Experiment on diffusion coefficient of carbon dioxide in RP-3 aviation fuel
-
摘要: 基于压力降落法原理,搭建扩散系数测试实验装置,测试了29815K时CO2在水中的扩散系数并与文献值比较,验证了实验系统的可靠性。实验测定了密闭容器中28315~33315K时CO2RP3燃油体系中的压力随时间的变化值。实验测量曲线与数值拟合曲线完全稳合,计算得出不同温度下气体在燃油中的扩散系数值为10-8m2/s数量级。由实验结果可知:气体扩散系数与温度之间符合化学反应阿伦尼乌斯定律,由此根据已有扩散系数值可建立CO2在RP3燃油中扩散系数预测模型。采用25315、26315K和27315K时3组实验数据来验证模型的准确性,结果显示实验数据符合预测模型方程,模型具有一定的外延性。Abstract: A experiment apparatus based on the pressure decltion method was constructed, and the preliminary results concerning the carbon dioxideWater diffusion system at 29815K were in reasonable agreement with other report. Then it was used to measure the gas pressure versus time for carbon dioxideRP3 aviation fuel system under a temperature range from 28315K to 333.15K. The fitting curve agreed with the experimental data perfectly, the diffusion coefficient values at different temperatures were of magnititude 10-8m2/s. From the experimental result, the relationship between the mass diffusion coefficient and temperature satisfied the Arrhenius rate law. A model of prediction of diffusion coefficient of carbon dioxide in RP3 aviation fuel was built according to existing data in the experiment. To verify the accuracy of the prediction model, more experiments under the conditions of 253.15, 263.15K and 273.15K were conducted. The experiment results matched the fitting equation with accuracy and extensionality.
-
[1] JOHNSON R W,ZAKI R,YATES S F.Advanced carbon dioxide fuel tank inverting system:US11/560290[P].2011-03-15. [2] LIMAYE S,KOENIG D.Catalytic reactive component reduction system and methods for the use thereof:US11/994801[P].2010-04-13. [3] LIMAYE S Y K D J W.Advanced carbon dioxide fuel tank inerting system with desulfurization:US11/556410[P].2009-08-12. [4] MORRIS R W,MILLER J.Fuel deoxygenation and aircraft thermal management[R].San Diego:the 4th International Energy Conversion Engineering Conference and Exhibit,2006. [5] REID R C,SHERWOOD T K.Properties of gases and liquids[M].3rd ed.New York:McCrawHill,1977. [6] BEEK W J.Transport phenomena[M].2nd ed.New Jersey:John Wiley and Sons,2003. [7] CUSSLER E L.Mass transfer in fluid systems[M].2nd ed.Cambridge:Cambridge University Press,2002. [8] ETMINAN S R,MAINI B B,CHEN Z,et al.Constantpressure technique for gas diffusivity and solubility measurements in heavy oil and bitumen[J].Energy Fuels,2010,24(1):533-549. [9] DING C,FAN Y.Measurement of diffusion coefficients of air in silicone oil and in hydraulic oil[J].Chinese Journal of Chemical Engineering,2011,19(2):205-211. [10] GROGAN A T,PINCZEWSKI W V.The role of molecular diffusion processes in tertiary CO2 flooding[J].Journal of Canadian Petroleum Technology,1987,39(5):591-602. [11] ZHANG Y P,HYNDMAN C L,MAINI B B.Measurement of gas diffusivity in heavy oils[J].Journal of Petroleum Science and Engineering,2000,25(1/2):37-47. [12] RIAZI M R.A new method for experimental measurement of diffusion coefficients in reservoir fluids[J].Journal of Petroleum Science and Engineering,1996,14(3/4):235-250. [13] GUSTAFSSON N O,WESTRIN B,AXELSSON A,et al.Measurement of diffusion coefficients in gels using holographic laser interferometer[J].Biotechnology Progress,2002,9(4):436-441. [14] 马友光,李欣,冯惠生.液相扩散系数的激光全息法测定[J].天津大学学报,2001,34(5):678-680.MA Youguang,LI Xin,FENG Huisheng.Measurement of liquid diffusion coefficients by laser holographic interference technique[J].Transactions of Tianjin University,2001,34(5):678-680.(in Chinese) [15] RENNER T A.Measurement and correlation of diffusion coefficients for CO2 and richgas applications[J].Society of Petroleum Engineers,1988,3(2):517-523. [16] SVRCEK W Y,MEHROTRA A K.Gas solubility,viscosity and density measurements for Athabasca bitumen[J].Journal of Canadian Petroleum Technology,1982,21(4):31-38. [17] NGUYEN T A,FAROUQALI S M.Role of diffusion and gravity segregation in oil recovery by the immiscible carbon dioxide wag process[R].New York:United Nations Institute for Training and Research(UNITAR) International Conference on Heavy Crude and Tar Sands,1995. [18] UPRETI S R,MEHROTRA A K.Experimental measurement of gas diffusivity in bitumen:results for carbon dioxide[J].Industrial and Engineering Chemistry Research,2000,39(4):1080-1087. [19] UPRETI S R,MEHROTRA A K.Diffusivity of CO2,CH4,C2H6,and N2 in Athabasca bitumen[J].Canadian Journal of Chemical Engineering,2002,80(1):116-125. [20] THARANIVASAN A K,YANG C D,GU Y G.Comparison of three different interface mass transfer models used in the experimental measurement of solvent diffusivity in heavy oil[J].Journal of Petroleum Science and Engineering,2004,44(3/4):269-282. [21] CRANK J.The mathematics of diffusion[M].2nd ed.Oxford:Clarendon Press,1995. [22] CUSSLER E L.扩散流体系统中的传质[M].王宇新,姜忠义,译.北京:化学工业出版社,2002.
点击查看大图
计量
- 文章访问数: 803
- HTML浏览量: 4
- PDF量: 696
- 被引次数: 0