Conveners
C2OrD - CFD and Numerical Modelling
- Parthasarathi Ghosh (Indian Institute of Technology, Kharagpur, India)
- Peter Knudsen (Jefferson Lab)
Nilotpala Bej
(Indian Institute of Technology, Kharagpur)
30/06/2015, 11:00
CEC-12 - Fluid Mechanics, Heat Transfer, and Cryogen Properties
Contributed Oral Presentation
Ranque -Hilsch vortex tube is a device that is capable of splitting the highly compressed inlet gas into two streams of lower pressure gases, namely, central zone of cold fluid generated near the axis and peripheral zone of hot fluid around the inner wall of the tube. Though, vortex tube has many benefits over the conventional heating and cooling devices, low efficiency is the biggest drawback...
Mr
Aman Kumar Dhillon
(Indian Institute of Technology, Kharagpur)
30/06/2015, 11:15
CEC-12 - Fluid Mechanics, Heat Transfer, and Cryogen Properties
Contributed Oral Presentation
Vortex tube (VT) is a simple low refrigeration producing device having no moving part. However, the flow inside it is very complex. Recent studies show that the performance of VT improves with the increase in the divergence angle of a flared VT. To explore the temperature separation phenomenon in the VT, a three dimensional computational fluid dynamics (CFD) analysis of VT was carried out. For...
Mr
Matthieu Scannapiego
(Karlsruhe Institute of Technology)
30/06/2015, 11:30
CEC-12 - Fluid Mechanics, Heat Transfer, and Cryogen Properties
Contributed Oral Presentation
Large customized cryogenic pumps are used in fusion reactors to evacuate the plasma exhaust from the torus. They usually consist in an active pumping surface area cooled below 5 K and shielded from direct outer thermal radiation by plates cooled at about 80K. Cryopumps are exposed to excessively high heat fluxes during pumping operation and follow regeneration cycles with rapid warm-up and...
Dr
Dmitry Luchinsky
(Mission Critical Technologies)
30/06/2015, 11:45
CEC-12 - Fluid Mechanics, Heat Transfer, and Cryogen Properties
Contributed Oral Presentation
We report on the development of a hierarchy of models of two-phase flow in cryogenic transfer line. The work is motivated by NASA plans to develop and maturate technology of cryogenic propellant loading on the ground and in space. The solution of this problem requires two-phase cryogenic flow models that are fast and accurate enough to identify flow conditions, to detect deviations from the...
