Advanced Microwave Sensors for Phase Equilibrium Studies

Matthew Hopkins

Research output: ThesisDoctoral Thesis

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Natural gas and hydrogen are fuels that are forecast to shape the future energy landscape. This thesis presents three novel sensors designed to characterise their phase behaviour, to tackle current and future operational challenges that pose risks to production reliability and throughput. While the application of each sensor is unique, they are all based on microwave resonators as the measurement platform. This exploits the inherent accuracy of frequency measurements in conjunction with the robustness of high-pressure cavity resonators and advantage of real-time signal processing. Four techniques are demonstrated addressing phase characterisation, impurity freezeout, solid deposition, and hydrogen isomer composition.
Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • The University of Western Australia
  • Stanwix, Paul, Supervisor
  • May, Eric, Supervisor
Thesis sponsors
Award date5 Aug 2022
Publication statusUnpublished - 2022

Embargo information

  • Embargoed from 16/08/2022 to 14/09/2024. Will become publicly available 14/09/2024.


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