Conveners
C4OrD - Novel Concepts and New Devices III
- Robert Duckworth (Oak Ridge National Laboratory)
- Xilong Wang (European Spallation Source ESS AB)
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Prof. SHRIDHAR BAPAT (Department of Mechanical Engineering, Indian Institute of Technology Bombay)02/07/2015, 09:00CEC-17 - Novel Concepts and New DevicesContributed Oral PresentationStirling cryocoolers are capable of satisfying the contemporary requirements of a low-capacity cooler. A compact mechanism that can drive Stirling cryocooler with larger stroke and thus enhance the cooler performance is the need at present. The increase in the stroke will lead to a higher volumetric efficiency. Hence, a cryocooler with larger stroke will experience higher mass flow rate of the...Go to contribution page
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Dr Chao Wang (Cryomech)02/07/2015, 09:15CEC-17 - Novel Concepts and New DevicesContributed Oral PresentationLiquid helium cooled NMR magnets often use liquid nitrogen cooled radiation shields. Among these NMR magnets cryogen boil-off rates of 3L/day of liquid helium and 6L/day of liquid nitrogen are common. We have developed a cryogen recycler for closed loop operation of the helium and nitrogen circuits. With these closed loops, the recycler maintains zero boil-off of both helium and nitrogen. ...Go to contribution page
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jinhui zhang (Zhejiang University)02/07/2015, 09:30CEC-17 - Novel Concepts and New DevicesContributed Oral PresentationDynamic visualization is of great significance in the research of flow conditions and mass transfer process of cryogenic fluids. At present, spot sampling is commonly used in concentration analysis of cryogenic fluids. However, it cannot provide two-dimensional information for large area and will disturb the fluid. In this paper, a non-contact dynamic optical measurement system using laser...Go to contribution page
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Dr Haishan Cao (University of Twente)02/07/2015, 09:45CEC-17 - Novel Concepts and New DevicesContributed Oral PresentationThe aim of the Joule Thomson microcooling research at the University of Twente is to develop small and fully integrated cryogenic cooling systems for cooling small electronic devices. In the previous project, we have successfully developed 100 K single-stage microcoolers and 30 K two-stage microcoolers using standard micromachining technology. In the paper, we now present three new...Go to contribution page
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Patrícia Borges de Sousa (LIBPhys, Physics Department, Faculty of Sciences and Technology, Universidade Nova de Lisboa)02/07/2015, 10:00CEC-17 - Novel Concepts and New DevicesContributed Oral PresentationThe X-IFU instrument for X-ray observation on ESA’s new ATHENA satellite will employ a complex cryogenic chain for detector-cooling down to 50 mK, similar to the one foreseen for the European SAFARI instrument onboard SPICA (JAXA). A problem that typically arises from the use of such systems is the existence of heat peaks during the recycling stages of some parts that can compromise the...Go to contribution page
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Dr Nikolay Tsyrulin (attocube systems AG)02/07/2015, 10:30CEC-17 - Novel Concepts and New DevicesContributed Oral PresentationDimensional changes of solids in varying external conditions such as temperature, pressure, magnetic and electric fields or even light play important role in material science, cryogenic and aerospace engineering. Often the measurements of dimensional changes require high precision combined with ease of use and absence of gravitational effects. We developed a dilatometer based on our miniature...Go to contribution page