近临界区二氧化碳声速的精密测量研究
|
摘要
基于圆柱声学共鸣法原理,开展了303.10~303.18 K,压力从3.855 MPa至7.534 MPa的近临界区CO_2测量研究。二氧化碳声速测量的相对标准不确定度结果为:当压力低于7.1 MPa时为0.035%,当压力高于7.3MPa时为0.15%。与CO_2国际标准状态方程计算得到的声速相对偏差分布在0.005%~-0.4%范围。所获得的测量结果可为CO_2国际标准状态方程的改进提供重要数据来源,建立的实验系统和方法可用于更宽广温区CO_2及其他工质的声速精密测量研究。
Using a cylindrical acoustic resonator,the speed of sound in CO_2 at the temperature from 303.10~303.18 K and pressure from 3.855~7.534 MPa is measured.The relative uncertainty of the speed of sound in CO_2 is 0.035% at pressure lower than 7.1 MPa and 0.15%at pressure higher than 7.3 MPa.The relative deviation between present data and the calculation from the equation of state is 0.005%~-0.4%.The measurement results can be used to improve the equation of the state of CO_2.The experimental system and method can be used in the measurement of CO_2 and other working fluids in a wider temperature range in the next future.
Using a cylindrical acoustic resonator,the speed of sound in CO_2 at the temperature from 303.10~303.18 K and pressure from 3.855~7.534 MPa is measured.The relative uncertainty of the speed of sound in CO_2 is 0.035% at pressure lower than 7.1 MPa and 0.15%at pressure higher than 7.3 MPa.The relative deviation between present data and the calculation from the equation of state is 0.005%~-0.4%.The measurement results can be used to improve the equation of the state of CO_2.The experimental system and method can be used in the measurement of CO_2 and other working fluids in a wider temperature range in the next future.
引文
[1]康丽娜,尚会建,郑学明.CO_2的捕集封存技术进展及在我国的应用前景[J].化工进展,2010,29(S1):24-27.
[2]NIST.Proceedings of the Workshop on Future Large CO_2Compression Systems[R].NIST,2009.
[3]Shariatinasab R,Ghayur Safar J,Falaghi H.A New Equation of State for Carbon Dioxide Covering the Fluid Region from the Triple-Point Temperature to 1100 K at Pressures up to 800 MPa[J].Journal of Physical&Chemical Reference Data,1996,25(6):1509-1596.
[4]杨日福,丘泰球.超临界CO_2流体中超声速的特性[J].声学技术,2006,25(5):431-435.
[5]罗奔毅,卢义刚.超临界点附近二氧化碳流体的声速[J].物理学报,2008,57(7):4397-4401.
[6]Moldover M R,Trusler J P M,Edwards T J,et al.Measurements of the universal gas constant R using a spherical acoustic resonator[J].Journal of Research of the National Bureau of Standards,1988,93(2):85-144.
[7]Podesta M D,Underwood R,Sutton G,et al.A lowuncertainty measurement of the Boltzmann constant[J].Metrologia,2013,50(4):354-376.
[8]Pitre L,Sparasci F,Truong D,et al.Measurement of the Boltzmann constant k_B using a quasi-spherical acoustic resonator[J].International Journal of Thermophysics,2011,32(9):1825-1886.
[9]Gavioso R M,Madonna Ripa D,Steur P P M,et al.A determination of the molar gas constant R by acoustic thermometry in Helium[J].Metrologia,2015,52(5):274-304.
[10]Lin H,Feng X J,Gillis K A,et al.Improved determination of the Boltzmann constant using a single,fixed-length cylindrical cavity[J].Metrologia,2013,50(5):417-532.
[11]尹钊玮,冯晓娟,林鸿,等.高压气体声速精密测量系统的研制与测试[J].仪器仪表学报,2013,34(4):774-779.
[12]Trusler J P M.Physical acoustics and metrology of fluids[M].Bristol:Adam Hilger Ltd,1991.
[13]Zhang J T,Lin H,Feng X,et al.Progress toward redetermining the Boltzmann constant with a fixed-pathlength cylindrical resonator[J].International Journal of Thermophysics,2011.32(7):1297-1329.
[14]尹钊玮,冯晓娟,林鸿,等.非连续边界层对圆柱声学共振频率的影响研究[J].计量学报,2014,35(1):1-4.
[15]冯晓娟,林鸿,刘强,等.圆柱定程干涉法声速测量原理与实验系统研制[J].工程热物理学报,2011,32(5):725-728.
[16]伍肆.精密流体声速测量系统研制及高压CO_2声速研究[D].武汉:华中科技大学,2015.
[2]NIST.Proceedings of the Workshop on Future Large CO_2Compression Systems[R].NIST,2009.
[3]Shariatinasab R,Ghayur Safar J,Falaghi H.A New Equation of State for Carbon Dioxide Covering the Fluid Region from the Triple-Point Temperature to 1100 K at Pressures up to 800 MPa[J].Journal of Physical&Chemical Reference Data,1996,25(6):1509-1596.
[4]杨日福,丘泰球.超临界CO_2流体中超声速的特性[J].声学技术,2006,25(5):431-435.
[5]罗奔毅,卢义刚.超临界点附近二氧化碳流体的声速[J].物理学报,2008,57(7):4397-4401.
[6]Moldover M R,Trusler J P M,Edwards T J,et al.Measurements of the universal gas constant R using a spherical acoustic resonator[J].Journal of Research of the National Bureau of Standards,1988,93(2):85-144.
[7]Podesta M D,Underwood R,Sutton G,et al.A lowuncertainty measurement of the Boltzmann constant[J].Metrologia,2013,50(4):354-376.
[8]Pitre L,Sparasci F,Truong D,et al.Measurement of the Boltzmann constant k_B using a quasi-spherical acoustic resonator[J].International Journal of Thermophysics,2011,32(9):1825-1886.
[9]Gavioso R M,Madonna Ripa D,Steur P P M,et al.A determination of the molar gas constant R by acoustic thermometry in Helium[J].Metrologia,2015,52(5):274-304.
[10]Lin H,Feng X J,Gillis K A,et al.Improved determination of the Boltzmann constant using a single,fixed-length cylindrical cavity[J].Metrologia,2013,50(5):417-532.
[11]尹钊玮,冯晓娟,林鸿,等.高压气体声速精密测量系统的研制与测试[J].仪器仪表学报,2013,34(4):774-779.
[12]Trusler J P M.Physical acoustics and metrology of fluids[M].Bristol:Adam Hilger Ltd,1991.
[13]Zhang J T,Lin H,Feng X,et al.Progress toward redetermining the Boltzmann constant with a fixed-pathlength cylindrical resonator[J].International Journal of Thermophysics,2011.32(7):1297-1329.
[14]尹钊玮,冯晓娟,林鸿,等.非连续边界层对圆柱声学共振频率的影响研究[J].计量学报,2014,35(1):1-4.
[15]冯晓娟,林鸿,刘强,等.圆柱定程干涉法声速测量原理与实验系统研制[J].工程热物理学报,2011,32(5):725-728.
[16]伍肆.精密流体声速测量系统研制及高压CO_2声速研究[D].武汉:华中科技大学,2015.