高温純水中の電気化学測定 - aesj.or.jp

1 Hitachi, Ltd. 2011. All rights Research Laboratory 13 2011/06/28 Hitachi, Ltd. 2011. All rights Research Laboratory 13 2011/06/281 1 2 3 Zr 4 Hitachi, Ltd. 2011. All rights Research Laboratory 13 2011/06/2821 Hitachi, Ltd. 2011. All rights Research Laboratory 13 2011/06/283 SCC 1 Hitachi, Ltd. 2011. All rights Research Laboratory 13 2011/06/284 (SHE) 1/10 : 2004 28mm/ SUS304 SUS SUS304 SUS ECP (SHE <20 S/m ECP (SHE 20 S/m (ECP:Electrochemical Corrosion Potential)2 Hitachi, Ltd.))

2 2011. All rights Research Laboratory 13 2011/06/285 3 (a) (b)Ag/AgCl (ECP) ECP PLRRWCU ECP ECP ( ) ( ) ECP ECP ECP (1) (2) Hitachi, Ltd. 2011. All rights Research Laboratory 13 2011/06/286 304SS 288 C , , 38,p183 (2001) (V(SHE)) (ppb) (SHE) , Degradation, (2003)4 (ppm) (ppb) BWR/5 SIMFONY Hitachi, Ltd.

3 2011. All rights Research Laboratory 13 2011/06/2872 Hitachi, Ltd. 2011. All rights Research Laboratory 13 2011/06/288 5 HiLoGuard NWC GND VvsSHE } (VvsSHE) { Hitachi, Ltd. 2011. All rights Research Laboratory 13 2011/06/289 6 Ag/AgCl Pt 3 ZrO2 Ag/Ag2O H Zr Hitachi, Ltd. 2011. All rights Research Laboratory 13 2011/06/2810 RPV: Reactor Pressure VesselMS: Main Steam, FW: Feed WaterRWCU: Reactor Water Clean UpTurbineHeaterRWCU systemFW systemPLR systemO2injectionRecombinerStackAireject orPreheaterPLR system sampling lineCoolerMS systemCondenserOff gas ratemonitorH2injectionCondenserO2, H2O2, H2conductivity, pHO2, H2, pH, conductivitymetal ions, activities , Int.

4 Con. on Water Chemistry of Nuclear Reactor Systems, 2008, Hitachi, Ltd. 2011. All rights Research Laboratory 13 2011/06/2811 , Int. Con. on Water Chemistry of Nuclear Reactor Systems, 2008, 6/12 6/14 6/16 6/18 ECP Ag/AgCl-1 Ag/AgCl-2 Pt (ppm) (ppm) V(SHE) Hitachi, Ltd. 2011. All rights Research Laboratory 13 2011/06/2812 PLR at 07/05/08 06/6/1 06/7/31 06/9/29 06/11/28 07/1/27 07/3/28 07/5/27 ppm :Pt:Ag/AgCl Cr , Int. Con. on Water Chemistry of Nuclear Reactor Systems, 2008, V(SHE)ECP Hitachi, Ltd.

5 2011. All rights Research Laboratory 13 2011/06/2813 PLRPump (4L/min) RWCUC ooler BDL10O2, H2 H2O2 FWMS MS: Main Steam, FW: Feed Water RWCU: Reactor Water Clean UpBDL Bottom Drain Line BNC H. Takiguchi, J. Nucl. Sci. Technol.,36, 179 (1999)FI Hitachi, Ltd. 2011. All rights Research Laboratory 13 2011/06/2814 ppm (2)H. Goto, The 13th Chino-Japanese Seminar on Nuclear Safety, Taipei, ROC, JAIF (1999).(1)H. Takiguchi, J. Nucl. Sci. Technol.,36, 179 (1999)(3) , Proc. of the 7th Int l Conf. on Nuclear Engineering, April 19 23, 1999, Tokyo, Japan, JSME, ICONE-7305 (1999).

