Pub Date : 1996-10-14DOI: 10.1088/0022-3727/29/10/015
B. Pokrzywka, K. Musioł, S. Pellerin, E. Pawelec, J. Chapelle
Several thin layers of an arc plasma column were observed side-on at different distances from the cathode. The arc was operated in argon at atmospheric pressure with the arc current equal to 200 A. As the basic diagnostic method we used the Olsen - Richter diagrams. For determination of temperature the Larenz - Fowler - Milne and Boltzmann plot methods were applied. Electron density was measured from the Stark width of the ArII line and continuum intensity. The plasma near the cathode tip shows axial and radial dependence of its physical equilibrium state. In the hot core, the plasma is in LTE. Toward outer zones, the plasma state deviates from LTE. For plasma layers closer to the cathode, this deviation begins at smaller distances from the axis and for higher temperatures it vanishes for h > 3 mm. It is caused after all by the ArI ground state overpopulation. Theoretical estimations of the ArI ground state overpopulation give results consistent with experiment. Calculations show that this overpopulation is caused by inward transport of ground state atoms into the plasma column.
{"title":"SPECTROSCOPIC INVESTIGATION OF EQUILIBRIUM STATE IN ELECTRIC ARC CATHODE REGION","authors":"B. Pokrzywka, K. Musioł, S. Pellerin, E. Pawelec, J. Chapelle","doi":"10.1088/0022-3727/29/10/015","DOIUrl":"https://doi.org/10.1088/0022-3727/29/10/015","url":null,"abstract":"Several thin layers of an arc plasma column were observed side-on at different distances from the cathode. The arc was operated in argon at atmospheric pressure with the arc current equal to 200 A. As the basic diagnostic method we used the Olsen - Richter diagrams. For determination of temperature the Larenz - Fowler - Milne and Boltzmann plot methods were applied. Electron density was measured from the Stark width of the ArII line and continuum intensity. The plasma near the cathode tip shows axial and radial dependence of its physical equilibrium state. In the hot core, the plasma is in LTE. Toward outer zones, the plasma state deviates from LTE. For plasma layers closer to the cathode, this deviation begins at smaller distances from the axis and for higher temperatures it vanishes for h > 3 mm. It is caused after all by the ArI ground state overpopulation. Theoretical estimations of the ArI ground state overpopulation give results consistent with experiment. Calculations show that this overpopulation is caused by inward transport of ground state atoms into the plasma column.","PeriodicalId":271367,"journal":{"name":"Proceeding of Progress in Plasma Processing of Materials 1997","volume":"156 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124371965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
L. Fulcheri, G. Flamant, B. Ravary, F. Fabry, L. Ménard
A 3-phase plasma reactor has been developed in the frame of researches on Carbon Black production from hydrocarbon cracking. The process optimization has led us to characterize the pilot into two main directions : are zone behavior and general flow field into the reactor. The are zone analysis has been carried out using ultra high-speed cine-camera. The Bow in the reactor has been modelled with a CFD code. Results have been compared with experimental measurements.
