1、 KSKSKSKS SKSKSKS KSKSKS SKSKS KSKS SKS KS 2006 12 22 http:/www.kats.go.krKS A ISO 10645 KS A ISO 10645： 2006 (2011 )A ISO 10645： 2006 : ( ) ( ) ( ) : (http:/www.standard.go.kr) ： : 2006 12 22 : 2011 12 28 2011-0637 ： ： ( 02-509-72703) (http:/www.kats.go.kr). 10 5 , . ICS 27.120.10 KS A ISO 10645： 2
2、006(2011 ) Nuclear energy Light water reactors Calculation of the decay heat power in nuclear fuels 1992 1 ISO 10645 Nuclear energy Light water reactors Calculation of the decay heat power in nuclear fuels . 1. . . U235 U238 ( ) . 0 10 . 2. . 2.1 2.2 2.3 2.4 . 3. 3.1 A ISO 10645： 2006 2 A(t) (U239 N
3、p239 ) PA PS fi(t) i t fissionbyMeV/sfi(t) fi(t) fissionbyMeV/sFi(tk, Tk) 1 fission Tk tk i fission/sbyMeV/sFi(tk, Tk) Fi(tk, Tk) fission/sbyMeV/sH(t) (Cs133 ) PE PS Pkk Tk (1) Pikk Tk (2) PN(t, T) T t (2) PS(t, T) 2) PS(t, T) PS(t, T) (2) PSi(t, T) PS(t, T) i (2) PSi(t, T) PSi(t, T) 2) PE(t, T) (2)
4、 PB(t, T) U239 N239 (2) PA(t, T) (U239 239NP ) (2) PCs(t, T) 134Cs (2) Qi i fissionbyMeVQiQi fissionbyMeVt (2.3 1 ) s tk k Tk ( 1 ) s T (2.2 1 ) s Tk k ( 1 ) s Teff s ij24 fissionbyMeV/sij24 (3) fissionbyMeV/sij24 s 1 (1) (2) Pk (3) Pu241 5 % 3.2 i U235, U238, Pu239, Pu241 j A ISO 10645： 2006 3 k m
5、Tk 4. 4.1 . 4 U235, U238, Pu239, Pu241 ( U235 .) t 0 10 . . 4.2 . ( 1 A.1 ). . . , k t . . . 4.3 PS(t, T) (1) 4 . PS(t, T) =41S),(iiTtP (1) PSi(t, T) m , . PSi(t, T) = ) ,() ,(11S kkimkiikmkkkiTtFQPTtP= (2) Pik： Qi： ( 1 ) Pik/Qi： i Fi(tk,Tk) Tk tk . t fi(t) . Fi(tk, Tk) =+kTkkiTdtTTf0)( (3) fi(t) 2
6、ij, ij . A ISO 10645： 2006 4 fi(t) =241ejtijij (4) . Fi(tk, Tk) =kijkijtTjijij =e)e1(241 (5) PS(i, T) . PS(i, T) = = =411241e)e1(imkjtTijijiik kijkijQP (6) 1 i 4 . 1 PSi(t, T) tk . tm = t tm 1= t Tmt1= =+mkkTt2 (7) iiPPSS Fi(tk, Tk) iiQQ . i . iSmkkkiiikiiPTtFQPQiQiPP +=122SS),( (8) Qi Qi 1 . tk1 ,
7、Fi(tk, Tk) . 2 , , A ISO 10645： 2006 5 +=kTkkikkiTdtTTfTtF0)(),( (9) (4) fi(t) (ij ij 2 ). =241)(jtijiijetf (10) , kijkijtjTijijkkieeTtF= )1(),(241 (11) , ) ,s 1(),s 1(),(),(kkikkikkikkiTtFTtFTtFTtF = (12) . =41SSiiPP (13) 4.4 4.4.1 239U 239Np U239 Np239 . PB(t, T) = ),(),(NpU1kkkkmkkTtFTtFQP+= (14)
8、 Pk/Q k (14) . =41iiikkQPQP (15) (14) 20 . (14) FU(tk, Tk) FNp(tk, Tk) (16) (17) . kktTkkeeRETtFUU)1(),(UU= (16) =kkkktTtTkkeeeeRETtFUUNpNp)1( )1(),(NpUNpNpUUNppN (17) EU： (= 0.474 MeV) U239 ENp： (=0.419 MeV) Np239 U： (=4.9110 4s 1) U239 Np： (=3.4110 6s 1) Np239 R： U238 R . R =1.18e 0.141 0 0.2 6.21
9、0 3BU (18) 0： U235 ) BU： kg megawalts day 4.4.2 PA(t, T) (U239 Np 239 ) . PA(t, T) =A(t)PS(t,T) (19) 3 A(t) . A ISO 10645： 2006 6 1.9 % 0 4.1% 12.5 0(MWd/kg ) S 50(kW/kg ) 4.5 4.5.1 Cs134 Cs133 n Cs134 , 108s . . PCs(t, T) = ),(CsTtFQP (20) =41iiiQPQP (21) FCs(t, T) =tTTTeeeeyE444344) ( 1443) ( 44)
10、(Cs4+ (22) y： (=0.068 3) Cs133 Ecs： (=1.717 MeV) Cs134 4： (=1.071： 10 8s 1) Cs134 ： , cm 2s 13： (=10.710 24 cm2) Cs133 (n, ) 4： (=16.810 24 cm2) Cs134 (n, ) 3 4 (PWR) . (BWR) . Teff, eff P/Q (20) (22) . . Teff=mkkT1( k k 0) (23) eff=mkkkeffTT 11 (24) =mkikiikTQPTQP141eff1 (25) . k= )(1058.21213 scmS
11、effk (26) Sk： (kW/kg) eff： (0) . eff= 0.120+ (27) A ISO 10645： 2006 7 (26) k 5 % Pcs(t, T) ( 25MWd/kg) Pcs(t, T) 15 % . 4.5.2 Cs133 PE(t, T) . PE(t, T) = H(t)PS(t, T) (28) 4 H(t) , . 1.9 % 0 4.1 % BU 12.50(MWd/kg ) S 5 0(kW/ kg ) 4.6 ),(),(),(),(),(),(ECABSNTtPTtPTtPTtPTtPTtPs+= (29) PN (13) PS (P/P
