Search Results - "Hamberger, P."

Heat and Mass Transfer during Condensation of Fast Pyrolysis Vapors by Ille, Y., Hamberger, P., Dahmen, N., Schaber, K.

Get full text

Field experience of small quasi-DC bias on power transformers: A first classification of low-frequency current patterns and identification of sources by Albert, D., Schachinger, P., Renner, H., Hamberger, P., Klammer, F., Achleitner, G.

“…Low-frequency currents (LFC) or quasi-DC (QDC) in the electrical power transmission network, and especially in power transformers, are causing negative effects…”
Get full text

A scalable parallel Stokesian Dynamics method for the simulation of colloidal suspensions by Bülow, F., Hamberger, P., Nirschl, H., Dörfler, W.

“…We have developed a new method for the efficient numerical simulation of colloidal suspensions. This method is designed and especially well-suited for parallel…”
Get full text

Analysis of strain and mosaicity in a short-period Si9Ge6 superlattice by x-ray diffraction by Koppensteiner, E., Hamberger, P., Bauer, G., Holy, V., Kasper, E.

“…Triple axis x-ray diffractometry was employed for the structural characterization of a 100 period Si9Ge6 superlattice grown by molecular beam epitaxy on a…”
Get full text

Measurement of thermal behavior of an ester-filled power transformer at ultra-low temperatures by Bachinger, Florian, Hamberger, Peter

“…At arctic ambient temperatures, the viscosity of cooling fluids for power transformers reaches extreme levels. This leads to a change of fluid flow and cooling…”
Get full text

X-ray diffraction investigation of single step and step-graded SiGe alloy buffers for the growth of short-period SimGen superlattices using reciprocal space mapping by KOPPENSTEINER, E, HAMBERGER, P, BAUER, G, PESEK, A, KIBBEL, H, PRESTING, H, KASPER, E

Get full text

A parallel implementation of the Stokesian Dynamics method applied to the simulation of colloidal suspensions by Bülow, F., Hamberger, P., Nirschl, H., Dörfler, W.

“…•A parallel implementation of the Stokesian Dynamics method is presented.•The complexity of the method now depends not only on the number of particles.•The…”
Get full text

Finite element calculation of eddy current losses in the tank wall of power transformers by Schmidt, E., Hamberger, P., Seitlinger, W.

“…To maintain quality, performance and competiveness, the finite element method is increasingly utilized not only for the verification of contractual values of…”
Get full text

Design optimization of power transformers. Part 2. Eddy current analyses for tank wall and core clamping parts by Schmidt, E., Hamberger, P.

“…For pt.1 see ibid., p.1365-1370, (2004). To maintain quality, performance and competiveness, finite element analyses are increasingly utilized for the initial…”
Get full text

Direct current in transformers: effects and compensation by Bachinger, F., Hackl, A., Hamberger, P., Leikermoser, A., Leber, G., Passath, H., Stoessl, M.

Get full text

Design optimization of power transformers. Part 1. Sensitivity analyses for winding insulation and support by Schmidt, E., Hamberger, P.

“…To maintain quality, performance and competiveness, finite element analyses are increasingly utilized for the initial design, the design review and the design…”
Get full text

Nested multigrid finite element analyses of eddy current losses in power transformers by Schmidt, E., Schoberl, J., Hamberger, P.

“…The distribution of eddy currents in the core clamping parts and the tank wall of power transformers is obviously different between measurements of load losses…”
Get full text

Calculation of eddy current losses in metal parts of power transformers by Schmidt, Erich, Hamberger, Peter, Seitlinger, Walter

“…To maintain quality, performance and competitiveness, the eddy current losses in metal parts of power transformers in the range of 50-200 MVA are investigated…”
Get full text

Predict the rupture of transformer tanks with static FEM analysis by Hackl, A., Hamberger, P.

“…Electrical errors inside the transformer may lead to an arc discharge with high energy peaks. These causes pressure shock waves which break the tank open and…”
Get full text

Eigenfunction expansion of the stray field of large power transformers by Schmidt, E., Strobach, M., Hamberger, P.

“…The paper presents an analytic method for the stray field calculation of the windings of large power transformers which takes into account for the detailed…”
Get full text

Investigation of surface velocity pattern of power transformers tanks by Hackl, A, Hamberger, P

“…It is common knowledge, that the surface velocity pattern of power transformers tanks and therefore the sound pressure level (SPL) are very sensitive to…”
Get full text

Inrush behaviour of a plunger core reactor with parallel winding paths obtained from field-circuit coupled finite element analyses by Schmidt, E., Hamberger, P.

“…The inrush operational behaviour of a plunger core reactor with four parallel connected winding paths is calculated from voltage driven finite element…”
Get full text

X-ray diffraction investigation of single step and step-graded SiGe alloy buffers for the growth of short-period Si m Ge n superlattices using reciprocal space mapping by Koppensteiner, E., Hamberger, P., Bauer, G., Pesek, A., Kibbel, H., Presting, H., Kasper, E.

“…Double crystal and triple axis x-ray diffractometry was used to characterize the structural properties of short period Si6Ge4 superlattices grown by molecular…”
Get full text

Sensitivity Analysis for Winding Support and Insulation of Power Transformers by Schmidt, E., Hamberger, P.

“…Short-term customer deadlines, ambitious technical specifications and individual customer demands require high levels of precision and reliability of…”
Get full text

Analytical approach for the calculation of the stray field of large power transformers by Schmidt, E., Strobach, M., Hamberger, P.

“…The paper discusses a novel analytic method for determining the stray field of the windings of large power transformers. Taking into account the detailed…”
Get full text