384 Result(s)
within
Energy
Energy Systems
B **
Chapter
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Chapter
Das elektrische Licht
Die als elektrischer Lichtbogen bekannte Entladungserscheinung wurde wahrscheinlich im Jahre 1808 von Davy zuerst beobachtet und praktisch auszunutzen versucht.
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Chapter
Aufgabenstellung
Im Jahre 1948 wurde von den verschiedensten Stellen die Frage geprüft, ob die stilliegende Schwelanlage des Krupp’schen Treibstoffwerkes in WanneEickel wieder in Betrieb genommen werden könne und auf welche We...
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Chapter
Versuchsanlage auf der Zeche Hannover
In der Abbildung 14 ist das Fließbild der Convertolanlage der genannten Zeche dargestellt. Die Feinschlämme werden in der Kohlenwäsche auf übliche Weise durch Federsiebe bei 0,5 mm abgesiebt. Der Durchgang dur...
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Chapter
Entwicklung des Phasenumkehr-Verfahrens (Convertol-Verfahren)
Deshalb beschloß man bei Inangriffnahme des Problems auf der hiesigen Versuchsanlage, ganz andere Wege einzuschlagen. Man ging von den Erfahrungen aus, die die Z.G. während des Krieges bei der Verarbeitung nam...
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Chapter and Conference Paper
Feeding Large Heat Pumps from Sewage Water Treatment Plants
A number of large heat pump stations for district heating have recently been built in Sweden. Treated sewage water has been used as major low temperature energy source. Lake and sea water have also been used s...
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Chapter
Fuel Dispersion in Supersonic Airstreams
The work is concerned with the problems of achieving good fuel air mixing in supersonic combustion chambers within distances which minimize the frictional losses, and a number of the issues concerning the inje...
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Chapter
Studies on Detonation Driven Hollow Projectiles
This study explores the concept of a detonation driven projectile by performing CFD computations for a simple hollow projectile propelled in a pre-mixed detonable mixture. The particular projectile selected fo...
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Chapter
Finite-Rate Chemistry Effects in Subsonic and Supersonic Combustion
Finite-rate chemistry effects are revealed in subsonic and supersonic lifted hydrogen flames using narrowband KrF excimer laser (248 nm) induced Raman scattering and fluorescence to measure simultaneously spec...
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Chapter
Recent Advances in Ram Accelerator Technology
Recent advances in ram accelerator technology are presented in this paper. The ram accelerator is an in-bore propulsion system in which a projectile shaped like the centerbody of a supersonic ramjet is acceler...
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Chapter
Weakly Nonlinear Dynamics of Near-CJ Detonation Waves
The renewed interest in safety issues for both large scale industrial devices and in high speed combustion has driven recent intense efforts to gain a deeper theoretical understanding of detonation wave dynami...
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Chapter and Conference Paper
Sine-Cosine Polynomial Systems
Frequently, in the design and analysis of robotic mechanisms, sets of nonlinear equations appear and must be solved. The nonlinearities often arise due to the kinematic couplings between members, which lead to...
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Chapter
Cycle-Resolved Two-Dimensional Laser-Induced Fluorescence Measurements of Fuel/Air Ratio Correlated to Early Combustion in a Spark-Ignition Engine
Planar Laser-Induced Fluorescence is used for two-dimensional visualization of the fuel concentration field near the spark gap prior to ignition in a spark-ignition engine. Special care has been taken to make ...
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Chapter
Pulse Combustion Applications: Past, Present and Future
This paper presents an introduction to pulse combustion and a discussion of its past, present and future applications. The types and principles of operation of pulse combustors are discussed. A linear theoreti...
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Chapter and Conference Paper
Formal Verification in Robotics: Why and How?
A mobile robot aimed to operate in an hazardous environment is a typical example of critical system. We mean here that, for such a system, like for a satellite, any repairing or recovery operation, even a miss...
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Chapter and Conference Paper
Analysis of 3D Conjugate Heat Transfer in Electronic Boards: Interaction Between Three Integrated Circuits
A numerical study is performed by a multigrid technique, to simulate the combined heat transfer conduction/laminar convection in a three-dimensional channel, with three protruding heated integrated circuits (I...
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Chapter and Conference Paper
Thermal and Mechanical Characterization of Electronic Packages in Extremely High Frequency Applications by Means of Finite Element Analysis
The determination of possible failure mechanisms and advance in reliability are essential aims in modern micro electronics. Thermal and mechanical strength cannot be avoided in technological processes and unde...
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Chapter and Conference Paper
Electrothermal Simulation of Analogue Integrated Circuits With Ets
Nowadays, high-power devices are integrated together with complex digital and high performance analogue circuits on the same chip. Inappropriate design and/or layout cause major problems with maximum temperatu...
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Chapter and Conference Paper
Flow Boiling and Film Condensation Heat Transfer in Narrow Channels of Thermosiphons for Cooling of Electronic Components
A closed loop, two-phase thermosiphon system is an efficient method for dissipating high heat fluxes from a hot spot to a secondary coolant with a small temperature drop. At KTH in Stockholm, several prototype...
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Chapter and Conference Paper
The Numerical Modelling of Heat Transfer in Electronic Systems : Challenges and Ideas of Answer
For the past 25 years, there has been an ever increasing interest for computerized I analysis, and it would be difficult today to find a field in which searchers or engineers do not make profit of computer cod...
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Chapter and Conference Paper
Calculations of The Temperature Distribution Throughout Electronic Equipments by The Boundary Element Method with the REBECA-3D Software
In order to allow accurate calculations of the temperature distribution throughout electtonic packages, the REBECA-3D Software, based on the Boundary Element Method, has been developed. The principles of this ...
