Documents disponibles écrits par cet auteur

Comments and further results on “a new critical formula and mathematical model of double-tap interphase reactor in a six-phase tap-changer diode rectifier” / Fangang, Meng in IEEE transactions on industrial electronics, Vol. 57 N° 3 (Mars 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 3 (Mars 2010) . - pp. 950 - 953 Titre : Comments and further results on “a new critical formula and mathematical model of double-tap interphase reactor in a six-phase tap-changer diode rectifier” Type de document : texte imprimé Auteurs : Fangang, Meng, Auteur ; Shiyan, Yang, Auteur ; Wei, Yang, Auteur Article en page(s) : pp. 950 - 953 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Double-tap  changer  Interfase  reactor  (IFR)  Mathematical  model Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents some comments and further results concerning the mathematical model of double-tap interphase reactor (IPR) in a six-phase tap-changer diode rectifier. On the basis of coupling circuit principle and phase-coordinate method, the proposed model, which reduces the mutual inductance coupling completely, describes the double-tap IPR by an admittance matrix containing the information about the connection way and electrical quantities. Some computer simulation and experiments are included to support the theoretical analysis of the model. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4957101 [article] Comments and further results on “a new critical formula and mathematical model of double-tap interphase reactor in a six-phase tap-changer diode rectifier” [texte imprimé] / Fangang, Meng, Auteur ; Shiyan, Yang, Auteur ; Wei, Yang, Auteur . - pp. 950 - 953. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 3 (Mars 2010) . - pp. 950 - 953 Mots-clés : Double-tap  changer  Interfase  reactor  (IFR)  Mathematical  model Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents some comments and further results concerning the mathematical model of double-tap interphase reactor (IPR) in a six-phase tap-changer diode rectifier. On the basis of coupling circuit principle and phase-coordinate method, the proposed model, which reduces the mutual inductance coupling completely, describes the double-tap IPR by an admittance matrix containing the information about the connection way and electrical quantities. Some computer simulation and experiments are included to support the theoretical analysis of the model. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4957101

Optimum design of interphase reactor with double-tap changer applied to multipulse diode rectifier / Shiyan, Yang in IEEE transactions on industrial electronics, Vol. 57 N° 9 (Septembre 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 9 (Septembre 2010) . - pp. 3022 - 3029 Titre : Optimum design of interphase reactor with double-tap changer applied to multipulse diode rectifier Type de document : texte imprimé Auteurs : Shiyan, Yang, Auteur ; Fangang, Meng, Auteur ; Wei, Yang, Auteur Année de publication : 2011 Article en page(s) : pp. 3022 - 3029 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Double-tag  changer  Interphase  reactor  (IPR)  Multipulse  rectifier  Optimum  turns  ratio Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, the optimum turns ratio of an interphase reactor (IPR) with a double-tap changer is presented with mathematical analysis. The relation between the total harmonic distortion (THD) of the input current and the turns ratio is introduced, and based on the relation, the optimum turns ratio when the THD is minimal is obtained. Via another relation between the ripple coefficients of the output voltage and the turns ratio, the optimum turns ratio is derived when the ripple coefficient is minimal. Meanwhile, using the optimum turns ratio, a new formula to calculate the critical value of IPR is written. Some computer simulation results and experiments are included to support the theoretical analysis of optimum design. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5371863 [article] Optimum design of interphase reactor with double-tap changer applied to multipulse diode rectifier [texte imprimé] / Shiyan, Yang, Auteur ; Fangang, Meng, Auteur ; Wei, Yang, Auteur . - 2011 . - pp. 3022 - 3029. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 9 (Septembre 2010) . - pp. 3022 - 3029 Mots-clés : Double-tag  changer  Interphase  reactor  (IPR)  Multipulse  rectifier  Optimum  turns  ratio Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, the optimum turns ratio of an interphase reactor (IPR) with a double-tap changer is presented with mathematical analysis. The relation between the total harmonic distortion (THD) of the input current and the turns ratio is introduced, and based on the relation, the optimum turns ratio when the THD is minimal is obtained. Via another relation between the ripple coefficients of the output voltage and the turns ratio, the optimum turns ratio is derived when the ripple coefficient is minimal. Meanwhile, using the optimum turns ratio, a new formula to calculate the critical value of IPR is written. Some computer simulation results and experiments are included to support the theoretical analysis of optimum design. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5371863

