HYDROGEN VISCOSITY AT 293 TO 400 K UP TO 100 MPA WITH CAPILLARY TUBE METHOD
A capillary tube viscometer has been developed to measure dynamic viscosity of gases for high pressures and high temperatures range. The gas is supplied to the capillary tube through a pressure regulator unit to maintain a steady state flow from a high-pressure reservoir tank. The capillary tube is made of Quartz glass with the length and the inner diameter of 501.6 mm and 0.0945 mm, respectively. The inner diameter of the present capillary tube was measured with the gravimetric method. A pair of accurate absolute pressure transducer is used as a pressure drop sensor. To measure the flowrate in the tube, we used a volumetric flowmeter drum type. By using these instruments, we can measure pressure drop and flowrate with the relative uncertainty within 1 ％ and 0.5 ％, respectively. The total average uncertainty of the present viscometer is estimated to be 2.0 ％. The performance of the present measurement system is confirmed by measuring nitrogen as a reference gas for temperatures at 293, 333, 400 and 500 K and for pressures up to 100 MPa. We have measured viscosities of hydrogen for the temperature up to 400 K, 100 MPa with a maximum deviation up to 2 ％ compared with the correlation developed by the present authors and REFPROP (NIST).
Elin Yusibani Kanei Shinzato Motoo Fujii Yosuke Nagahama Masamichi Kohno Yasuyuki Takata Peter. L. Woodfield
Research Center for HYDROGENIUS, AIST, Japan Department of Mechanical Engineering, Kyushu University,Fukuoka, Japan School of Engineering,Griffith University,Australia
国际会议
The Ninth Asian Thermophysical Properties Conference(第九届亚洲热物理性能会议 ATPC 2010)
北京
英文
658-663
2010-10-19（万方平台首次上网日期，不代表论文的发表时间）