By H. S. Yang, H. Nagai, N. Takano, M. Murakami (auth.), Quan-Sheng Shu (eds.)
In contemporary years, the know-how of cryogenic comminution has been greatly utilized within the box of chemical engineering, nutrients making, drugs construction, and especially in recycling of waste material. a result of expanding pollutants of waste tires and the dearth of uncooked rubber source, the recycling technique for waste rubber items has turn into very important and commercially practicable. This expertise has proven numerous benefits akin to inflicting no environmental pollutants, requiring low power intake and generating prime quality items. consequently, the traditional crusher which used to be used to reclaim fabrics, akin to waste tires, nylon, plastic and plenty of polymer fabrics at atmospheric 12 temperature is being changed via a cryogenic crusher. • within the cryogenic crusher, the valuables of the milled fabric is mostly very delicate to temperature switch. while a crusher is in operation, it is going to generate loads of warmth that reasons the fabric temperature elevated. as soon as the temperature raises over the vitrification temperature, the fabric estate will switch and lose the brittle habit inflicting the power intake to upward push sharply. accordingly, the comminution approach can't be persisted. for this reason, it really is believed that the cryogenic crusher is the main serious part within the cryogenic comminution process. The study at the temperature elevate and effort intake within the cryogenic crusher is not just to lessen the power intake of the crasher, but in addition to lessen the power intake of the cryogenic system.
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Extra resources for Advances in Cryogenic Engineering
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Furthermore, since the behavior of He II and vapor flow in one string is significantly dependent upon the pressure drop in gas return tube and interconnection tubes, calculation of such structure dependent pressure drop with enough precision becomes a key issue, which could. be solved by experimental measurement and improvement of the friction correlation of He vapor. ACKNOWLEDGEMENTS Thanks to Dr. H. Lierl, Dr. B. Petersen, Dr. D. Sellmann and Mr. A. Zolotov of DESY for their support and advice.
4. 5. R. F. H. Okiishi, Fundamentals of Fluid Mechanics, 2nd Ed. John Wiley, & Sons, NY, p. 651 Y. Xiang, S. W. G. Weisend II and S. Wolf, Numerical Study of Two-Phase He II Stratified Channel Flow, paper CCA-4, 1999 Cryogenic Engineering Conference. J. Panek, Heat Transfer in Horizontal Two Phase He II and Vapor, PhD Thesis, Florida State University (1998). J. Panek and S. W. Van Sciver, Heat Transfer in a Horizontal Channel containing Two-Phase He II, Cryogenics (submitted). D. K. S. R. W. VanSciver, A Capacitive Liquid Helium Level Sensor Instrument, Cryogenics (accepted) 1000 NUMERICAL STUDY OF TWO-PHASE HELIUM II STRATIFIED CHANNEL FLOW Y.
Advances in Cryogenic Engineering by H. S. Yang, H. Nagai, N. Takano, M. Murakami (auth.), Quan-Sheng Shu (eds.)