TY - JOUR AU - Végh, János AU - Pós, I AU - Horváth, Csaba AU - Kálya, Z AU - Parkó, T AU - Ignits, M TI - VERONA V6.22 – An enhanced reactor analysis tool applied for continuous core parameter monitoring at Paks NPP JF - NUCLEAR ENGINEERING AND DESIGN J2 - NUCL ENG DES VL - 292 PY - 2015 SP - 261 EP - 276 PG - 16 SN - 0029-5493 DO - 10.1016/j.nucengdes:2015.06.006 UR - https://m2.mtmt.hu/api/publication/2935843 ID - 2935843 LA - English DB - MTMT ER - TY - JOUR AU - Lipcsei, Sándor AU - Végh, János AU - Kiss, Sándor TI - REACTOR AND SIGNAL NOISE ANALYSIS JF - IAEA NUCLEAR ENERGY SERIES J2 - IAEA NUCLEAR ENERGY SERIES VL - D-NP-T-3.14 PY - 2013 SP - 6 EP - 32 PG - 27 SN - 978920140510 SN - 1995-7807 UR - https://m2.mtmt.hu/api/publication/1871109 ID - 1871109 LA - English DB - MTMT ER - TY - CONF AU - Kiss, Sándor AU - Lipcsei, Sándor AU - Végh, János TI - Reactor noise diagnostics activities at Paks NPP T2 - 21st International Conference Nuclear Energy for New Europe PY - 2012 PG - 11 UR - https://m2.mtmt.hu/api/publication/2602222 ID - 2602222 LA - English DB - MTMT ER - TY - CONF AU - Végh, János AU - Kiss, Sándor AU - Lipcsei, Sándor AU - Czibók, Tamás AU - Horváth, Csaba AU - Dezső, Zoltán AU - Láz, József AU - Kirnizs, Károly ED - Anon, null TI - Long term reactor noise monitoring practice at Paks nuclear power plant T2 - Reactor Noise. PY - 2012 PG - 15 UR - https://m2.mtmt.hu/api/publication/2602216 ID - 2602216 LA - English DB - MTMT ER - TY - CONF AU - Major, Csaba AU - Horváth, Cs AU - Nyrén, A AU - Demeter, K AU - Végh, János TI - Reconstruction of the control room for the Plant Control Centre at Paks NPP T2 - Proceedings of the Enlarged Halden Programme Group Meeting PY - 2011 SP - 62 UR - https://m2.mtmt.hu/api/publication/1871127 ID - 1871127 LA - English DB - MTMT ER - TY - JOUR AU - Kiss, Sándor AU - Lipcsei, Sándor AU - Végh, János TI - Development and overall testing of the traditional MTC estimation based on noise diagnostics at all four units of the Paks NPP JF - NUCLEAR ENGINEERING AND DESIGN J2 - NUCL ENG DES VL - 241 PY - 2011 IS - 8 SP - 2933 EP - 2941 PG - 9 SN - 0029-5493 DO - 10.1016/j.nucengdes.2011.06.018 UR - https://m2.mtmt.hu/api/publication/1871094 ID - 1871094 AB - Moderator Temperature Coefficient (MTC) of reactivity is an important parameter of nuclear reactors and its value should be in a specific range during the reactor operation. Determining MTC with traditional methods is performed through deviating the reactor state from the normal operation. Noise diagnostics has the potential to provide an MTC estimation method during normal operation without changing the reactor state. This paper overviews the developments made on the traditional noise based estimators and the steps of their application in VVER-440 type reactors. Modifications were made to consider the effect of propagating perturbations through geometry and coolant velocity and to compensate the frequency response of the slow thermocouples. Frequency dependence of H(1) was calculated in high resolution which involved the revision of the method applied for reading the MTC value earlier (see the details in Kiss et al., 2010a,b). Investigations were performed at all four units of the Paks NPP to verify the dependence of the results on specific core features (e.g. on core loading patterns) and instrumentation of the individual units. For a better comparison of the results, a common frequency range of the evaluation was chosen for all units, thus this range was made narrower and its weight went closer to the frequency range affected by power feedback. Absolute values of the estimated MTC are smaller than the reference value due to the effect of feedback and low coherence. During the investigated fuel cycles estimations were quite close to the reference for two units (the deviation was around 10%), while the agreement was only moderate for the other two units (here the deviation was around 40%). (C) 2011 Elsevier B.V. All rights reserved. LA - English DB - MTMT ER - TY - CHAP AU - Jánosy, János Sebestyén AU - Keresztúri, András AU - Házi, Gábor AU - Páles, József AU - Végh, János ED - Lencse, Gábor ED - Muka, László TI - Spatial Power Distribution Simulation For Nuclear Reactor T2 - 8TH INTERNATIONAL INDUSTRIAL SIMULATION CONFERENCE 2010, ISC 2010 PB - European Multidisciplinary Society for Modelling and Simulation Technology (EUROSIS) CY - Gent SN - 9789077381557 PY - 2010 SP - 239 EP - 244 PG - 6 UR - https://m2.mtmt.hu/api/publication/1430946 ID - 1430946 LA - English DB - MTMT ER - TY - JOUR AU - Házi, Gábor AU - Páles, József AU - Jánosy, János Sebestyén AU - Végh, János TI - A paksi teljesléptékű szimulátor kétfázisú modelljének lecserélése JF - NUKLEON J2 - NUKLEON VL - 3 PY - 2010 IS - 2 PG - 4 SN - 1789-9613 UR - https://m2.mtmt.hu/api/publication/1430903 ID - 1430903 LA - Hungarian DB - MTMT ER - TY - GEN ED - Major, Cs ED - Túri, T ED - Végh, János ED - Házi, Gábor TI - Plans for the Application of Simulators to Support the Paks NPP I&C Modernization PY - 2010 UR - https://m2.mtmt.hu/api/publication/1430616 ID - 1430616 N1 - [Előadás] LA - English DB - MTMT ER - TY - JOUR AU - Kiss, Sándor AU - Lipcsei, Sándor AU - Végh, János TI - Monitoring MTC using cold leg thermocouple and background neutron detector noise signals in a VVER-440 reactor during a whole fuel cycle JF - ANNALS OF NUCLEAR ENERGY J2 - ANN NUCL ENERGY VL - 37 PY - 2010 SP - 827 EP - 834 PG - 8 SN - 0306-4549 DO - 10.1016/j.anucene.2010.02.017 UR - https://m2.mtmt.hu/api/publication/1430600 ID - 1430600 LA - English DB - MTMT ER -