19,819 research outputs found
Obbligazioni - Bilancio
No full textvolume del "Commentario alla riforma delle società", diretto da P. Marchetti, L.A. Bianchi, F. Ghezzi e M. Notar
Francia: la regolazione del lavoro in "frantumi"
No full textLe trasformazioni del lavoro in Francia: destabilizzazione della regolazione, nuove strategie imprenditoriali, il ruolo dello Stato e delle politiche pubbliche per l'occupazione. Le forme di lavoro atipiche e i loro effett
IN-POOL ENERGY REMOVAL SYSTEM FOR EMERGENCY OPERATION: EXPERIMENTAL TESTS AND RELAP5 CODE
No full textThis paper, identified as ICONE 11 - 36356, was presented to the 11th International Conference on Nuclear Engineering Tokyo, Japan, April 20-23,2003
In-Pool Energy Removal System for Emergency Operation: Experiment and Analytical Assessment
No full textIn the framework of a domestic research program on innovative safety systems, ENEA has developed a device, so-called PERSEO, aimed at increasing the reliability of Residual Heat Removal Systems that implement in-pool heat exchangers. This device is suitable to transfer power from the primary side to the pool without the installation of valves on the pressurized loop, thus reducing thermal-mechanical constraints and thermal-hydraulic instabilities. The experiments have been performed at SIET Thermal-hydraulic Research Centre by modifying the existing PANTHERS IC-PCC facility and RELAP5/mod 3.2 and 3.3 beta releases have been run to perform the pre and post-test analyses respectively. The pre-test calculations provided a quantitative representation of the device behaviour and gave interesting indications on the procedures to be adopted for the experiments. The post-test calculations have been compared with the experimental data addressing particular attention to the simulation of three-dimensional effects of water circulation in both the HX and Overall Pool and have confirmed the RELAP5 code capability to fit the experimental data. The paper deals with the activity performed up to now
The REPAS approach to the evaluation of passive safety systems reliability
No full textThis paper was presented to the Passive PSA Workshop, that was held in Cadarache (France) on March 4-6th 2002 under the auspices of the OECD-NEA CSNI Working Group on Risk (WGRISK)
NATURAL CIRCULATION OF LEAD-BISMUTH IN A ONE-DIMENSIONAL LOOP: EXPERIMENTS AND CODE PREDICTIONS
No full textThis paper was presented to the 10th International Conference on Nuclear Engineering, that was held in Arlington (USA) on April 14-18th 2002
PERSEO project: experimental facility set-up and RELAP5 code calculations
No full textThis paper was presented to the 2nd EMSI and 40th European Two-phase Flow Group Meetings, that were held in Stockholm (Sweden) on June IO-13th 2002
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