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H. D. Kiehlmann
Siemens AG, Bereich Energieerzeugung KWU, Hammerbacherstrase 12+14, D-8520 Erlangen, Germany

J. Lorek
Siemens AG, Bereich Energieerzeugung KWU, Hammerbacherstrase 12+14, D-8520 Erlangen, Germany

J. Schulze
Siemens AG, Bereich Energieerzeugung KWU, Hammerbacherstrase 12+14, D-8520 Erlangen, Germany


In Siemens/KWU boiling water reactors the positioning of control rods for short-term reactivity changes is control led by predefined programmed control rod sequences. The sequence of control rod position changes depends and is based on the physical conditions of the core, e.g. core cycle state and fuel characteristics. The sequence is created by experts - partly intuitively. For this task an expert system (XPS) STEUFF is being developed. STEUFF is written in PROLOG, PC-based, has a complete mouse event driven graphical user surface and widely uses object oriented and knowledge based concepts. The first part, the creation of the order of the groups to be moved, is completed, a second part will create the sequence of the individual steps.
The main benefits of STEUFF are the formalization, the visualization and the objectivation of the complex technical correlations related to control rod sequences. With STEUFF the expert knowledge in this field is being conserved and prepared to be transferred to other engineers. In using the XPS the expert effort to create control rod sequences is reduced considerably.

ICHMT Digital Library

Bow shocks on a jet-like solid body shape. Thermal Sciences 2004, 2004. Pulsed, supersonic fuel jets - their characteristics and potential for improved diesel engine injection. PULSED, SUPERSONIC FUEL JETS - THEIR CHARACTERISTICS AND POTENTIAL FOR IMPROVED DIESEL ENGINE INJECTION
View of engine compartment components (left). Plots of temperature distributions in centreplane, forward of engine (right). CHT-04 - Advances in Computational Heat Transfer III, 2004. Devel... DEVELOPMENT AND CURRENT STATUS OF INDUSTRIAL THERMOFLUIDS CFD ANALYSIS
Pratt & Whitney's F-135 Joint Strike Fighter Engine under test in Florida is a 3600F class jet engine. TURBINE-09, 2009. Turbine airfoil leading edge stagnation aerodynamics and heat transfe... TURBINE AIRFOIL LEADING EDGE STAGNATION AERODYNAMICS AND HEAT TRANSFER - A REVIEW
Refractive index reconstructed field. (a) Second iteration. (b) Fourth iteration. Radiative Transfer - VI, 2010. Theoretical development for refractive index reconstruction from a radiative ... THEORETICAL DEVELOPMENT FOR REFRACTIVE INDEX RECONSTRUCTION FROM A RADIATIVE TRANSFER EQUATION-BASED ALGORITHM
Two inclusion test, four collimated sources. Radiative Transfer - VI, 2010. New developments in frequency domain optical tomography. Part II. Application with a L-BFGS associated to an inexa... NEW DEVELOPMENTS IN FREQUENCY DOMAIN OPTICAL TOMOGRAPHY. PART II. APPLICATION WITH A L-BFGS ASSOCIATED TO AN INEXACT LINE SEARCH