Results 51 to 60 of about 26,692 (204)
Design and Test of Cryogenic Cold Plate for Thermal-Vacuum Testing of Space Components
Energies, 2019 This paper proposes a novel cryogenic fluid cold plate designed for the testing of cryogenic space components. The cold plate is able to achieve cryogenic temperature operation down to −196 °C with a low liquid nitrogen (LN2) consumption.
Efrén Díez-Jiménez +4 more
doaj +1 more source
Numerical Thermal Analysis and 2-D CFD Evaluation Model for An Ideal Cryogenic Regenerator
Micromachines, 2020 Regenerative cryocoolers such as Stirling, Gifford–McMahon, and pulse tube cryocoolers possess great merits such as small size, low cost, high reliability, and good cooling capacity.
Natheer Almtireen +2 more
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Void Fraction Measurement System for Steady State Horizontal Two Phase Liquid Nitrogen Flow [PDF]
Journal of Electrical and Electronics Engineering, 2021 A cryogenic flow set-up has been designed and realized, that aimed at investigating experimentally the two-phase flow void fraction of liquid nitrogen in horizontal configurations.
SINGH G. K. +6 more
doaj
A Tiltable Single-Shot Miniature Dilution Refrigerator for Astrophysical Applications
, 2013 We present a 3He / 4He dilution refrigerator designed for cooling astronomical mm-wave telescope receivers to around 100 mK. Used in combination with a Gifford-McMahon closed-cycle refrigerator, 4He and 3He sorption-pumped refrigerators, our cryogen-free
Martinis, Lorenzo +2 more
core +1 more source
Using MRI devices for the energy storage purposes [PDF]
Acta Montanistica Slovaca, 2007 It is well known, that the electrical energy storage in the large scale is basically a difficult process. Such a process is connected with energy losses, as most frequently it is the conversion of electrical energy into another form, for example ...
Štefan Molokáč +2 more
doaj
Energies, 2017 The condensation heat transfer coefficient of R134a was experimentally studied inside two smooth and four micro-fin tubes. The working conditions and structural parameters of the test tubes were selected as the influencing factors, and the experiment was
Qingpu Li +4 more
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Effective thermal conductivity of helium II: from Landau to Gorter-Mellink regimes
, 2013 The size-dependent and flux-dependent effective thermal conductivity of narrow channels filled with He II is analyzed. The classical Landau evaluation of the effective thermal conductivity of quiescent He II is extended to describe the transition to ...
Jou, David +2 more
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Discovery of 6.035GHz Hydroxyl Maser Flares in IRAS18566+0408
, 2012 We report the discovery of 6.035GHz hydroxyl (OH) maser flares toward the massive star forming region IRAS18566+0408 (G37.55+0.20), which is the only region known to show periodic formaldehyde (4.8 GHz H2CO) and methanol (6.7 GHz CH3OH) maser flares. The
A. A. Al-Marzouk +20 more
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A brief summary from the 1985 Large Deployable Reflector (LDR) Asilomar 2 workshop of the requirements for LDR cryogenic cooling is presented. The heat rates are simply the sum of the individual heat rates from the instruments.
Nast, T.
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Three cryogenic questions of importance to Large Deployable Reflector (LDR) are discussed: the primary cooling requirement, the secondary cooling requirement, and the instrument changeout ...
Kittel, Peter
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