TY - JOUR
T1 - High pressure hydrogen adsorption apparatus
T2 - Design and error analysis
AU - Qajar, Ali
AU - Peer, Maryam
AU - Rajagopalan, Ramakrishnan
AU - Foley, Henry C.
N1 - Funding Information:
The authors would like to acknowledge Dr. John Zielinski from Air Products and Chemicals, Inc. for helpful discussion on the design of differential pressure apparatus. This work was supported from DOE through the grant No. DE-FC36-05GO15077 .
PY - 2012/6
Y1 - 2012/6
N2 - 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.
AB - 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.
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U2 - 10.1016/j.ijhydene.2012.03.002
DO - 10.1016/j.ijhydene.2012.03.002
M3 - Article
AN - SCOPUS:84861099725
SN - 0360-3199
VL - 37
SP - 9123
EP - 9136
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
IS - 11
ER -
