Validation of coupled neutronic / thermal-hydraulic codes for VVER reactors Final report
...
Germany
A comparative study of overlap and staggered fermions in QCD
Germany
Theoretical and experimental investigations of an added firing system in cogeneration processes with gas turbines optimi...
The effects of the key flow, mixing and ignition parameters on the ignition process was investigated in near-practical conditions. It was found that the ignition energy can be minimized by careful selection of the electrode configuration and positioning near the burner. Further, a criterion was developed for developing characteristic fields and des...
A comparative study of overlap and staggered fermions in the Schwinger model
We investigate the validity of the square rooting procedure of the staggered determinant in the context of the Schwinger model. We find some evidence that at fixed physical quark mass the square root of the staggered determinant becomes proportional to the overlap determinant in the continuum limit. We also find that at fixed lattice spacing modera...
In-core and out-of-core materials selection for the HPLWR
In this report a state-of-the-art study was performed to investigate the operational conditions for in-core and ex-vessel materials in a future High Performance Light Water Reactor (HPLWR) and to evaluate the potential of existing structural materials for application in fuel elements, core structures and out-of-core components. In the conventional ...
Analytische Unterstuetzung fuer das B_4C Kontrollstab-Experiment QUENCH-07
Germany
Crack lengths calculation by the unloading compliance technique for Charpy size specimens
The problems with the crack length determination by the unloading compliance method are well known for Charpy size specimens. The final crack lengths calculated for bent specimens do not fulfil ASTM 1820 accuracy requirements. Therefore some investigations have been performed to resolve this problem. In those studies it was considered that the meas...
Development and comparison of membrane methods for improving the performance of municipal waster water purification by c...
The goal of the present project was to develop a membrane-based activation method, optimise it on an experimental plant and operate this plant alongside a conventional municipal water treatment plant over a one-year period. An important part of the project consisted in making a technical comparison between conventional water purification and the me...
Comparative studies on the influence of high-performance electron beam welding on the metallurgical properties of alumin...
Specifications were investigated for high-energy Nd-YAG laser welding and atmospheric electron beam welding of Al and Mg alloys. The influence of the high welding speed of 10 m/min and more on the material structure, segregation and mechanical and technological characteristics of the welds was gone into. The investigations were carried out on comme...
Zusammensetzung von Ottokraftstoffen aus deutschen Raffinerien - Winterware 2001/2002
Germany
