TY  - CHAP
A1  - Kern, Alexander
A1  - Dikta, Gerhard
T1  - Probability of damage of electrical and electronic systems due to indirect lightning flashes - investigation of data from German insurance companies
N2  - In the presented paper data collected from the field related to damage statistics of electrical and electronic apparatus in household are reported and investigated. These damages (total number approx. 74000 cases), registered by five German insurance companies in 2005 and 2006, were adviced by customers as caused by lightning overvoltages. With the use of stochastical methods it is possible, to reasses the collected data and to distinguish between cases, which are with high probability caused by lightning overvoltages, and those, which are not. If there was an indication for a direct strike, this case was excluded, so the focus was only on indirect lightning flashes, i.e. only flashes to ground near the structure and flashes to or nearby an incoming service line were investigated. The data from the field contain the location of damaged apparatus (residence of the policy holder) and the distances of the nearest cloud-to-ground stroke to the location of the damage registered by the German lightning location network BLIDS at the date of damage. The statistical data along with some complementary numerical simulations allow to verify the correspondence of the Standards rules used for IEC 62305-2 with the field data and to define some correction needs. The results could lead to a better understanding whether a damage reported to an insurance company is really caused by indirect lightning, or not.
KW  - Blitzschutz
KW  - lightning flash
Y1  - 2009
ER  - 
TY  - CHAP
A1  - Butenweg, Christoph
A1  - Rosin, Julia
A1  - Kubalski, Thomas
T1  - Seismic response of conventional and base-isolated liquid storage tanks
T2  - International Conference on Earthquake Engineering : 29.-31.05.2013, Skopje, Mazedonien
Y1  - 2013
SP  - 1
EP  - 8
ER  - 
TY  - CHAP
A1  - Renault, Philippe
A1  - Butenweg, Christoph
T1  - Seismic vulnerability assessment of bridges
T2  - First Munich Bridge Assessment Conference, MBAC 2005 : Munich, 20.-25. June 2005
Y1  - 2005
SP  - 1
EP  - 16
ER  - 
TY  - CHAP
A1  - Butenweg, Christoph
A1  - Kuhlmann, Winfried
A1  - Lopez, M.
A1  - Fernandez, S.
T1  - Seismic vulnerability assessment of the Aachen Cathedral based on measurements and numerical simulations
T2  - International Conference on Earthquake Engineering to mark 40 years from Catastrophic 1963 Skopje Earthquake, Skopje 2003
Y1  - 2003
SP  - 1
EP  - 8
ER  - 
TY  - CHAP
A1  - Butenweg, Christoph
A1  - Kleemann, Anne
A1  - Altay, Okyay
A1  - Renault, Philippe
T1  - Simulation of impact-loads on reinforced concrete structural elements
T2  - 22nd International Conference on Structural Mechanics in Reactor Technology 2013 : (SMiRT 22) ; San Francisco, California, USA, 18 - 23 August 2013
Y1  - 2013
SP  - 1
EP  - 10
ER  - 
TY  - CHAP
A1  - Chudoba, Rostislav
A1  - Butenweg, Christoph
A1  - Kuhlmann, Wolfram
T1  - Technical information system for collaborative material research
T2  - Sixth International Conference on Computational Structures Technology : [Prague, Czech Republic, 4 - 6 September 2002]
Y1  - 2002
SP  - 1
EP  - 11
ER  - 
TY  - CHAP
A1  - Brüssermann, Klaus
A1  - Deuster, M.
T1  - Temperature measurement to optimise the burning process
N2  - One of the most important parameters in a burning chamber - in power stations, in waste to energy plants - is the temperature. This temperature is in the range of 700-1500 °C - one of the most advanced measuring methods being the acoustic pyrometry with the possibility of producing temperature mapping in one level of the burning chamber - comparable to computer tomography. The results of these measurements discussed in the presentation can be used - to fulfil the legal requirements in the FRG or in the EU - to equalise the temperature in one level of the burning chamber to optimise the steam production (better efficiency of the plant) and to minimise the production of temperature controlled flue gas components (NO, CO a. o.) - to control the SNCR-process if used.
KW  - Pyrometrie
KW  - Temperaturmessung
KW  - temperature measurement
KW  - acoustic pyrometry
KW  - steam production
KW  - flue gas components
Y1  - 2005
ER  -