ICEC29/ICMC2024

Session

Thu-Or13

25 Jul 2024, 09:00

Salle/Room D (CICG)

Conveners

Thu-Or13: Cryogenics Instrumentation & Devices

• Johan Bremer (CERN)

350. Numerical modeling and design of the acoustic expander for cryogenic refrigeration

Nathaniel O'Connor (MIT Lincoln Laboratory)

25/07/2024, 09:00

ICEC 03: Expanders, pumps, compressors, regenerators and other components

Regular Oral (15m)

Cryogenic refrigerators can be broadly classified as either continuous flow machines or oscillating flow machines. The acoustic expander is a new hybrid approach that combines the best aspects of these two machines. Globally, the working fluid moves continuously through the recuperative heat exchanger of the cycle while locally the working fluid oscillates in the acoustic expander. This...

396. Transient numerical investigation on sealing performance of square labyrinth seal in the liquid hydrogen piston pump

Xiujuan XIE (Key Laboratory of Cryogenic Science and Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences)

25/07/2024, 09:15

ICEC 03: Expanders, pumps, compressors, regenerators and other components

Regular Oral (15m)

Liquid hydrogen piston pumps are widely used for transferring liquid hydrogen due to their low investment, low power consumption and high flow rate. To maintain high efficiency in working condition, it is essential to prevent internal leakage. Labyrinth seals, which are a form of non-contact sealing, have a simple structure, low wear and allow for thermal deformation. They are not limited by...

416. Experimental investigation of a cryogenic printed circuit heat exchanger

Zixin Zhang

25/07/2024, 09:30

ICEC 03: Expanders, pumps, compressors, regenerators and other components

Regular Oral (15m)

With the growing demand for compact and large-capacity cryogenic refrigerators nowadays, large-temperature-span cryogenic heat exchangers (HX), as the key and bulky components, are studied to achieve performance and volume advantage. The printed circuit heat exchangers (PCHE) are supposed to a promising candidates for compact HX for their lower resistance, and flexible design, which have been...

177. Flow characteristics of cryogenic perforated plate balanced flowmeter

Yihan Tian (Key Laboratory of Cryogenic Science and Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences)

25/07/2024, 10:00

ICEC 03: Expanders, pumps, compressors, regenerators and other components

Regular Oral (15m)

Compared with the traditional standard orifice flowmeter, the perforated plate balanced flowmeter has a more stable flow field and a lower pressure loss, making it more suitable for measuring low-temperature fluids, such as liquid methane, liquid oxygen, liquid hydrogen and so on. In this study, a calculation model of the perforated plate balanced flowmeter is established. The simulation...

191. Cryogenic helium valves deflection and relaxation in ESS linac cryogenic distribution system

Jaroslaw Polinski (Wroclaw University of Science and Technology)

25/07/2024, 10:15

ICEC 03: Expanders, pumps, compressors, regenerators and other components

Poster Presentation (120m)

Large scientific facilities make extensive use of cold helium in different thermodynamic states for cryostating of superconducting cavities or magnets. The helium is supplied to cryomodules by cryogenic distribution system which may contain tens of valve boxes and hundreds of cryogenic valves. Cryogenic control valves are considered as a critical part of every cryogenic distribution system not...