Refurbishment of Natural Gas Pipelines towards 100% Hydrogen—A thermodynamic-Based Analysis

Nejc Klopcic*, Thomas Stöhr, Ilena Grimmer, Markus Gerhard Sartory, Alexander Trattner

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Hydrogen is a key enabler of a sustainable society. Refurbishment of the existing natural gas infrastructure for up to 100% H2 is considered one of the most energy- and resource-efficient energy transportation methods. The question remains whether the transportation of 100% H2 with reasonable adaptions of the infrastructure and comparable energy amounts to natural gas is possible. The well-known critical components for refurbishment, such as increased compressor power, reduced linepack as well as pipeline transport efficiencies, and their influencing factors were considered based on thermodynamic calculations with a step-by-step overview. A H2 content of 20–30% results in comparable operation parameters to pure natural gas. In addition to transport in pipelines, decentralized H2 production will also play an important role in addressing future demands.
Original languageEnglish
Article number9370
Issue number24
Publication statusPublished - Dec 2022


  • hydrogen
  • natural gas grid
  • pipeline
  • refurbishment
  • thermodynamic analysis

ASJC Scopus subject areas

  • Control and Optimization
  • Energy (miscellaneous)
  • Engineering (miscellaneous)
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Building and Construction
  • Fuel Technology
  • Renewable Energy, Sustainability and the Environment

Fields of Expertise

  • Sustainable Systems


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