, digital applications of the Josephson effect, thermally activated stirling cryocooler, and large cryogenic systems of the energy doubler are discussed as well. Physicists, chemists, engineers, and researchers in the field of cryogenics will find the compendium very insightful.

Physics and Engineering of High-performance Electron Storage Rings and Application of Superconducting Technology

Physics and Engineering of High-performance Electron Storage Rings and Application of Superconducting Technology
Author: Shin?ichi Kurokawa
Publisher: World Scientific
Total Pages: 567
Release: 2002
Genre: Science
ISBN: 9810247168

The first Asian Accelerator School (AAS) was organised to show the rapid development of accelerator sciences based on electron storage rings in Asia. At present seven electron-positron colliders are operational in the world, and two of them are located in Asia: KEKB (the KEK B-Factory) at KEK in Japan, and BEPC at IHEP in China. It is also notable that one-third of the operating synchrotron light sources are Asian machines.To further improve the performance of electron storage rings, the use of superconducting magnets and cavities is of vital importance; therefore the curriculum of AAS was arranged not only to teach the basic physics of storage rings but also to give students a basic knowledge of superconducting technology.

Applications of High Temperature Superconductors to Electric Power Equipment

Applications of High Temperature Superconductors to Electric Power Equipment
Author: Swarn S. Kalsi
Publisher: John Wiley & Sons
Total Pages: 228
Release: 2011-04-18
Genre: Technology & Engineering
ISBN: 1118110099

The only one-stop reference to design, analysis, and manufacturing concepts for power devices utilizing HTS. High temperature superconductors (HTS) have been used for building many devices for electric grids worldwide and for large ship propulsion motors for the U.S. Navy. And yet, there has been no single source discussing theory and design issues relating to power applications of HTS—until now. This book provides design and analysis for various devices and includes examples of devices built over the last decade. Starting with a complete overview of HTS, the subsequent chapters are dedicated to specific devices: cooling and thermal insulation systems; rotating AC and DC machines; transformers; fault current limiters; power cables; and Maglev transport. As applicable, each chapter provides a history of the device, principles, configuration, design and design challenges, prototypes, and manufacturing issues, with each ending with a summary of the material covered. The design analysis and design examples provide critical insight for readers to successfully design their own devices. Original equipment manufacturer (OEM) designers, industry and utilities users, universities and defense services research groups, and senior/postgraduate engineering students and instructors will rely on this resource. "HTS technology reduces electric losses and increases the efficiency of power equipment. This book by Swarn Kalsi, a leading expert on the HTS subject, provides a survey of the HTS technology and the design rules, performance analyses, and manufacturing concepts for power application-related devices. It compares conventional and HTS technology approaches for device design and provides significant examples of devices utilizing the HTS technology today. The book is useful for a broad spectrum of professionals worldwide: students, teaching staff, and OEM designers as well as users in industry and electric utilities." —Professor Dr. Rolf Hellinger, Research and Technologies Corporate Technology, Siemens AG

Cryogenic Engineering, Revised and Expanded

Cryogenic Engineering, Revised and Expanded
Author: Thomas Flynn
Publisher: CRC Press
Total Pages: 912
Release: 2004-11-30
Genre: Science
ISBN: 0203026993

Written by an engineering consultant with over 48 years of experience in the field, this Second Edition provides a reader-friendly and thorough discussion of the fundamental principles and science of cryogenic engineering including the properties of fluids and solids, refrigeration and liquefaction, insulation, instrumentation, natural gas processi