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    <title language="eng">Blending hydrogen into natural gas: An assessment of the capacity of the German gas grid</title>
    <abstract language="eng">In the transition towards a pure hydrogen infrastructure, repurposing the existing natural gas infrastructure is considered. In this study, the maximal technically feasible injection of hydrogen into the existing German natural gas transmission network is analysed with respect to regulatory limits regarding the gas quality. We propose a transient tracking model based on the general pooling problem including linepack. The analysis is conducted using real-world hourly gas flow data on a network of about 10,000 km length.</abstract>
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    <author>Janina Zittel</author>
    <author>Thorsten Koch</author>
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    <title language="eng">Blending hydrogen into natural gas: An assessment of the capacity of the German gas grid; Technical Report</title>
    <abstract language="eng">In the transition towards a pure hydrogen infrastructure, utilizing the existing natural gas infrastructure is a necessity. In this study, the maximal technically feasible injection of hydrogen into the existing German natural gas transmission network is analysed with respect to regulatory limits regarding the gas quality. We propose a transient tracking model based on the general pooling problem including linepack. The analysis is conducted using real-world hourly gas flow data on a network of about 10,000 km length.</abstract>
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    <author>Jaap Pedersen</author>
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