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<p>Gifford-McMahon-type pulse tube cryocoolers (GMPTCs) are prominent cryogenic refrigeration systems whose efficient performance depends on optimized flow dynamics. Most of the emphasis is on the design and optimization of the major components, such as the regenerator and pulse tube, and the importance of the ancillary components in an effective pulse tube cryocooler (PTC) system is undermined. The present study investigates the crucial role of ancillary components such as U-connection, linear connections, regenerator and pulse tube cold-end connections, cold-end heat exchanger (CHX) and hot-end heat exchanger (HHX)—in achieving optimal flow characteristics within a pulse tube system. Computational fluid dynamics (CFD) analysis allows for the individual and comprehensive assessment of each component’s pressure drop and overall fluid flow performance. Based on this analysis, design strategies can be developed for these ancillary components, CHXs and HHXs to ensure minimal flow losses within the pulse tube system. Finally, a cumulative simulation highlights the effectiveness of the chosen designs based on individual optimized fluid flow characteristics. This study offers valuable insights into optimizing the performance of the pulse tube by highlighting the influence of ancillary components on flow dynamics and presenting a data-driven approach for their design through CFD analysis. This can help an eager learner to effectively take up the pulse tube design and development.</p>

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Effect of ancillary component optimization on flow behaviour in GM type U-tube pulse tube cryocoolers

  • 期刊论文

  • 发表日期：

    2025年8月1日

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  • Abhinav B Desai,
  • Rohan Dutta,
  • Hemang Agravat,
  • Avijit Dewasi,
  • Samiran Mukherjee,
  • Vishal Gupta,
  • Jyoti S Mishra,
  • Paresh Panchal,
  • Pratik A Nayak,
  • Ranjana Gangradey

摘要

Gifford-McMahon-type pulse tube cryocoolers (GMPTCs) are prominent cryogenic refrigeration systems whose efficient performance depends on optimized flow dynamics. Most of the emphasis is on the design and optimization of the major components, such as the regenerator and pulse tube, and the importance of the ancillary components in an effective pulse tube cryocooler (PTC) system is undermined. The present study investigates the crucial role of ancillary components such as U-connection, linear connections, regenerator and pulse tube cold-end connections, cold-end heat exchanger (CHX) and hot-end heat exchanger (HHX)—in achieving optimal flow characteristics within a pulse tube system. Computational fluid dynamics (CFD) analysis allows for the individual and comprehensive assessment of each component’s pressure drop and overall fluid flow performance. Based on this analysis, design strategies can be developed for these ancillary components, CHXs and HHXs to ensure minimal flow losses within the pulse tube system. Finally, a cumulative simulation highlights the effectiveness of the chosen designs based on individual optimized fluid flow characteristics. This study offers valuable insights into optimizing the performance of the pulse tube by highlighting the influence of ancillary components on flow dynamics and presenting a data-driven approach for their design through CFD analysis. This can help an eager learner to effectively take up the pulse tube design and development.