12、) . 2N2SN),(),(),( +=PPTtPTtPnTtP (30) n . PB, PA, PCs PE . . PN(t, T) = PS(t, T) . 1 i Qi Qii Qeff, i(1) Qc, i(2) Qi= Qeff, i Qe, iQi1 2 3 4 235U 238U 239Pu 241Pu 193.5 194.6 199.7 201.8 8.7 10.9 11.5 11.9 202.2 205.5 211.2 213.7 0.5 1.0 0.7 0.7 (1) Qeff, i (2) Qc, i , 6.1 MeV . . A ISO 10645： 2006
13、 8 2 U235, Pu239, P241 U 238 U235 Pu239 j )fissionMeV/s( )fissionMeV/s( )s(1 j )fissionMeV/s( )fissionMeV/s( )s(1 1 2 3 4 5 6 0 6.505 710 15.126 410 12.438 410 11.385 010 15.544 010 22.964 0 2.573 910 13.894 810 29.689 710 34.653 610 31.135 310 32.499 0 2.213 810 5.158 710 11.959 410 11.031 410 13.3
14、65 610 21234560 2.083 010 13.853 010 12.213 010 19.460 010 23.531 010 22.319 5 1.126 110 12.106 310 21.134 110 25.801 010 31.353 810 32.183 6 1.002 010 6.433 010 12.186 010 11.004 010 13.728 010 27 8 9 10 11 12 2.222 510 2 3.308 810 39.301 510 48.094 310 41.956 710 43.253 510 53.989 310 46.805 610 5
15、1.706 510 51.413 910 54.032 210 65.046 810 71.168 110 23.587 010 31.393 010 36.263 010 41.890 610 45.498 810 57891011122.292 010 23.946 010 31.317 010 37.052 010 41.432 010 41.765 010 58.760 810 4 1.636 010 45.373 810 52.260 510 57.045 410 68.481 910 71.435 010 24.549 010 31.328 010 35.356 010 41.73
16、0 010 44.881 010 513 14 15 16 17 18 7.559 510 62.523 210 64.994 810 71.853 110 72.660 810 82.239 810 93.701 710 85.436 210 81.074 110 83.604 210 95.332 710 104.483 610 112.095 810 51.001 010 52.543 810 66.636 110 71.229 010 72.721 310 81314151617187.34710 61.74710 65.481 010 71.671 010 72.112 010 82
17、.996 010 92.972 110 79.950 910 82.708 610 88.352 710 91.056 910 91.497 810 102.006 010 58.319 010 62.358 010 66.450 010 71.278 010 72.466 010 819 20 21 22 23 24 8.164 110 12 8.779 710 112.513 110 143.217 610 164.503 810 177.479 110 171.631 410 131.760 810 124.985 610 166.403 310 189.112 210 191.498
18、210 184.371 410 97.578 010 102.478 610 102.238 410 132.460 010 141.569 910 141920212223245.107 010 115.730 010 114.138 010 141.088 010 152.454 010 177.557 010 172.552 110 122.860 810 122.072 210 155.420 610 171.226 810 183.929 110 189.378 010 97.450 010 102.426 010 102.210 010 132.640 010 141.380 01
19、0 14A ISO 10645： 2006 9 2 U235, Pu239, P241 U238 ( ) U238 Pu241 j )fissionMeV/s( )fissionMeV/s( )s(1 j )fissionMeV/s( )fissionMeV/s( )s(1 1 2 3 4 5 6 0 1.231 1 1.148 6 7.070 110 12.520 910 17.187 010 21.709 610 12.285 010 12.888 710 11.538 510 14.597 110 21.575 410 22.905 5 3.288 1 9.380 510 13.707
20、310 11.111 810 13.614 310 21234560 6.971 910 14.949 910 11.442 210 16.251 910 22.963 710 23.486 010 22.475 010 27.211 010 33.126 010 31.481 910 32.200 0 1.022 3 2.813 510 11.092 010 14.285 710 21.428 610 27 8 9 10 11 12 2.829 110 26.838 210 31.232 210 36.840 910 41.697 510 42.418 210 52.926 010 34.2
21、72 010 47.993 510 53.230 910 51.040 810 51.203 310 61.327 210 25.013 310 31.365 510 35.515 810 41.787 310 44.903 210 57891011124.923 610 37.000 410 41.298 910 3 2.354 010 45.846 610 46.506 610 52.461 810 43.500 210 56.494 510 5 1.177 010 52.923 310 5 3.253 310 65.191 310 31.568 610 31.069 410 35.388
22、 310 43.615 410 49.215 910 513 14 15 16 17 18 6.635 610 61.007 510 64.989 410 71.635 210 72.335 510 82.809 410 93.211 510 74.065 110 81.764 010 85.777 010 98.010 310 101.194 110 101.705 810 57.046 510 62.319 010 66.448 010 71.264 910 72.554 810 8131415161718 5.184 010 5 5.686 110 51.896 210 64.410 810 71.646 010 74.226 310 10 2.592 010 62.843 110 69.481 010 82.205 410 88.230 010 92.113 11
