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Humberg K, Richter M. Viscosity Measurements of Krypton at Temperatures from (253.15 to 473.15) K with Pressures up to 2 MPa. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b01533] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kai Humberg
- Ruhr University Bochum, Faculty of Mechanical Engineering, Thermodynamics, Germany
| | - Markus Richter
- Chemnitz University of Technology, Department of Mechanical Engineering, Applied Thermodynamics, Germany
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Myatt PT, Dham AK, Chandrasekhar P, McCourt FRW, Le Roy RJ. A new empirical potential energy function for Ar2. Mol Phys 2018. [DOI: 10.1080/00268976.2018.1437932] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Philip T. Myatt
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada
| | - Ashok K. Dham
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada
- Department of Physics, Punjabi University, Patiala, India
| | | | | | - Robert J. Le Roy
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada
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Zhang K, Feng XJ, Gillis K, Moldover M, Zhang JT, Lin H, Qu JF, Duan YN. Acoustic and microwave tests in a cylindrical cavity for acoustic gas thermometry at high temperature. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2016; 374:20150049. [PMID: 26903106 PMCID: PMC4884642 DOI: 10.1098/rsta.2015.0049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/23/2015] [Indexed: 06/05/2023]
Abstract
Relative primary acoustic gas thermometry (AGT) determines the ratios of thermodynamic temperatures from measured ratios of acoustic and microwave resonance frequencies in a gas-filled metal cavity on isotherms of interest. When measured in a cavity with known dimensions, the frequencies of acoustic resonances in a gas determine the speed of sound, which is a known function of the thermodynamic temperature T. Changes in the dimensions of the cavity are measured using the frequencies of the cavity's microwave resonances. We explored techniques and materials for AGT at high temperatures using a cylindrical cavity with remote acoustic transducers. We used gas-filled ducts as acoustic waveguides to transmit sound between the cavity at high temperatures and the acoustic transducers at room temperature. We measured non-degenerate acoustic modes in a cylindrical cavity in the range 295 K
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Affiliation(s)
- K Zhang
- Department of Thermal Engineering, Tsinghua University, Beijing 100084, People's Republic of China Division of Thermophysics and Process Measurements, National Institute of Metrology, Beijing 100029, People's Republic of China
| | - X J Feng
- Division of Thermophysics and Process Measurements, National Institute of Metrology, Beijing 100029, People's Republic of China
| | - K Gillis
- National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - M Moldover
- National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - J T Zhang
- Division of Thermophysics and Process Measurements, National Institute of Metrology, Beijing 100029, People's Republic of China
| | - H Lin
- Division of Thermophysics and Process Measurements, National Institute of Metrology, Beijing 100029, People's Republic of China
| | - J F Qu
- Division of Thermophysics and Process Measurements, National Institute of Metrology, Beijing 100029, People's Republic of China
| | - Y N Duan
- Division of Thermophysics and Process Measurements, National Institute of Metrology, Beijing 100029, People's Republic of China
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