Ya imel v vidu vdobavok k tvoemu grafiku vnizu postroit' nizhe … · 2012-12-02 · To, chto nuzhno. Vklyuchi nitric acid production rate per cell and per entire TAD canister cavity

LSNReviews

From: Oleg Povetko [[email protected]]Sent: Wednesday, February 13, 2008 5:04 PMTo: natalexSubject: RE: G(T)

Ya imel v vidu vdobavok k tvoemu grafiku vnizu postroit' nizhe dobavochnyj grafik, ispol'zuya G-values dlya nitric acid iz ANL-97/15otcheta so stranicy 36:

1

£ MCNP data for Gamma

MCNP Data for Neutrons

-Nitrc Acid Production Rate in Cell #1 from Gamma Radiation for G-Factor=1 molecul/100 eV-- Nitnc Acid Production Rate in Cell #1 from Neutron Radiation for G-Factor=1 molecul/100 eV

1.OOE+02

1.OOE+01 ,

1.OOE+00 \= 1.OOE-01

t_ ;, 1OOE-02

1O0E-03 "M. 1.001E-04 - •'--

~ 1.OOE-05

- 1.OOE-061OOE-07

1 1 1E-08001 0.. 010 100 1000 10000 100000 100%000

Years

Figure V. 1 Nitric Acid Production Rate

From: natalex [mailto:[email protected]]Sent: Wednesday, February 13, 2008 2:53 PMTo: 'Oleg Povetko'Subject: RE: G(T)

>> V dobavienie k tomu, chto poschitano dlya G=1.0, vstav' takuyu zhe tablicu i grafik dlya G-values (3.2, 1.3, 0.4) dlya nitric acid izANL-97/15 otcheta so stranicy 36:

2

f-oCMOTpM, noLgeT?Alexei

Gamma Sample, 25 0C, 36 Gy/hCumulative Exposure, Cumulative Exposure,KGy MGy

30.17

30.17

49.66

49.66

108.6

108.6

108.6

108.6

0.03017

0.03017

0.04966

0.04966

0.1086

0.1086

0.1086

0.1086

Total HNO3 inpmoles

0.220.270.330.460.710.820.560.51

Gamma Sample, 90'C, 30Cumulative Exposure,KGy

24.75

24.75

62.42

62.42

61.36

61.36

100.62

100.62

86.11

86.11

Gy/hCumulative Exposure,MGy

0.02475

0.02475

0.06242

0.06242

0.06136

0.06136

0.10062

0.10062

0.08611

0.08611

Total HNO3 inpImoles

0.140.050.040.030.180.080.040.050.320.28

3

Measured Nitrate + Nitrite Formation as a Function of Cumulative Exposure Dose

0.9

C76E

0zI

F-

0.7

0.6

015

0.4

0.3

0.2

0.1

Gamma Sample, 25C, .

N Gamma Sample, 90TC, .UU

4

IU

UIU I

0

0 0.02 0.04 0.06 0.08 0.1 0.12

Cumulative Exposure, MGy

According:Radiation Effects in Moist-Air Systems and the Influence of Radiolytic Product Formation onNuclear Waste Glass Corrosion

ANL 97/15 Argonne National Laboratory

D. J. Wronkiewicz, J. K. Bates, E. C. Buck, J. C..Hoh, J. W. Emery, and L. M. Wang

4

From: Oleg Povetko [mailto:[email protected]]Sent: Tuesday, February 12, 2008 2:16 PMTo: 'natalex'Subject: G(T)

V dobavlenie k tomu, chto poschitano dlya G=1.0, vstav' takuyu zhe tablicu i grafik dlya G-values dlya nitric acid iz ANL-97/15 otchetaso stranicy 36:

The gamma tests run at 25, 90, and 200'C measure the formation of radiolytproducts as a function of temperature. Results indicate that nitrate + nitrite production vari(inversely with temperature, with the lowest quantifies being detected for the higher-temperatuiexperiments (Fig. 6. and Table 10). Average G(NO3" + N0 2 ) values for the 25, 90, and 2000rinse Solutions are 3.2 ± 0.7, 1.3 ± 1.0, and 0.4 ± 0.3, respectively, while results from the 25'tests differ from the G(NO 3 ) = 1.2 value obtained during 1.0-MeV electron irradiation testsambient temperatures [8]. These results indicate that yields for the 900 C experiments are -40wof those that characterize the 250 C results, while the 200°C yields are -10%. The 900C yiekare also comparable to the G(NO;) = 1.9 values obtained in neutron irradiation tests conducted;S0 'C [11]. The proportionally larger degree of data scatter for the higher temperatures tesreflects analyzed concentrations that are approaching limits of determination (-0.2 ppm).

5

I

7/ a 250C, 36 Gy/h

V a 900C, 30 Gy/h(D 0.8 cO 2000C, 40 Gy/hE . I e .1

0 J

0 0.4 0/" 0o} A S

0. B6.A -

- C4 .[ .04 --

0.2 -, s ..-- 0.QOC. --E- 0.-. 20ooDC_..a ,f -0 .....

