Performance of LN2 transfer lines

Jean Louis Lizon; Roberto Castillo; Patricia Fernandez Izcardo

doi:10.1117/12.2622536

6 September 2022 Performance of LN₂ transfer lines

Jean Louis Lizon, Roberto Castillo, Patricia Fernandez Izcardo

Proceedings Volume 12188, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation V; 1218848 (2022) https://doi.org/10.1117/12.2622536
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Conference Poster

Abstract

With the increasing size of the ground based telescopes, the lines used to carry and distribute cryogenic gas or fluid to instruments need continuously to be longer. Cryogenic transfer lines of a few 10 meters will be common in future infrastructures. Transfer cryogenic fluid requires highly insulated lines in order to minimise the coolant consumption and keep the temperature of this coolant as low as possible. This level of thermal insulation can only been obtained by a vacuum insulation. After a short introduction presenting the conventional designs used for our liquid nitrogen lines, the paper presents and analyses performances measured on different lines.

Citation Download Citation

Jean Louis Lizon, Roberto Castillo, and Patricia Fernandez Izcardo "Performance of LN₂ transfer lines", Proc. SPIE 12188, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation V, 1218848 (6 September 2022); https://doi.org/10.1117/12.2622536

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