Related Experiment Video
Updated: Sep 10, 2025

Fabrication and Characterization of Superconducting Resonators
Published on: May 21, 2016
Upscaling of thermoacoustic-Stirling duplex cryocoolers based on resonance tube coupling
Liping Wei1,2, Haojie Sun1, Hangyu Ma1,2
1Key Laboratory of Cryogenic, Chinese Academy of Sciences, Beijing 100190, China.
Abstract:
To address the critical need for energy-efficient and environmentally sustainable cooling technologies, the thermoacoustic-Stirling duplex cryocooler (TSDC) offers a promising solution due to its high efficiency and versatile applications. However, the limited cooling capacity of individual TSDCs poses a significant challenge for practical implementation, necessitating system upscaling. To enhance power density and performance, we optimized a resonance tube-coupled TSDC by incorporating a coiled resonance tube and developing an active displacer modeling approach. A prototype with optimized dimensions was constructed and tested, demonstrating a linear relationship between cooling power at 130 K and input heating power, with a maximum cooling capacity of 380 W achieved at an exergy efficiency of 6.36%. Compared to prior studies, which reported no cooling power at 110 K, this represents a substantial advancement in TSDC scalability. Comparative analysis of experimental and theoretical results suggests that asymmetric flow at the compression junction adversely affects efficiency, providing valuable insights for further optimization.
Related Concept Videos
Steady, Laminar Flow in Circular Tubes
Steady, Laminar Flow Between Parallel Plates
Joule-Thomson Effect
This experiment forces high-pressure gas through a throttle valve or a porous plug to a lower-pressure region. The gas expands as it passes through to...
Mechanisms of Heat Transfer II
Sound Waves: Resonance

