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Browsing Fakultät für Maschinenbau by Issue Date

Browsing Fakultät für Maschinenbau by Issue Date

Now showing items 1-20 of 1767

Zur aerodynamischen Berechnung eines Windenergiekonverters am Beispiel des Wagner-Rotors

Lindemann, Dieter (Hannover : Institut für Mechanik, Universität Hannover, 1985)

Zweck - Dieser Bericht zeigt die aerodynamische Berechnung eines Windrades mit einer Geometrie, die allgemeiner definiert ist, als üblich. So ein Windrad ist auch als Wagner-Rotor bekannt und zeigt einem Achswinkel ...
Übertragbarkeit von Meßwerten aus Versuchen an Windrädern im Hinblick auf Windkanalversuche am Wagner-Rotor : Konstruktion einer Sechs-Komponenten-Waage für Windkanalmessungen an Windrädern

Lindemann, Dieter (Hannover : Institut für Mechanik, Universität Hannover, 1985)

Eine Aussage über das Verhalten eines geplanten Windrades kann auf drei prinzipiell unterschiedlichen Wegen erhalten werden: 1.) rein theoretische Berechnungen, 2.) Versuche im Windkanal, 3.) Untersuchung bereits gebauter ...
The Influence of Different Geometries for a Vaned Diffuser on the Pressure Distribution in a Centrifugal Compressor

Teipel, Ingolf; Wiedermann, Alexander (Leiden : Martinus Nijhoff Publishers, 1985)

In this paper the transonic flow field in a vaned diffuser of a centrifugal compressor has been studied. Different geometries of the diffuser blades have been considered. Particularly with respect to the pressure field it ...
Experimental and Theoretical Studies on Design Calculations for Latent Heat Storage

Lindemann, Dieter (West Lafayette, Indiana, USA : School of Mechanical Engineering, Purdue University, 1987)

Research was conducted to obtain design data of latent heat-of-fusion thermal energy storage (LHTES) devices. The devices studied utilize a porous medium (PM) to increase the effective conductivity of the storage system. ...
Blade Vibration on Centrifugal Compressors - Fundamental Considerations and Initial Measurements

Haupt, U.; Bammert, K.; Rautenberg, M. (Berlin : De Gruyter, 1987)

Blade vibration has to be considered in the design of high pressure ratio / high mass flow centrifugal compressors with increasing rotational speed values due to the reduced blade thickness. Results of a theoretical and ...
Flow Measurements in Two Cambered Vane Diffusers with Different Passage Widths

Stein, W.; Rautenberg, M. (Berlin : De Gruyter, 1987)

To investigate the influence of the vaneless space between impeller exit and the diffuser vanes, detailed flow measurements in two diffusers with the same vane geometry but different passage width are compared. The ...
Blade Vibration on Centrifugal Compressors — Blade Response to Different Excitation Conditions

Haupt, U.; Bammert, K.; Rautenberg, M. (Berlin : De Gruyter, 1987)

Results and analysis of blade vibration measurements on a high pressure ratio/high mass flow centrifugal compressor made with strain gages and using multichannel telemetry are described for compressors with 3 different ...
Berechnung der reibungsfreien Strömung in Rotoren von Windkraftanlagen

Lindemann, Dieter (Hannover : Institut für Mechanik, Universität Hannover, 1988)

Zweck - Die Strömung im Windrad soll mit einem Computerprogrammen berechnet werden, das auf der Potentialtheorie beruht. Vorteil ist, daß dabei lediglich die geometrischen Daten des Windrades als Eingabeparameter erforderlich ...
Design and Testing of a 10KW Steam Turbine for Steam Turbochargers

Rautenberg, M.; Malobabic, M.; Mobarak, A.; Kader, M.A. (Berlin : De Gruyter, 1988)

A Clausius-Rankine-cycle has been proposed to recover waste heat from a piston engine. This waste heat is then used to supercharge the cylinders by means of a steam turbocharger. The advantage of using this steam turbocharger ...
Theoretical Investigation of the Interaction Between a Compressor and the Components During Surge

Brumm, Jürgen; Kalac, Hassan; Teipel, Ingolf (Berlin : De Gruyter, 1990)

Problems of compressor instability have been of concern not only to aircraft engine designers but also for example to operators of industrial power plants. Two types of flow instabilities are known and in this paper only ...
Similarity Considerations on Wall Heat Losses in Internal Combustion Engines

Eilts, P. (London : SAGE Publications Ltd., 1991)

The drop in wall heat losses with increasing engine size is shown not to be due to the decreasing surface-volume ratio, because this influence is compensated by the engine speed, which also drops. Instead, the heat-transfer ...
Effects of Turning Forging Steels Which Lead to Discontinuous Cutting Conditions

Tönshoff, H.K.; Kaestner, W. (London : SAGE Publications Ltd., 1991)

An important component of the total production costs of forged parts are the costs for finish turning. During the last few years near-net - shape technology has been advanced, so that the realizable accuracy by chipless ...
Rayleigh-Taylor Instability of a Compressible Plasma with Finite Larmor Radius Effects

Ariel, P.D. (Berlin : De Gruyter, 1993)

The Rayleigh-Taylor instability of a compressible plasma in the presence of a horizontal magnetic field is investigated, taking into account the effects of finite Larmor radius. Only transverse perturbations are considered. ...
Off-design flow analysis of low-pressure steam turbines

Petrovic, M.; Riess, W. (London : SAGE Publications Ltd., 1997)

In this paper, a method for flow calculation in large steam turbines is presented. The method is based on the through-flow theory and the finite element procedure. It includes some extensions and improvements in the form ...
Description of the contract between a deterministic anisotropic tool surface and a workpiece subjected to plastic deformation

Rotarescu, M.-I. (London : SAGE Publications Ltd., 1998)

The finite element method offers an opportunity to obtain important information by simulating metal-forming processes. The description of the tool-workpiece interaction still remains a critical issue. The aim of this paper ...
Konstruktionsbegleitende Modellierung von Schmiedeprozessen

Michael, Matthias (Hannover : Universität, 1999)

[no abstract]
Simulation des instationären Betriebsverhaltens hochaufgeladener Vier- und Zweitakt-Dieselmotoren

Gerstle, Michael (Hannover : Universität, 1999)

[no abstract]
Untersuchungen zum Umformen von Feinblechen aus Magnesiumknetlegierungen

Dröder, Klaus Georg (Hannover : Universität Hannover, 1999)

[no abstract]
Reduzierung instationärer Betriebszustände beim Gesenkschmieden

Dohmann, Jürgen (Hannover : Universität, 1999)

[no abstract]
Untersuchung instationärer Strömungsvorgänge in hochbelasteten Radialverdichtern

Shi, Lixin (Hannover : Universität, 1999)

[no abstract]

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