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24-Stunden-Pflege: Wo kein Kläger, da kein Richter

24-Stunden-Pflege: Wo kein Kläger, da kein Richter
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"Decompression modelling of natural gas-hydrogen mixtures using the Pen" by Xiong Liu, Guillaume Michal et al.

Abstract
A wide application of hydrogen energy is seen as a viable strategy to reduce the excessive release of CO in the atmosphere. Large demand requires the hydrogen to be distributed through pipelines. While blending hydrogen into existing natural gas pipelines is recommended as a transition option to progressively increase the energy share of hydrogen, it is important to develop a better understanding of the decompression characteristics of Natural Gas-Hydrogen (NGH2) mixtures, to ensure that the pipelines are capable of arresting a running ductile fracture. In this paper, Computational Fluid Dynamics (CFD) models incorporating the Peng-Robinson (PR) Equation Of State (EOS) were used to simulate the decompression of NGH2 mixtures. The PR EOS was extended to gas mixtures using the van der Waals mixing rules and three types of combining rules. Two shock tube tests were modelled to validate the performance of the PR EOS with different combining rules. The model was also vali ....

Natural Gas Hydrogen , Computational Fluid Dynamics , Equation Of State , Equation Of State , Fracture Control , Gas Pipeline , கணக்கீட்டு திரவம் இயக்கவியல் ,