",0 .:-- o .102

0 0.05 0.1 0.15 - 0.2

Cumulative Exposure, MGy

Fig. 6. Measured Nitrate + Nitrite Formation in -35 Gy/h Blank Gamma Tests as a Functionof Cumulative Exposure Dose. Dotted lines represent average yields for tests attemperatures of 25, 90, and 200°C. Line for the 80°C trend derived from neutronirradiation study of Linacre and Marsh [I 1].

From: natalex [mailto:[email protected]]Sent: Tuesday, February 12, 2008 2:01 PMTo: 'Oleg Povetko'Subject: RE:

6

From: Oleg Povetko [mailto:[email protected]]Sent: Tuesday, February 12, 2008 9:59 AMTo: 'natalex'Subject: RE:

Normal'no. To, chto nuzhno. Vklyuchi nitric acid production rate per cell and per entire TAD canister cavity otdel'no. Kak ya ponyal, v Tablice V.4

tvoego otcheta g/Year - eto production rate of nitric acid v Cell #1, tak?

LQa

V(Cell #1) =

2.06878E+06 CmA3= (Pi* 79.455* 79.455 - 21 * 27 * 27) * ( 228.75 - (-228.75))

79.455 - TAD Radius21 - Assemblies Count27 - Assemblies Pitch( 228.75 - (-228.75)) - Assembly & TAD Heights

>>Nam nuzhno takzhe ocenit' production rate vo vsej polosti TAD canister. Ya kak-to ocenival davno ob'em etoj polosti:

Cavity volume

(d -3) 2

V:= (h- 12)-d -)AW4(Approximate MPC-68 chicknesses from FSAR Appendix5.C)

V = 1. 14x 10 7 cmA3

Approximate net free volume inside cavity237.5

Vfree := V-7.367.9 (Ratio fr

72-1008

Vfree = 735x 10 '-- -- - - -- cm '3'

)m HI-STAR MPC-24 FSAR, Rev.01, DOCKET, Table 4.4.13)

7

>>Mozhesh' prosto umnozhit' na etu Vfree, a esli vremya est', to poschitaj real'nyj ob'em polosti v MCNP modeli.

Alexei

From: natalex [mailto:[email protected]]Sent: Monday, February 11, 2008 9:05 PMTo: 'Oleg Povetko'Cc: 'Oleg Povetko'; 'SWRI'Subject:

Take a look at these five slides ...

I'll send you them if they are right.

Alexei

My MCNP Calculations:

1.

8

-

-y

/

TAID lInIwril Raft iuvaM5A6 cm

7

/ R

PWR2 1RaiaGoer; o y CPCluain

I/

II.

9

A, MCNP data for Gamma

* MCNP Data for Neutrons

Nitric Acid Production Rate in Cell #1 from Gamma Radiation for G-Factor=-1 molecul/l00 eV

INitric Acid Production Rate in Cell #1 from Neutron Radiation for G-Factor=l molecul/100 eV

1.0017+021.00E+01 -l~

1.00E+00

1.00E-01

I .OOE-022

0 >o 1.00E-03,-..--

1.OOE-04 _

.? 1.DOE-05"• 1,0OF-05; "-_ __ _ ___-._ __ _

1 D.O E -0 7 -i

1 .OOE-08

10 100 100C 10000 100000 1000(

Years

10

250 -F 1I I

2010

E

100

5-

I. Potential \*,

dustdeliquescencorrosionIperiod

A

-I

II. Potential, brine period

0.9

0.8

0.7

0.5 ,

0.4

Drysyst(

0,2

0.19M Lr-- -3

I ..- .............. ................ I ........................ - ...... ................................. I .......................................... ................ - - 4 0

100 1 OI3O 10000 100000

Time, yr

(After Pensado, 2006)

Ill.

11

-Nitric Acid Accumulation in Cell •1 from Gammn a Radiation 1orG-Factor=-1 molecul100 eV

-Nitflc Acid Accum ulation in Cell #1 from Neutrons kr G-Factorzl molecultl O0 eV

1,00E+03

1.OOE t021.00E +02

1.OOE +00E= 1.OOE-0J

,: 1.OOE-03

=

1. OOE-04

1.OOE-05 .10 100 1000 10000 100000 1000000

Years

Nitric Acid Accumulation under assumption that no acid removal mechanisms present

Comparing My Calculation Results with DOE Report

IV.

12

Present MCNP Calculations*-- DOE Report*"1. Assembly Type:

Babcock & Wilcox (B&W) 15 x 15 PWR SNF Assembly2. Enrichment:

5.0-wt0 /o initial 235U 4.0-wt% initial 235U3.B___

78.26 GWd/MTU 48 GWd/MTU4. Doses Calculation Volume Geometry:

TAD Internal Space Excluding AssembliesUnit Cells Outside the Fuel Rods in theCentral Nine SNF Assemblies of the 21-PW TD

13

Table of Differences in Calculation Geometry of DOE and Present

V.

14

-- --------

-+-Present MCNP Calculations * -*-DOE Report **

1 ,00E+1 8

0 E2 Ec

C E

O's 0

LLqr

E 40

1.00E+17

1.00E+16

1.00E+15

1.OOE+14

t .00E+13

1.00E+1210 100 1000 10000 100000 100000

YP-ar s15

Nitric Acid Production Rate Graphs

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