6 V(SHE) BWR/2(1) BWR/3 (2) BWR/4 (1) ABWR 3 BWR Hitachi, Ltd. 2011. All rights Research Laboratory 13 2011/06/28153 Hitachi, Ltd. 2011. All rights Research Laboratory 13 2011/06/2816 Ag/AgCl Pt ZrO2 Fe/Fe3O4Ni/NiO W W Zr 12 Hitachi, Ltd. 2011. All rights Research Laboratory 13 2011/06/2817 VvsSHE ( C) 1 2 [O2]+1/2[H2O2](ppb)0246810 12020406080100 ( m) 288 C 6ppm 1kg/h kh) m BWR 10000h m 13 (1) , 44, p1448 (2007) (2) , Corros, 61, p889 (2005) Hitachi, Ltd.

7 2011. All rights Research Laboratory 13 2011/06/2818Zr 10 100 1000 10000Zr VvsSHE 280 C 8 MPa 50kg/h 5cm/s S/m 0 1000ppb 40ppb ppb) 40ppb 14 0 1000ppb K. Ishida, et al., Proc. 8th Int'l Radiolysis, Electrochemistry & Materials Performance Workshop, Oct. 8, 2010, Quebec City, Canada, (2010) Hitachi, Ltd. 2011. All rights Research Laboratory 13 2011/06/2819 SUS316L ppm 20406080100120140 SUS316 (VvsSHE) 10ppb (h)Ag/AgCl 02468 285 C 8 MPa 2kg/h S/m Ag/AgCl 15 K. Ishida, et al., Proc. 8th Int'l Radiolysis, Electrochemistry & Materials Performance Workshop, Oct.

8 8, 2010, Quebec City, Canada, (2010) Hitachi, Ltd. 2011. All rights Research Laboratory 13 2011/06/2820Zr 012 34 ppm 280 C 8 MPa 1kg/h S/mZr VvsSHE kh) 6000h K. Ishida, et al., Proc. 8th Int'l Radiolysis, Electrochemistry & Materials Performance Workshop, Oct. 8, 2010, Quebec City, Canada, (2010)16 Hitachi, Ltd. 2011. All rights Research Laboratory 13 2011/06/28214 Hitachi, Ltd. 2011. All rights Research Laboratory 13 2011/06/2822 10-1100101102103-1 0 1 A/cm2 VvsSHE) (O2 H2 H2O2) (ECP)PLRRWCU ECP 17 Hitachi, Ltd.

9 2011. All rights Research Laboratory 13 2011/06/2823 0200400600800100010-310-210-1100 mV/s A/cm2 V SHE 0 IR 1 2 10mV/step 1000s ( 10-2mV/s) 18 , , 46, p132 (2009) Hitachi, Ltd. 2011. All rights Research Laboratory 13 2011/06/2824 (1013 ) ( ) pHN2,O2 pH DO F VVAAWCR W R C W R C 19 BWR , , 46, p132 (2009)8 MPa 280 C Hitachi, Ltd.

10 2011. All rights Research Laboratory 13 2011/06/2825 SUS304 280 C 8 MPa 1kg/h S/m 4ppb A/cm2 1 , , 46, p132 (2009) 2 , Boshoku Gijutsu, 34, 86(1985) 3 , Corrosion, 58, 208(2002) 4 , , 32, 395(1983) VvsSHE) (1) (2) Kim(3) (4) ( Hitachi, Ltd. 2011. All rights Research Laboratory 13 2011/06/2826 21 SUS316L SUS304 Alloy 182 A/cm2 280 C 8 MPa 1kg/h S/m VvsSHE) SUS304 SUS316 LAlloy182 / wt%CCrMnP10-3S10-3 SiMoCuNb+ < , Symp. on Water Chemistry and Corrosion in Nuclear Power Plant in Asia Hitachi, Ltd.