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Please find below our specialist reports presented at the cryogenic engineering conferences.
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 | CONSIDERATIONS FOR SMALL TO MEDIUM LIQUEFACTION PLANTS [PRESENTED 2011] (772.67 kB) The basic requirements for a user to size and design small to medium helium liquefaction systems are quite multilayer. The feed gas composition, for example... | |
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| THE DARWIN HELIUM FACILITY [PRESENTED 2010] (518.15 kB) Operation of a helium purification, liquefaction and distribution plant. | |
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| JEFFERSON LABORATORY [PRESENTED 2010] (221.79 kB) 4.5-K Refrigerator Cold Box System for the 12 GeV Upgrade at JLab | |
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| NASA - JAMES WEBB TELESCOPE [PRESENTED 2009] (271.83 kB) Large scale refrigeration plant for ground testing the James Webb Telescope at NASA Johnson Space Center. | |
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| SUMMERY AND RESULTS OF THE CRYOPLANT OPERATION FOR HERA [PRESENTED 2008] (134.8 kB) For about 15 years, leptons and protons collided inside the HERA particle accelerator with the intension of investigating the protons’ inner structure... | |
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| RECENT PROGRESS IN DYNAMIC PROCESS [PRESENTED 2007] (43.38 kB) At the CEC 2005 a paper with the title “Helium refrigerator design for pulsed heat load in Tokamaks“ was presented. That paper highlighted the control requirements for cryogenic refrigerators to cope with the expected load variations of future nuclear fusion reactors. First dynamic computer simulations have been presented... | |
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| EXPERIENCE WITH DRY RUNNING VACUUM PUMPS IN HELIUM SERVICE [PRESENTED 2007] (245.15 kB) A process vacuum system for helium using dry running vacuum pumps only was shop tested and installed in a refrigeration plant to serve cavities operating at 2K for a cryogenic storage ring... | |
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| LARGE SCALE HELIUM LIQUEFACTION AND CONSIDERATIONS FOR SITE SERVICES FOR A PLANT LOCATED IN ALGERIA [PRESENTED 2007] (203.88 kB) The large scale liquefaction of Helium extracted from natural gas is depicted. Based on a block diagram the process chain, starting with the pipeline downstream of the natural gas plant to the final storage of liquid Helium is explained... | |
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| IMPROVEMENTS OF HELIUM LIQUEFACTION / REFRIGERATION PLANTS AND APPLICATIONS [PRESENTED 2007] (181.13 kB) High reliability, availability, low operational costs and short delivery times have become key requirements for small scale helium liquefiers. In addition, the demands concerning product design and user friendliness have risen. By using standardised components... | |
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| STATE OF THE ART HELIUM LIQUEFACTION AND REFRIGERATION PLANTS [PRESENTED 2006] (231.82 kB) A new design for small scale helium liquefiers with a liquefaction capacity between 20 l/h and 290 l/h LHe is presented. Compared to the old liquefier generation efficiencies and liquefaction rates... | |
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| INTRODUCTION TO SMALL SIZE HYDROGEN LIQUEFIER [PRESENTED 2006] (123.05 kB) Small size hydrogen liquefiers are easy to operate and are mainly built to serve as a test facility to produce liquid hydrogen on demand. Liquefied hydrogen is used in the aerospace- and electronic industry... | |
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| HELIUM REFRIGERATOR DESIGN FOR PULSED HEAT LOAD IN TOKAMAKS [PRESENTED 2005] (141.47 kB) Nuclear fusion reactors of the Tokamak type will be operated in a pulsed mode requiring the helium refrigerator to remove periodically large heat loads in time steps of approximately one hour. What are the necessary steps for a refrigerator to cope with such load variations?... | |
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| EFFICIENCY OF HYDROGEN LIQUEFACTION PLANTS [PRESENTED 2003] (30.73 kB) The medium size hydrogen liquefier described consists of a compressor system using piston compressors with three pressure levels and a liquefier cold box containing the... | |