Quantification of Hydrogen Emission Rates Using Downwind Plume Characterization Techniques

• DOI: 10.1021/acs.est.4c13616
• Publication Date: 2025-03-21T02:44:54Z
• Authors: Ahmad Momeni; John D. Albertson; Scott Herndon; Conner Daube; David Nelson; Joseph Robert Ros...; Joanne Shorter; Elizabeth Lunny; Rick Wehr; Greeshma Gadikota; Yuanfeng Cui; Tianyi Sun
• Keywords: Characterization

Fugitive and operational hydrogen (H2) emissions have been shown to offset the intended climate benefits of H2 as a decarbonization tool because indirectly causes warming through atmospheric chemistry. However, little is known about magnitude value-chain due lack empirical measurements, unavailability precise, fast sensor technology, established methods for emission quantification. In this study, novel prototype was deployed in state-of-the-art mobile laboratory demonstrate that can be accurately quantified using downwind measurement techniques analytics commonly used other gases. A series controlled release experiments were conducted with corelease multiple tracer Tracer flux ratio physics-based Bayesian plume model inversion methodologies quantify rates. We show detects parts-per-billion or higher concentration enhancements source within seconds, similar structures gases confirm their codispersion atmosphere. This enables quantification rates at an accuracy comparable well-studied