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CEC-ICMC 2015 - Timetable, Abstracts and Presentations

28 June 2015 to 2 July 2015
JW Marriott Starr Pass Resort
Etc/GMT-7 timezone

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Session

C3OrK - Special Session: JT Coolers

C3OrK
1 Jul 2015, 16:15
JW Marriott Starr Pass Resort

JW Marriott Starr Pass Resort

Tucson, Arizona USA

Conveners

C3OrK - Special Session: JT Coolers

  • Jacob Kephart (Navy Ships Systems Engineering Station)
  • Than Yatming (BNL)

Presentation materials

There are no materials yet.

  1. 208. Thermodynamic analysis of a intermediate cooled heat exchanger working in high temperature ratio for Joule-Thomson cooler
    Mr Xuan Tao (Institute of Refrigeration and Cryogenics,Zhejiang University)
    01/07/2015, 16:15
    CEC-03 - Cryocoolers (Non-Aerospace)
    Contributed Oral Presentation
    Heat exchangers of high efficiency are critical components in cryocoolers, whose performance influences the overall performance of the cryocoolers to a large extent. The entropy generation in heat exchangers primarily is a result of heat transfer across finite temperature difference. The traditional approach is to increase the heat transfer area and heat transfer coefficient so as to reduce...
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  2. 158. Performance analysis of a miniature Joule-Thomson cryocooler with and without the distributed J-T effect
    Milind Atrey (Indian Institute of Technology Bombay), Dr Rashmin Damle (IIT Bombay)
    01/07/2015, 16:30
    CEC-03 - Cryocoolers (Non-Aerospace)
    Contributed Oral Presentation
    Cryogenic temperatures are required for proper functioning of infrared sensors and thermal cameras, space chamber simulations, preservation of biological samples, etc. Such temperatures can be produced by expanding a high pressure gas in a relatively easier way. This is popularly known as the Joule-Thomson (J-T) effect. A typical miniature J-T cryocooler consists of a storage...
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  3. 275. Modeling the Adsorption of Mixed-Gases Based on Pure Gas Adsorption Properties
    Dr Nir Tzabar (University of Twente)
    01/07/2015, 16:45
    CEC-04 - Cryocoolers (Aerospace)
    Contributed Oral Presentation
    Sorption-based Joule-Thomson (JT) cryocoolers often operate with pure gases. A sorption-based compressor has many benefits; however, it is limited by the pressure ratios it can provide. Using a mixed-refrigerant (MR) instead of a pure refrigerant in JT cryocoolers allows working at much lower pressures. Therefore, it is desired to use MRs in sorption-based cryocoolers in order to reduce one...
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  4. 474. Development of a sorption-based Joule-Thomson cooler for the METIS instrument on E-ELT
    Marcel ter Brake (University of Twente, The Netherlands)
    01/07/2015, 17:00
    CEC-03 - Cryocoolers (Non-Aerospace)
    Contributed Oral Presentation
    METIS, the Mid-infrared E-ELT Imager and Spectrograph, is one of the proposed instruments for the European Extremely Large Telescope (E-ELT) that will cover the thermal/mid-infrared wavelength range from 3- 14 μm. Its detectors and optics require cryogenic cooling at four temperature levels, 8 K for the N-band detectors, 25 K for the N-band imager, 40 K for the L/M-band detectors and 70 K for...
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  5. 245. Reduction in variation in refrigeration temperature for a sorption compressor based J-T cooler
    Prof. SHRIDHAR BAPAT (Mechanical Engineering Department, Indian Institute of Technology Bombay, Mumbai 400076, India)
    01/07/2015, 17:15
    CEC-05 - Expanders, Pumps, Compressors, and Regenerators
    Contributed Oral Presentation
    The requirement of a cryocooler with practically zero vibration and no electromagnetic interference has led to development of sorption compressor based Joule-Thomson (J-T) coolers. The adsorption is carried out at near room temperature and desorption process at an elevated temperature. High pressure is generated due to accumulation of desorbed gases inside the adsorber cell on providing heat...
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