Example of method 3 "Retrieving fuel debris from the side”

Index > Challenges and Plant information : Overview of methods｜Example of method 3 "Retrieving fuel debris from the side” > (7) Collect fuel debris and Collect fuel debris and transfer canisters

ⅰ) Challenges and reference information : (7) Collect fuel debris and transfer canisters

Task(s): Method for preparing temporary storage location and transportation of canisters.

(7) Collect fuel debris and Collect fuel debris and transfer canisters - Major challenges on the actual method

(1)Prior preparation

(2)Install barrier

(3)Create opening on the side of PCV

(4) Install equipment and access

(5)Dismantle and remove internal structures

(6)Retrieve fuel debris

(7)Transport canister

(8)Clean-up equipment

Storage method

Models of canister to be referred for temporary storage (Ex. Canister used at TMI-2)
Setting of installation places for canisters during storing operation
Method for storing the cut fuel debris

Plant information	Specification of canister Location and amount of fuel debris

Determination of temporary storage location

Assumption of specification of canister
Temporary storage for canisters
(Although basically SFP should be used, other sites can be used when accessing from the side)

Plant information	Atmospheric environment inside PCV (temp, dose rate, etc.) Specification of canister

Transporting method for canister

Layout of canisters setting at temporary storage
Method for installing canisters safely
Method for transferring canisters to temporary storage
Necessity of the barrier for canisters

Plant information	Specification of canister Plain view (Unit1) Plain view (Unit2) Plain view (Unit3) Name of major equipment and areas in reactor building

Assumptions and prerequisites	Allowable load of operation floor and passageway : 1.2t/㎡ Size of equipment which should be transported through passageway : Width 1.2m, Height 3m or less Overhead crane specification (Rated load 100t）

→(8) Clean-up equipment