RSICC DATA PACKAGE DLC-264

 

 

1.         NAME AND TITLE OF DATA LIBRARY

EACRP-D2O-LATTICES, Compilation of Reactor Physics Measurements in HWRs Lattices.

 

2.         NAME AND TITLE OF DATA RETRIEVAL PROGRAMS

Requires Microsoft Word and Acrobat Reader.

 

3.         CONTRIBUTOR

The OECD/NEA Committee on Reactor Physics, Paris, France through the OECD Nuclear Energy Agency Data Bank, Issy-les-Moulineaux, France. 

 

4.         HISTORICAL BACKGROUND AND INFORMATION

The Heavy Water Lattice Data compilation with identification EACRP-L-42 was collected and prepared by European American Committee on Reactor Physics between the years 1958 and 1963. Original collection (denoted as HWL in the following) contains data from critical and exponential experiments performed in a variety of laboratories in different European countries, Canada and in the USA. The experiments listed in this document were performed in the late 50's and early 60's. Benchmarks are grouped according to their origin (laboratory and facility, where they were performed) and lattice type. Each benchmark group from one series of experiments is documented only briefly on one benchmark description sheet. Data reported on the sheets are short fuel assembly description, lattice description, fuel and lattice diagrams and experimental results. Each sheet usually contains several individual benchmark cases, with different lattice pitches and experimental conditions. Original source of data (references) are also reported. The quality of reproduction of these sheets is sometimes low (low PDF resolution). So the details of fuel assembly and lattice diagrams on some sheets are not visible. To reconstruct these benchmarks additional "data mining" in old (sometimes hard to access) journals has to be performed. Some references point only to internal documents of the laboratories which performed these experiments. The HWL compilation includes 253 benchmark configurations in total, including 3 incomplete benchmarks and 250 complete and finished benchmarks. These configurations have often several cases with different lattice pitches. In total this compilation includes over 700 different individual benchmark cases. The HWL compilation of lattice benchmarks is more extensive and contains more benchmarks compared to the Light Water Lattice (LWL) compilation (NEACRP-H2O-LATTICES).

This information was assembled, reviewed and released in the framework of the Reactor Physics Committee activities of the OECD/NEA.

 

5.         APPLICATION OF THE DATA

A selected set of benchmarks are modeled and calculated in unit-cell (pin-cell or cluster) approximation using the WIMSD code. A pin-cell is a single fuel pin with associated cladding and coolant, in an array of identical pin-cells.

6.         SOURCE AND SCOPE OF DATA

The report contains the following data by country of origin:
Country Number of Lattices
( C) Canada 17
(CH) Switzerland 4
(DK) Denmark 8
(EUR) Euratom 5
(F) France 1 4
(G) Germany 12
(I) Italy 4
(IL) Israe l 1
(N) Norway 8
(S) Sweden 15
(UK) United Kingdom 5
(USA) United States 157
(YU) Yugoslavia 1
Total 251

Benchmarks grouped according to their fuel type and uranium enrichment
----------------------------------------------------------------------
Uranium enrichment Nb of benchmarks Nb of benchmarks with
& Fuel type experimental buckling

Natural uranium metal 131 125
Natural uranium oxide 88 82
Natural uranium 219 207
Enriched uranium metal 1 (+ 3) 1
Enriched uranium oxide 16 15
Enriched uranium 17 (+ 3) 16
Thorium & uranium oxide 10 0
Mixed fuel (different rods) 4 0
Other fuel types 14 0
Total 250 (+ 3) 223

Benchmarks with enriched uranium fuels and with fuels other than natural uranium
--------------------------------------------------------------------------------
Fuel type Nb of benchmarks Benchmarks with Cases with
and enrichment exp. Buckling exp. Buckling

Above natural
and up to 2% enrichment 9 9 9
Uranium metal 0 0 0
Uranium oxide 9 9 9

Between 2% and 3% enrichment 8 7 15
Uranium metal 1 1 9
Uranium oxide 7 6 6

Other fuel types 14 0 0
UO2 lattice with added 4 0 0
Pu-Al rods
(nat. U and 1.8% Pu in Al)
Lattices w/ThO2 and UO2 fuel 10 0 0
(2%, 4% and 6.7% enriched U)

Total 31 16 24

Benchmarks given according to their types and fuel types
--------------------------------------------------------
Type of experiment Natural U Enriched U Other fuel types Total
Critical 86 17 12 115
Critical substitution 101 0 2 103
Subcritical 21 0 0 21
Subcritical substitution 11 0 0 11
Total 219 17 14 250

7.         DISCUSSION OF THE DATA RETRIEVAL PROGRAM

Requires Microsoft Word and Acrobat Reader.

 

8.         DATA FORMAT AND COMPUTER

PC, UNIX Workstations, MAC (D00264MNYCP00). 

 

9.         TYPICAL RUNNING TIME

N/A

 

10.       REFERENCES

Included Documentation.

“Heavy Water Lattice Data in Two Volumes, Volume 1: European Countries and Canada, Volume 2: USA,” Tomaž Žagar, EACRP-L-42 (September 2006).

 

11.       CONTENTS OF LIBRARY

The EACRP-D2O-LATTICES package is transmitted on CD and includes pdf and Excel files along with the documentation listed in Section 10.   

 

12.       DATE OF ABSTRACT

May 2013.

 

KEYWORDS:     MOX, EXPERIMENT, HEAVY WATER REACTORS, REACTOR PHYSICS, THERMAL REACTORS