- Titel
- Dew Points for Binary Hydrogen Mixtures and Development of a New Measurement Technique for Mixture Vapor-Liquid Equilibria Based on Microwave Resonators
- Zitierfähige Url:
- https://nbn-resolving.org/urn:nbn:de:bsz:ch1-qucosa2-956525
- Erstveröffentlichung
- 2025
- Datum der Einreichung
- 09.10.2024
- Datum der Verteidigung
- 06.12.2024
- DOI
- https://doi.org/10.60687/2025-0030
- Abstract (EN)
- The ongoing energy transition to address climate change requires low-carbon technologies and the replacement of fossil-fuel-based natural gas with gas from renewable sources. In this context, the application of hydrogen and hydrogen-rich mixtures has grown in importance in recent years. The ability to accurately predict the thermophysical behavior of fluid mixtures is, therefore, crucial for scientific and industrial applications. However, the performance of available thermodynamic models is largely limited by the poor availability and quality of experimental data, leading to significant uncertainties. Microwave-based technology enables accurate and fast investigation of the complete phase behavior of binary fluid mixtures, thereby providing the potential of advancing the state of the art in thermophysical property research. In this context, detailed investigations on thermophysical properties within the vapor-liquid equilibrium (VLE) were conducted using a microwave re-entrant cavity resonator. The focus lies on (1) obtaining low uncertainty experimental dew-point data for industrially relevant mixtures containing hydrogen and (2) developing an advanced measurement technique for investigating the heterogeneous two-phase region of binary mixtures. To further enhance low uncertainty VLE measurements, new cavity designs were developed to fit the specific measuring goals defined for (1) and (2). In this context, a new mechanical in situ mixture agitation system was developed to improve sample mixing.
- Andere Ausgabe
- Dew Points, Dielectric Permittivities, and Densities for (Hydrogen + Carbon Dioxide) Mixtures Determined with a Microwave Re-Entrant Cavity Resonator
DOI: 10.1021/acs.iecr.9b04423 - Dew points for hydrogen-rich (hydrogen + propane) and (hydrogen + butane) mixtures determined with a microwave re-entrant cavity resonator
DOI: 10.1016/j.fuel.2024.132583 - Framework for In Situ Measurements of Vapor–Liquid Equilibrium Using a Microwave Cavity Resonator
DOI: 10.1007/s10765-022-03098-7 - Characterization of Fluid-Phase Behavior Using an Advanced Microwave Re-Entrant Cavity
DOI: 10.1021/acs.jced.0c00213 - Freie Schlagwörter (EN)
- Mixture Dew-point Measurements, Hydrogen, Liquid Volume Fraction Measurements, Microwave Re-entrant Cavity Resonator, Vapor–Liquid Equilibrium
- Klassifikation (DDC)
- 621.4021
- Normschlagwörter (GND)
- Mikrowellenmesstechnik, Phasengleichgewicht, Taupunkt, Wasserstoff
- GutachterIn
- Univ.-Prof. Dr.-Ing. Markus Richter
- Assoc. Prof. Dr. Paul Stanwix
- BetreuerIn Hochschule / Universität
- Univ.-Prof. Dr.-Ing. Markus Richter
- BetreuerIn - externe Einrichtung
- Assoc. Prof. Dr. Paul Stanwix
- Den akademischen Grad verleihende / prüfende Institution
- Technische Universität Chemnitz, Chemnitz
- Version / Begutachtungsstatus
- angenommene Version / Postprint / Autorenversion
- URN Qucosa
- urn:nbn:de:bsz:ch1-qucosa2-956525
- Veröffentlichungsdatum Qucosa
- 18.02.2025
- Dokumenttyp
- Dissertation
- Sprache des Dokumentes
- Englisch
- Lizenz / Rechtehinweis
CC BY 4.0