Read or Download LWR Lower Head Failure Analysis PDF
Similar analysis books
For a very long time, traditional reliability analyses were orientated in the direction of picking out the extra trustworthy process and preoccupied with maximising the reliability of engineering platforms. at the foundation of counterexamples even though, we exhibit that deciding upon the extra trustworthy method doesn't inevitably suggest identifying the process with the smaller losses from mess ups!
This quantity is a suite of articles offered on the Workshop for Nonlinear research held in João Pessoa, Brazil, in September 2012. The impression of Bernhard Ruf, to whom this quantity is devoted at the get together of his sixtieth birthday, is perceptible during the assortment through the alternative of subject matters and methods.
- Computational intelligence and pattern analysis in biology informatics
- Handbook of Longitudinal Research: Design, Measurement, and Analysis across the Social Sciences
- Reducing Gun Violence in America: Informing Policy with Evidence and Analysis
- Erfolgsfaktoren von Banken im Firmenkundengeschaft. Empirische Analyse und konzeptionelle Anwendung
- Epidemics of Plant Diseases: Mathematical Analysis and Modeling
Extra resources for LWR Lower Head Failure Analysis
Crust • + .... him Structure M463+WH 1"1f01-24 Figure 2-7. Cctnt'igurati(_r_I'(tr analyzing a vertical jut impinging ¢_na horiz(mtal surl'acc. R-564 2 2-2() Review ¢_t'Previ¢_us Rest'Itch xec¢mdctmdiihmwas l'¢_r sirtmgjetl¢_rccs, where turbulenl mixingand mass trlmsl'er effects ill the impactsurfaceledI¢_c¢mvecthm-c¢mtr¢_IIed heattransfer. c¢mtr¢illed heattransl_'r because_I'therelatively h_wconductivity ¢_f lhcnu_Iten ceramicm_llurial (c¢_rium),el thehighthermalCalmcity ¢_I" thelargevesselhead.
However, this effect is offset when temperatures in the debris bed reach melting hecause there is more space available l'c)r melt relocation in a higher porosity debris bed. Likewise, the competing effects o1"effective conductivity and flow resistance during melt relocation made analysis results less sensitive to particle size assumptions. A stratified debris compc)sition substantially increased the failure tirncs over the uniff)rmly mixed bed times reported above. 2 EPRI Analysis EPRI's IDCOR Prognim sponsored a creep rupture analysis ()1'a PWR I()wer head with no) penetrations.
Tlc_wtrver, ¢)hscrw_tic)ns ¢)1'the m;_cr_)sC_)l)ictrend in vessel wall rcspc_nsc t_ such he_tul_ tends tt_ indicate that a much simpler, analytic mt_del c_l"structural c_pacity may he p_ssiblc. This simpler mt>dcl wc>uld then allt_w simultancc_us evaluatitm c_l"glc_l_al t'_=ilurcwith the lut_e penctr;=ti_n I';lilurc mechanisms discussed prcvit_usly. Tying the evalu;_tic_n c_l"these l'ailurc mechanisms t_gcthcr in simple _lnalytic s_lutit_ns _lfcrs an cvalu_ti¢_n ¢_1" the failure sequence and the tlevclc_pment t_t"e==silyur_tlcrstt_d tailur¢ maps.
LWR Lower Head Failure Analysis