246
Appendix A1: Experimental Benchmarks on ADS at Kyoto University …
Polyethylene
(19”PE)
Unit cell
(7/16”)
1/8”PE+1/4”PE
(3/8”)
1/16” EU
Polyethylene
(19”PE+1/2”PE 2 = 20”)
20 mm Al plate
1/2“PE 2=1”
1/2“PE 5+1/8“PE 5
(25/8”) + Void (1/3”)
Reflector 20.787”
(Lower)
Fuel 15.750”
(Unit cell 36 times)
Reflector 23.462”
(Upper)
Fig. A1.2 Fall sideway view of “F” (3/8 P36EU) fuel assembly (Ref. [1])
60”
Polyethylene
24”
Polyethylene
21”
Fuel
(36 cells )
15”
51.3 mm
54.3 mm
55.3 mm
Void
between
assemblies
Fuel
2” 2”
(50.8 mm)
Aluminum
sheath
Internal void
Fig. A1.3 Description of fuel assembly at KUCA (Ref. [1])
Appendix A1: Experimental Benchmarks on ADS at Kyoto University …
Polyethylene
(19”PE)
Unit cell
(7/16”)
1/8”PE+1/4”PE
(3/8”)
1/16” EU
Polyethylene
(19”PE+1/2”PE 2 = 20”)
20 mm Al plate
1/2“PE 2=1”
1/2“PE 5+1/8“PE 5
(25/8”) + Void (1/3”)
Reflector 20.787”
(Lower)
Fuel 15.750”
(Unit cell 36 times)
Reflector 23.462”
(Upper)
Fig. A1.2 Fall sideway view of “F” (3/8 P36EU) fuel assembly (Ref. [1])
60”
Polyethylene
24”
Polyethylene
21”
Fuel
(36 cells )
15”
51.3 mm
54.3 mm
55.3 mm
Void
between
assemblies
Fuel
2” 2”
(50.8 mm)
Aluminum
sheath
Internal void
Fig. A1.3 Description of fuel assembly at KUCA (Ref. [1])