CEC-ICMC 2019 - Abstracts, Timetable and Presentations

Session

C2Or1C - Non-Aerospace VM and Thermoacoustic Cryocoolers

C2Or1C

23 Jul 2019, 11:00

Level 6, Room 22-23

Conveners

C2Or1C - Non-Aerospace VM and Thermoacoustic Cryocoolers

• Ray Radebaugh (NIST)
• Peter Kittel (Retired)

722. C2Or1C-01: Numerical investigation of the efficiency potential of a cryogen-free VM type pulse tube cooler

Prof. Wei Dai (Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, University of Chinese Academy of Sciences)

23/07/2019, 11:00

Contributed Oral Presentation

Vuilleumier (VM) type pulse tube cooler is a novel kind of cryocooler to obtain liquid helium temperature which had been experimentally verified. However, the efficiency is not satisfying. Based on previous work on a low pressure ratio system, a numerical investigation that explore the effect of high pressure ratios on refrigeration performance is presented in this paper. The research system...