Earticle

초록

영어

This study presents a dynamic simulation-based evaluation of a large-scale helium compressor test system developed for a 5-ton-per-day (TPD) hydrogen liquefaction plant. A one-dimensional transient simulation tool, EcosimPro, equipped with the CryoLib library was used to model the thermofluid behavior of the helium circulation loop and investigate start-up and pressure-control strategies relevant to helium refrigeration systems in cryogenic processes. The analysis focused on the coordinated operation of three pressure control valves—PCV501, PCV504, and PCV505—that regulate the suction and discharge pressures of the compressor. Through a series of dynamic simulations, appropriate control logic for stable pressurization and pressure regulation was derived. Sensitivity analysis further revealed that an initial loop pressure between 7 and 10 barA yields the most stable start-up condition. These findings demonstrate the usefulness of dynamic modeling using EcosimPro–CryoLib for optimizing control strategies in helium-based thermofluidic systems and provide valuable guidance and reference data for the future operation of hydrogen liquefaction infrastructure.

목차

Abstract
1. INTRODUCTION
1.1. Background
1.2. Objectives of Study
1.3. Hydrogen liquefaction process using helium compressor
2. DYNAMIC MODELING AND SIMULATION SETUP
2.1. Helium compressor for 5TPD hydrogen liquefaction
2.2. Design of Testbed for Helium Compressor
2.3. Operational Control Scheme of the Helium Compressor Testbed
2.4. EcosimPro Modeling for Helium Compressor Testbed
3. SIMULATION METHODOLOGY
3.1. Control Scenario Design
3.2. Sensitivity to Initial Helium Loop Pressure Conditions
4. RESULT AND DISCUSSION
4.1. Start-up Response under Different Control Scenarios
4.2. Effect of Initial Helium Loop Pressure
5. CONCLUSION
ACKNOWLEDGMENT
REFERENCES
REFERENCES

키워드

저자

• Byeongchang Byeon [ Gimhae Cryogenic Machinery Demonstration Research Center, Korea Institute of Machinery & Materials, Gimhae, Korea ]
• Mo Se Kim [ Gimhae Cryogenic Machinery Demonstration Research Center, Korea Institute of Machinery & Materials, Gimhae, Korea ]
• Dongmin Kim [ Gimhae Cryogenic Machinery Demonstration Research Center, Korea Institute of Machinery & Materials, Gimhae, Korea ]
• Junghyun Yoo [ Gimhae Cryogenic Machinery Demonstration Research Center, Korea Institute of Machinery & Materials, Gimhae, Korea ]
• Sang Yoon Lee [ Gimhae Cryogenic Machinery Demonstration Research Center, Korea Institute of Machinery & Materials, Gimhae, Korea ]
• Gi Dock Kim [ Gimhae Cryogenic Machinery Demonstration Research Center, Korea Institute of Machinery & Materials, Gimhae, Korea ]
• Jung Hun Kim [ Gimhae Cryogenic Machinery Demonstration Research Center, Korea Institute of Machinery & Materials, Gimhae, Korea ]
• Jaehwan Lee [ Gimhae Cryogenic Machinery Demonstration Research Center, Korea Institute of Machinery & Materials, Gimhae, Korea ]
• Jungmin Lee [ SA Engineering, 40 Sinildong-ro 67beon-gil, Daedeok-gu, Daejeon 34324, Korea ]
• Kiyoung Baik [ SA Engineering, 40 Sinildong-ro 67beon-gil, Daedeok-gu, Daejeon 34324, Korea ]
• Keun Tae Lee [ Gimhae Cryogenic Machinery Demonstration Research Center, Korea Institute of Machinery & Materials, Gimhae, Korea ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국초전도·저온논문지 (구 한국초전도저온공학회논문지) [Progress in Superconductivity and Cryogenics]

• 간기

  계간

• pISSN

  1229-3008

• eISSN

  2287-6251

• 수록기간

  1999~2026

• 등재여부

  KCI 등재,SCOPUS

• 십진분류

  KDC 427 DDC 537