Scholarlink

<p>This study developed a numerical methodology for predicting the performance of various cryocoolers used in the pre-cooling stage of a hydrogen liquefaction system. In the experimental investigation, the temperature distribution of the cold head of the cryocooler and the heat pipe attached to its bottom part was measured based on the flow rate of hydrogen gas. A cryocooler model was developed using FLUENT with user-defined functions (UDFs) to investigate the temperature variations at the outlet of the heat pipe and the cold head of the cryocooler. The computational results obtained using the present simulation agreed well with the experimental results, showing highly good accuracy and validity of the present numerical methodology. In the present study, the temperature results at the outlet and cold head were obtained through numerical simulation for various cryocoolers of 80 K. As a result, the outlet temperature of the copper pipe and the cold head temperature were heavily affected by the flow rate of hydrogen gas and the type of cryocooler.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

A study on the performance prediction of various cryocoolers for a pre-cooling of the hydrogen liquefaction system

  • 期刊论文

  • 发表日期：

    2025年5月30日

查看全文
  • Young Min Seo,
  • Hyun Woo Noh,
  • Tae Hyung Koo,
  • Dong Woo Ha,
  • Rock Kil Ko

摘要

This study developed a numerical methodology for predicting the performance of various cryocoolers used in the pre-cooling stage of a hydrogen liquefaction system. In the experimental investigation, the temperature distribution of the cold head of the cryocooler and the heat pipe attached to its bottom part was measured based on the flow rate of hydrogen gas. A cryocooler model was developed using FLUENT with user-defined functions (UDFs) to investigate the temperature variations at the outlet of the heat pipe and the cold head of the cryocooler. The computational results obtained using the present simulation agreed well with the experimental results, showing highly good accuracy and validity of the present numerical methodology. In the present study, the temperature results at the outlet and cold head were obtained through numerical simulation for various cryocoolers of 80 K. As a result, the outlet temperature of the copper pipe and the cold head temperature were heavily affected by the flow rate of hydrogen gas and the type of cryocooler.