Study of propane dehydrogenation to propylene in an integrated fluidized bed reactor using Pt - Sn /Al - SAPO - 34 novel catalyst / Zeeshan Nawaz in Industrial & engineering chemistry research, Vol. 49 N° 10 (Mai 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 10 (Mai 2010) . - pp. 4614–4619 Titre : Study of propane dehydrogenation to propylene in an integrated fluidized bed reactor using Pt - Sn /Al - SAPO - 34 novel catalyst Type de document : texte imprimé Auteurs : Zeeshan Nawaz, Auteur ; Yue Chu, Auteur ; Wei, Yang, Auteur Année de publication : 2010 Article en page(s) : pp. 4614–4619 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Catalyst Résumé : Direct propane dehydrogenation is the most economical route to propylene, but very complex due to endothermic reaction requirements, equilibrium limitations, stereochemistry, and engineering constraints. The state of the art idea of bimodal particle (gas−solid−solid) fluidization was applied, in order to overcome alkane dehydrogenation reaction barriers in a fluidized bed technology. In this study, the propane dehydrogenation reaction was studied in an integrated fluidized bed reactor, using Pt-Sn/Al-SAPO-34 novel catalyst at 590 °C. The results of fixed bed microreactor and integrated bimodal particle fluidized bed reactors were compared and parametrically characterized. The results showed that the propylene selectivity is over 95%, with conversion between 31 and 24%. This significant enhancement is by using novel bimodal particle fluidization system, owing to uniform heat transfer throughout the reactor and transfer coke from principal catalyst to secondary catalyst, which increases principal catalyst’s stability. Experimental investigation reveals that the novel Pt-Sn/Al-SAPO-34 catalyst and proposed intensified design of fluidized bed reactor is a promising opportunity for direct propane dehydrogenation to propylene, with both economic and operational benefit. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie902043w [article] Study of propane dehydrogenation to propylene in an integrated fluidized bed reactor using Pt - Sn /Al - SAPO - 34 novel catalyst [texte imprimé] / Zeeshan Nawaz, Auteur ; Yue Chu, Auteur ; Wei, Yang, Auteur . - 2010 . - pp. 4614–4619. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 10 (Mai 2010) . - pp. 4614–4619 Mots-clés : Catalyst Résumé : Direct propane dehydrogenation is the most economical route to propylene, but very complex due to endothermic reaction requirements, equilibrium limitations, stereochemistry, and engineering constraints. The state of the art idea of bimodal particle (gas−solid−solid) fluidization was applied, in order to overcome alkane dehydrogenation reaction barriers in a fluidized bed technology. In this study, the propane dehydrogenation reaction was studied in an integrated fluidized bed reactor, using Pt-Sn/Al-SAPO-34 novel catalyst at 590 °C. The results of fixed bed microreactor and integrated bimodal particle fluidized bed reactors were compared and parametrically characterized. The results showed that the propylene selectivity is over 95%, with conversion between 31 and 24%. This significant enhancement is by using novel bimodal particle fluidization system, owing to uniform heat transfer throughout the reactor and transfer coke from principal catalyst to secondary catalyst, which increases principal catalyst’s stability. Experimental investigation reveals that the novel Pt-Sn/Al-SAPO-34 catalyst and proposed intensified design of fluidized bed reactor is a promising opportunity for direct propane dehydrogenation to propylene, with both economic and operational benefit. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie902043w

The impact of metal oxides on the combustion behavior of ethylene – vinyl acetate coploymers containing an intumenscent flame retardant / Lei Wang in Industrial & engineering chemistry research, Vol. 51 N° 23 (Juin 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 23 (Juin 2012) . - pp. 7884-7890 Titre : The impact of metal oxides on the combustion behavior of ethylene – vinyl acetate coploymers containing an intumenscent flame retardant Type de document : texte imprimé Auteurs : Lei Wang, Auteur ; Wei, Yang, Auteur ; Bibo Wang, Auteur Année de publication : 2012 Article en page(s) : pp. 7884-7890 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Flame  retardant  Combustion Résumé : The objective of this work was to compare the flame retardancy of intumescent flame retardant ethylene-vinyl acetate (EVA/IFR) composites containing different metal oxides including lanthanide oxide, iron oxide, the mixture of iron oxide and lanthanide oxide, and lanthanum ferrite nanocrystalline (LaFeO3). A novel compound containing iron and lanthanum, LaFeO3 was successfully prepared. The EVA/IFR composites with these different coadditives were then fabricated through a melt blending process. Thermogravimetric analysis data showed that these different coadditives could increase the char residue formation. Cone calorimeter results revealed that these different coadditives and IFR could dearly change the decomposition behavior of EVA and form a char layer on the surface of the composites, consequently resulting in efficient reduction of the flammability parameters, such as heat release rate, total heat release, average mass loss rate, average smoke extinction area, and so on. Moreover, significant improvements were obtained in limited oxygen index and Underwriters Laboratories 94 ratings. Among all of the samples, the fire risk of EVA/IFR/LaFeO3 system was the lowest. The residue characterization demonstrated that LaFeO3 could promote the formation of the homogeneous and compact intumescent char layer. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25990302 [article] The impact of metal oxides on the combustion behavior of ethylene – vinyl acetate coploymers containing an intumenscent flame retardant [texte imprimé] / Lei Wang, Auteur ; Wei, Yang, Auteur ; Bibo Wang, Auteur . - 2012 . - pp. 7884-7890. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 23 (Juin 2012) . - pp. 7884-7890 Mots-clés : Flame  retardant  Combustion Résumé : The objective of this work was to compare the flame retardancy of intumescent flame retardant ethylene-vinyl acetate (EVA/IFR) composites containing different metal oxides including lanthanide oxide, iron oxide, the mixture of iron oxide and lanthanide oxide, and lanthanum ferrite nanocrystalline (LaFeO3). A novel compound containing iron and lanthanum, LaFeO3 was successfully prepared. The EVA/IFR composites with these different coadditives were then fabricated through a melt blending process. Thermogravimetric analysis data showed that these different coadditives could increase the char residue formation. Cone calorimeter results revealed that these different coadditives and IFR could dearly change the decomposition behavior of EVA and form a char layer on the surface of the composites, consequently resulting in efficient reduction of the flammability parameters, such as heat release rate, total heat release, average mass loss rate, average smoke extinction area, and so on. Moreover, significant improvements were obtained in limited oxygen index and Underwriters Laboratories 94 ratings. Among all of the samples, the fire risk of EVA/IFR/LaFeO3 system was the lowest. The residue characterization demonstrated that LaFeO3 could promote the formation of the homogeneous and compact intumescent char layer. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25990302