This report describes the developed protocols for gas sampling (air and H2) and the validation of the subsequent analysis by in-tube extraction dynamic headspace coupled to gas chromatographymass spectrometry (ITEX-DHS-GC-MS) carried out at the University of A Coruña (UDC) for the determination of halogenated volatile organic compounds (VOCs). These compounds, if present in the input gases of the fuel cell, can affect its efficiency and durability. Their monitoring at the outlet of the test bench could also have potential to be a useful tool to evaluate the membrane degradation.
The developed methodology has been applied to different gas lines, and to ambient air, in the demonstration H2 platform at CEA called “SENEPY”. The results are presented and discussed in this report, which also includes a literature review about expected levels of the VOCs in ambient air in
sites of diverse typologies and from different countries.
Besides and in the frame of WP1 activities, humidity measurements in the H2 stream produced by a commercial electrolyzer have been carried out using a state-of-art humidity sensor equipped in our hydrogen platform. The results obtained as a function of the production rate and time are presented
and compared to the electrolyzer specifications. For further details and comparison with WP1 results, the reader is invited to consult the dedicated D1 and D2 deliverables of the Mefhysto project.
Validation report of a metrological chain for gas quality measurement at a H2 demonstration platform level
Download report from Aug 2023 (M36)
