High pressure hydrogen adsorption apparatus: Design and error analysis

Ali Qajar, Maryam Peer, Ramakrishnan Rajagopalan, Henry C. Foley

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


In the present work, design and operation of a high pressure gas adsorption apparatus at room temperature and at pressures up to 100 bar are discussed. A theoretical and experimental error analysis is done to determine accuracy and robustness of the measurements. For this study, activated carbon was selected as the adsorbent and hydrogen as the adsorbate gas. A sensitivity analysis was done by taking into account the effects of temperature, pressure, volume and weight of the sample. The analysis shows that the volumes of the sample and reference cells as determined by helium-free space measurements have significant effect on the accuracy of the adsorption uptake measurement. For instance, a 0.1% error in the measurement of either volume led to approximately a 3% error in hydrogen uptake measurement at 298 K and 100 bar.

Original languageEnglish (US)
Pages (from-to)9123-9136
Number of pages14
JournalInternational Journal of Hydrogen Energy
Issue number11
StatePublished - Jun 2012

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology


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