{"title":"CHARACTERIZATION OF A 3 - PHASE A. C. PLASMA PROCESS","authors":"L. Fulcheri, G. Flamant, B. Ravary, F. Fabry, L. Ménard","doi":"10.1615/itppc-1996.120","DOIUrl":"https://doi.org/10.1615/itppc-1996.120","url":null,"abstract":"A 3-phase plasma reactor has been developed in the frame of researches on Carbon Black production from hydrocarbon cracking. The process optimization has led us to characterize the pilot into two main directions : are zone behavior and general flow field into the reactor. The are zone analysis has been carried out using ultra high-speed cine-camera. The Bow in the reactor has been modelled with a CFD code. Results have been compared with experimental measurements.","PeriodicalId":271367,"journal":{"name":"Proceeding of Progress in Plasma Processing of Materials 1997","volume":"1949 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129286853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
F. Fabry, L. Fulcheri, G. Flamant, J. Badie, B. Ravary, Jean-Yves Peroy, F. Fischer, J. Saint-Just, F. Kassabji
{"title":"HEAT AND MASS BALANCE ON A PILOT PLASMA REACTOR FOR CARBON COMPOUND SYNTHESIS FROM HYDROCARBONS","authors":"F. Fabry, L. Fulcheri, G. Flamant, J. Badie, B. Ravary, Jean-Yves Peroy, F. Fischer, J. Saint-Just, F. Kassabji","doi":"10.1615/itppc-1996.380","DOIUrl":"https://doi.org/10.1615/itppc-1996.380","url":null,"abstract":"","PeriodicalId":271367,"journal":{"name":"Proceeding of Progress in Plasma Processing of Materials 1997","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129719311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Thermodynamic and Transport properties of Nonequilibrium Thermal Plasmas containing chlorinated hydrocarbons between 1 000 K and 30 000 K","authors":"T. Caesar, H. Bollmann, H. Wilhelmi","doi":"10.1615/itppc-1996.680","DOIUrl":"https://doi.org/10.1615/itppc-1996.680","url":null,"abstract":"","PeriodicalId":271367,"journal":{"name":"Proceeding of Progress in Plasma Processing of Materials 1997","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124940659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H. Klotz, R. Mach, F. Oleszak, H. Drost, E. Schierhorn, I. Dorfel
{"title":"PLASMA SYNTHESIS OF ULTRAFINE SIC/TIC-COMPOSITE POWDERS","authors":"H. Klotz, R. Mach, F. Oleszak, H. Drost, E. Schierhorn, I. Dorfel","doi":"10.1615/itppc-1996.670","DOIUrl":"https://doi.org/10.1615/itppc-1996.670","url":null,"abstract":"","PeriodicalId":271367,"journal":{"name":"Proceeding of Progress in Plasma Processing of Materials 1997","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125937214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"MODELING OF A PLASMA SPRAY SYSTEM","authors":"B. Dussoubs, A. Vardelle, P. Fauchais","doi":"10.1615/itppc-1996.1020","DOIUrl":"https://doi.org/10.1615/itppc-1996.1020","url":null,"abstract":"","PeriodicalId":271367,"journal":{"name":"Proceeding of Progress in Plasma Processing of Materials 1997","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121992586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Analysis of the near-cathode region in high-pressure discharge lamps","authors":"R. Almeida, M. Benilov","doi":"10.1615/itppc-1996.970","DOIUrl":"https://doi.org/10.1615/itppc-1996.970","url":null,"abstract":"","PeriodicalId":271367,"journal":{"name":"Proceeding of Progress in Plasma Processing of Materials 1997","volume":"382 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124757446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Performances of a high power inductive plasma torch at medium frequency","authors":"P. Fache, B. Paya","doi":"10.1615/itppc-1996.70","DOIUrl":"https://doi.org/10.1615/itppc-1996.70","url":null,"abstract":"","PeriodicalId":271367,"journal":{"name":"Proceeding of Progress in Plasma Processing of Materials 1997","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114089856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
L. Trenty, A. Bouvier, C. Delalondre, O. Simonin, J. Guillot
{"title":"NUMERICAL INVESTIGATION ON AN ANODIC METAL BATH HEATED WITH A TRANSFERRED ARC","authors":"L. Trenty, A. Bouvier, C. Delalondre, O. Simonin, J. Guillot","doi":"10.1615/itppc-1996.620","DOIUrl":"https://doi.org/10.1615/itppc-1996.620","url":null,"abstract":"","PeriodicalId":271367,"journal":{"name":"Proceeding of Progress in Plasma Processing of Materials 1997","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116216482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A SOLAR-PLASMA PROCESS FOR EVALUATION OF CATALYTIC RECOMBINATION FLUXES ON CERAMIC MATERIALS AT HIGH TEMPERATURE","authors":"M. Balat, M. Czerniak","doi":"10.1615/itppc-1996.630","DOIUrl":"https://doi.org/10.1615/itppc-1996.630","url":null,"abstract":"","PeriodicalId":271367,"journal":{"name":"Proceeding of Progress in Plasma Processing of Materials 1997","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124152056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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