Abstract
Using a bellows variable volumometer, precise density data were measured for methylcyclohexane, which is expected to be a chemical hydride for transportation and storage of hydrogen. For further development of an accurate equation of state, measurements were taken in the temperature and pressure ranges 410 K to 600 K and 10 MPa to 200 MPa, respectively. The uncertainties (\(k=2\)) were less than 3.5 mK for the temperature measurements, 0.080 MPa for the pressure measurements, and 0.11% for the density measurements. In the region above 100 MPa and 450 K, the uncertainty for the density measurement increased from 0.11% to 0.22%. The data obtained in this study were systematically compared with available experimental data and theoretical values derived from the available equation of state. This comparison indicated that the model needs to be improved.
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Acknowledgements
This work was supported by a Grant-in-Aid for the Scientific Research Fund 2015–2018 (Project No. 15K05837) from the Ministry of Education, Culture, Sports, Science and Technology, Japan. The funding source did not play a role in any aspect of the study or in our decision to submit the paper for publication.
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Selected paper from Asian Thermophysical Properties Conference Paper.
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Yoneda, Y., Sato, S., Matsumoto, T. et al. Density of Methylcyclohexane at Temperatures up to 600 K and Pressures up to 200 MPa. Int J Thermophys 38, 106 (2017). https://doi.org/10.1007/s10765-017-2241-7
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DOI: https://doi.org/10.1007/s10765-017-2241-7