University of Sussex homepage

DrHejun Hui

School Tutor in Engineering (Engineering and Design)

School of Engineering and Informatics

Orcid identifier0009-0007-1698-3194
  • School Tutor in Engineering (Engineering and Design)
    School of Engineering and Informatics

BIO

I am a researcher in cryogenic engineering, specialising in the development of efficient, sustainable cryogenic systems with low vibration for quantum technologies, precision measurement and space instrumentation. My research spans temperatures from 300 mK to 300 K, with an emphasis on cooling without liquid helium, reduced energy consumption and thermal stability.

 

My research combines thermodynamic modelling, electromechanical design and experimental validation, covering cryogenic platforms, pulse tube cryocoolers and linear compressors. I develop active phase control and acoustic power recovery methods to improve cryocooler efficiency and enable adaptive cooling capacity regulation. I also investigate flexible thermal links and vibration isolation strategies that combine efficient heat transfer with minimal mechanical disturbance, supporting stable cooling for sensitive instruments.

 

I have authored more than 15 peer reviewed publications and am a named inventor on six granted patents. I have secured over £150,000 in research funding as principal investigator and serve as a reviewer for leading journals, including Energy Conversion and Management and Applied Thermal Engineering. I have also been endorsed by the Royal Academy of Engineering under the Exceptional Promise category of the UK Global Talent route.

ACADEMIC POSITIONS

  • Associate Research Professor (Young Researcher Track)
    Chinese Academy of Sciences, China1 Sep 2024
  • Visiting Research Fellow
    University of Sussex, Brighton, United Kingdom20 Jun 2025 - 1 Jan 2026

DEGREES

  • PhD
    University of Chinese Academy of Sciences, China1 Sep 2019 - 30 Jun 2024

SUSTAINABLE DEVELOPMENT GOALS

  • 7 Affordable and Clean Energy
  • 9 Industry, Innovation and Infrastructure