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Vol: 56(70) No: 3 / September 2011 Monitoring and Remote Control of the 13C Separation Column Adrian Olimpiu Neaga Department of Automatic Control, Technical University of Cluj Napoca, Faculty of Automation and Computer Science, 28 Memorandumului Street, 400114 Cluj Napoca, Romania, phone: (+4)0264-401200, e-mail: adrian.neaga@aut.utcluj.ro Clement Festila Department of Automatic Control, Technical University of Cluj Napoca, Faculty of Automation and Computer Science , 28 Memorandumului Street, 400114 Cluj Napoca, Romania Eva Henrietta Dulf Department of Automatic Control, Technical University of Cluj Napoca, Faculty of Automation and Computer Science, 28 Memorandumului Street, 400114 Cluj Napoca, Romania Roxana Both Department of Automatic Control, Technical University of Cluj Napoca, Faculty of Automation and Computer Science, 28 Memorandumului Street, 400114 Cluj Napoca, Romania Tibor Szelitzky Department of Automatic Control, Technical University of Cluj Napoca, Faculty of Automation and Computer Science, 28 Memorandumului Street, 400114 Cluj Napoca, Romania Mihai Gligan National Institute for Research and Development of Isotopic and Molecular Technologies Cluj Napoca, 65-103 Donath Street, 400293 Cluj Napoca, Romania, phone: (+4) 0264-584037, e-mail: mihai.gligan@itim-cj.ro Keywords: (13C) isotope, cryogenic separation column, LabVIEW project, liquid nitrogen level, process computer NI PXI-1031, remote control strategy Abstract The Internet provides a significant benefit for remote maintenance and fault diagnosis of various devices and plants. On this basis, the Internet is used in this paper to implement an application designed to realize the remote control of an industrial process, more accurate the (13C) isotope separation column. The goal is to provide a monitoring and remote control for the level of liquid nitrogen from the condenser using a process computer NI PXI-1031 (PCI eXtensions for Instrumentation) from National Instruments. In order to design a remote control for the column it is needed a series of sensors and transducers to make the operation of the process parameters desired by the user, described in the present work. This remote control is justified by the cryogenic environment. From all inputs of the column is chosen the liquid nitrogen entering in the condenser due to the fact that any fluctuations in the level of liquid nitrogen would compromise the entire process of obtaining the (13C) isotope. As tool is used the LabVIEW, the project being an important step forward for the correlation of the theoretical scientific research results with the concrete information acquired from the experimental plant, and also in the analysis and better understanding of the process operation. The designed controller is an ON-OFF one. Are also discussed the advantages and disadvantages of the remote control strategy. References [1] A. Damian, A. Mihail and B. Aurel, “Isotope Separation 15N, 18O, 10B, 13C by Isotope Exchange”, (in Romanian) Book Publishing House of Science, 1994. [2] V. Gheorghe, “Stable Isotope”, (in Romanian) Technical Publishing, Bucharest, 1968. [3] C. Karl, “The Theory of Isotope Separation as Applied to the Large-Scale Production of U235”, McGraw-Hil Book Company, Inc., 1951. [4] P. Ioana Cristina, D. Eva Henrietta and F. Clement, “Estimator based Flooding Predictor for 13C Cryogenic Separation Column”, IEEE-TTTC International Conference on Automation, Quality and Testing, Robotics AQTR 2008, (THETA 16), Cluj Napoca, Romania, vol. 2, pp. 207-211, 22-25 may, 2008. [5] F. Clement, D. Eva Henrietta and B. Aurel, ”Observer Based Safe Operation of the 13C Cryogenic Separation Column”, ICCC-CONTI 2010, IEEE International Joint Conference on Computational Cybernetics and Technical Informatics, Timisoara, Romania, pp. 37-42, 27-29 may, 2010. [6] N. Adrian Olimpiu, F. Clement, D. Eva Henrietta, B. Roxana, B. Aurel and G. Mihai, ”Real Time Monitoring and Control System of a Separation Column for 13C Isotope”, 18th International Conference on Control Systems and Computer Science (CSCS-18), Bucuresti, Romania, vol. 1, pp. 227-232, 24-27 may, 2011. [7] F. Clement, P. Ioana Cristina, D. Eva Henrietta, B. Aurel and G. Mihai, “Flooding Process Analysis by 13C Cryogenic Separation Column”, IEEE-TTTC International Conference on Automation, Quality and Testing, Robotics AQTR (THETA 16), Cluj Napoca, Romania, pp.96-100, 22-25 may, 2008. [8] D. Eva Henrietta, F. Clement and D. Francisc, “Monitoring and Control System of a Separation Column for 13C Enrichment by Cryogenic Distillation of Carbon Monoxide”, International Journal of Mathematical Models and Methods in Applied Science, 2009, http://www.naun.org/journals/m3as/19-127.pdf. [9] S. Sigurd, “Dynamics and control of distillation columns. A tutorial introduction”, in Trans. IChemE, Vol. 75, Part A. Sept., 1997. [10] N. Adrian Olimpiu, F. Clement, D. Eva Henrietta, B. Roxana, S. Tibor and G. Mihai, “Monitoring and Control of Liquid Nitrogen Level of the 13C Separation Column Using NI PXI-1031”, 6th IEEE International Symposium on Applied Computational Intelligence and Informatics (SACI-2011), ISBN: 978-1-4244-9107-0, Timisoara, Romania, 19-21 may, 2011. [11] National Instruments Corporation, “LabVIEW Basics I Introduction Course Manual”, Course Version 8.0, Part Number 20628P-01, May 2006 Edition. [12] National Instruments Corporation, “LabVIEW Basics II Development Course Manual”, Course Sofware Version 8.0, Part Number 320629P-01, May 2006 Edition. [13] http://www.ni.com. |