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Analysis and Numerical Simulation of Forced Cooling in Induction Coils With High Current Density

Journal of Iron and Steel Research International 2012年第S2期19卷 758-761页

作者： BRESSAN Fernando FORZAN Michele lupi sergio NIKANOROV Aleksandr NACKE Bernard University of Padua Department of Electrical Engineering Institute of Electrotechnology Leibniz Universitat Hannover

A static model of the forced cooling of inductors used for induction heating is proposed in order to achieve better coil design to prolong its lifetime and prevent *** main aim is to define for the most common copper tubes and inductor geometries an equivalent convection heat transmission coefficient depending upon temperature and pressure of the cooling fluid,in order to model the very complex physics of forced cooling with a strongly simplified *** model,called 'Line Region Model',considers only the coil's copper tube and its internal surface(interface copper-water)as boundary where the heat exchange conditions are imposed.

关键词： coefficient of heat transfer by convection forced cooling of inductor high current density

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Analysis and Numerical Simulation of Forced Cooling in Induction Coils With High Current Density

Analysis and Numerical Simulation of Forced Cooling in Induc...

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第七届冶金与材料电磁过程国际会议（EPM2012）

A static model of the forced cooling of inductors used for induction heating is proposed in order to achieve better coil design to prolong its lifetime and prevent *** main aim is to define for the most common copper tubes and inductor geometries an equivalent convection heat transmission coefficient depending upon temperature and pressure of the cooling fluid,in order to model the very complex physics of forced cooling with a strongly simplified *** model,called "Line Region Model",considers only the coil’s copper tube and its internal surface（interface copper-water） as boundary where the heat exchange conditions are imposed.

关键词： coefficient of heat transfer by convection forced cooling of inductor high current density

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Primary reperfusion in acute right ventricular infarction: An observational study

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World Journal of Cardiology 2014年第1期6卷 14-22页

作者： Eulo lupi-Herrera Héctor González-Pacheco úrsulo Juárez-Herrera Nilda Espinola-Zavaleta Eduardo Chuquiure-Valenzuela Ramón Villavicencio-Fernández Marco Antonio Pea-Duque Ernesto Ban-Hayashi sergio Férez-Santander The American British Cowdray Medical Center I.A.P. Chuquiure-Valenzuela Coronary Care UnitNational Institute of Cardiology Ignacio Chavez Marco Antonio Pea-Duque Ernesto Ban-HayashiEchocar- diography and Interventional Cardiology DepartmentsNational Institute of Cardiology Ignacio Chavez Coronary Care Unit National Institute of Cardiology Ignacio Chavez Echocar- diography and Interventional Cardiology Departments National Institute of Cardiology Ignacio Chavez Subdivisions of Clinical-Research and Teaching National Institute of Cardiology Ignacio Chavez

AIM: To investigate the impact of primary reperfusion therapy(RT) on early and late mortality in acute right ventricular infarction(RVI). METHODS: RVI patients(n = 679) were prospectivelyclassified as without right ventricular failure(RVF)(class A, n = 425, 64%), with RVF(class B, n = 158, 24%) or with cardiogenic shock(CS)(class C, n = 96, 12%). Of the 679 patients, 148(21.7%) were considered to be eligible for thrombolytic therapy(TT) and 351(51.6%) for primary percutaneous coronary intervention(PPCI). TIMI 3-flow by TT was achieved for A, B and C RVI class in 65%, 64% and 0%, respectively and with PPCI in 93%, 91% and 87%, respectively. RESULTS: For class A without RT, the mortality rate was 7.9%, with TT was reduced to 4.4%(P < 0.01) and with PPCI to 3.2%(P < 0.01). Considering TT vs PPCI, PPCI was superior(P < 0.05). For class B without RT the mortality was 27%, decreased to 13% with TT(P < 0.01) and to 8.3% with PPCI(P < 0.01). In a TT and PPCI comparison, PPCI was superior(P < 0.01). For class C without RT the in-hospital mortality was 80%, with TT was 100% and with PPCI, the rate decreased to 44%(P < 0.01). At 8 years, the mortality rate without RT for class A was 32%, for class B was 48% and for class C was 85%. When PPCI was successful, the longterm mortality was lower than previously reported for the 3 RVI classes(A: 21%, B: 38%, C: 70%; P < 0.001). CONCLUSION: PPCI is superior to TT and reduces short/long-term mortality for all RVI categories. RVI CS patients should be encouraged to undergo PPCI at a specialized center.

关键词： Right ventricular infarction Reperfusion therapy Ventricular failure Cardiogenic shock Morbidity Mortality

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