Conveners
Wed-Af-Orals Session 12: Heat Transfer
- Laurent Jean Tavian (CERN)
Yonghua HUANG
(Shanghai Jiao Tong University)
09/07/2014, 16:00
C-06: Heat transfer and thermo-physical properties of solids and fluids
Invited Oral (30min)
A new form of a state equation for helium-3 in wide range of temperature and pressure, based on a conceptual extrapolation from the Debye equation for the specific heat of solid materials was previously developed. A deeper look into the performance of the state equation for helium-3 was recently considered necessary and valuable, due to some feedback from cryogenic applications, such as the...
Bertrand Baudouy
(CEA Saclay)
09/07/2014, 16:30
C-06: Heat transfer and thermo-physical properties of solids and fluids
Oral presentation (15min)
We present here the first results on helium heat transfer in a small natural circulation loop above the supercritical pressure. The circulation loop is composed of a condenser, a uniformly heated test section and a return loop. The inner diameter of the tubes constituting the loop is 4 mm and the height of the test section is 23 cm. The condenser is thermally coupled to the second-stage of a...
Dr
Suguru Takada
(National Institute for Fusion Science)
09/07/2014, 16:45
C-06: Heat transfer and thermo-physical properties of solids and fluids
Oral presentation (15min)
Under microgravity, the heat transfer is considered to be different from that under normal gravity condition because of zero subcooling due to zero hydrodynamic pressure in saturated He II. Thus the heat transfer in He II under microgravity is an interesting research target. Microgravity experiments are expected to reveal some hidden mechanism of boiling heat transfer across vapor-liquid...
Prof.
Masahide Murakami
(University of Tsukuba)
09/07/2014, 17:00
C-06: Heat transfer and thermo-physical properties of solids and fluids
Oral presentation (15min)
Film boiling phenomena in He II were studied on the basis of the flow field measured with a PIV (Particle Image Velocimetry). Noisy and silent film boiling modes together with a non-boiling state were generated on/around horizontal planar and cylindrical heaters. For PIV tracer particles, H2-D2 micro solid particles that were neutrally buoyant in He II were used. The flow field was...
Tiemo Winkler
(Technology Department, CERN, Geneva 23, CH-1211, Switzerland)
09/07/2014, 17:15
C-06: Heat transfer and thermo-physical properties of solids and fluids
Oral presentation (15min)
Management of transient heat deposition and extraction in superconducting magnets is becoming increasingly important for the purpose of bringing high energy particle accelerator performance to the limits of beam energy and intensity. Precise knowledge of transient heat deposition phenomena in the magnet cables will permit to push the operation of these magnets as close as possible to their...
Steven Van Sciver
(Florida State University)
09/07/2014, 17:30
C-06: Heat transfer and thermo-physical properties of solids and fluids
Oral presentation (15min)
We report on a quantitative study of the heat flux deposited into a He II bath consequent to a failure of its insulating vacuum jacket. Failure of this vacuum is often referred to as THE worst-case scenario seriously endangering the low temperature equipment and its surroundings. In the case of a vacuum break, air floods into the vacuum jacket and carries with it a significant amount of...
Jun Ishimoto
(Tohoku University)
09/07/2014, 17:45
Oral presentation (15min)
The fundamental characteristics of the cryogenic single-component micro-nano solid nitrogen (SN2) particle production using super adiabatic Laval nozzle and its application to the physical photo resist removal-cleaning technology are investigated by a new type of integrated measurement coupled computational technique. To elucidate the detailed mechanism of micro-nano SN2 particle generation,...
