1. Transuranic (TRU) Waste
MR&R Non-Permitted POC
P238 Non-Permitted POC
Pu 239 Non-Permitted POC
Pu 239 Non-Permitted STD
PEI Non-Permitted POC
PEI Non-Permitted STD
OS D&D Non-Permitted POC
OS D&D Non-Permitted STD
CMR Non-Permitted POC
MR&R Permitted POC
P238 Permitted POC
Pu 239 Permitted POC
Pu 239 Permitted STD
PEI Permitted POC
PEI Permitted STD
OS D&D Permitted POC
OS D&D Permitted STD
CMR Non-Permitted POC
OS Pu 239 Permitted Ov ersized
OS 238 Permitted Ov ersized
OS Containing Pu 238 Ov ersized
R L
Staging Area
HazMat
Ov erf low
Permitted
HazMat-Ov ersized
Non-Permitted
B40
B45
B05
HazMat
TWF
{...}

Read Values
ContainerType
IncomingMAR
B40eMAR
B45eMAR
B05eMAR
B35eMAR
G12eMAR
y =f (x)
PF4MARCap
TWFeMAR
HazMateMAR
ContainerType
HENCeMAR
YardMARCap
TWFMARCap
ContainerType
IncomingMAR
B40eMAR
B45eMAR
B05eMAR
B35eMAR
G12eMAR
y =f (x)
Ov erf low
G12
B35
HENC
TWF
Permitted
Permitted Up;Non-Permitted Down
y =f (x) PF4MARCap
IncomingMAR
TWFeMAR
HazMateMAR
HENCeMAR
YardMARCap
TWFMARCap
HazMat-Ov ersized
start B05
start B35
start B40
start G12
start TWF
start HazMat
start HENC
start B45
B05
B35
B40
B45
G12
TWF
HazMat
HENC
R L
R L
R L
R L
R L
R L
R L
R L
R
L
L
B40
R
L
L
B45
R
L
L
B05
R
L
L
B35
R
L
L
G12
R
L
L
HENC
B40Cap
R
L
L
TWF
B45Cap
B05Cap
B35Cap
G12Cap
HENCCap
HazMatCap
i
r L
#
DB
i
r L
#
av g I
R
L
L
HazMat
y =f (x)
{...}
DB
#
B40
#
B45
#
B05
#
B35
#
G12
#
HENC
#
HazMat
#
TWF
DB
R
L
L
Ov erf low
y =f (x)
{...}
DB
{...}

#
Ov erf low
y =f (x)
{...}
DB
{...}

y =f (x)
{...}
DB
{...}

{...}

y =f (x)
{...}
DB
{...}

y =f (x)
{...}
DB
{...}

y =f (x)
{...}
DB
{...}

y =f (x)
{...}
DB
{...}

y =f (x)
{...}
DB
{...}

CurrentTime
{...}

{...}

i
r L
#
av g I
DB
CurrentTime
{...}

{...}

i
r L
#
av g I
DB
CurrentTime
{...}

{...}

i
r L
#
av g I
DB
{...}

{...}

CurrentTime
{...}

i
r L
#
av g I
DB
CurrentTime
i
r L
#
av g I
DB
CurrentTime
CurrentTime
i
r L
#
av g I
DB
CurrentTime
B40eMAR
i
r L
#
av g I
DB
CurrentTime
DB:Value Collection:B40 Beta ->
Excel:TRU Waste Model Interf ace.xlsx
B40 Contents
DB:Value Collection:B45 ->
Excel:TRU Waste Model Interf ace.xlsx
B45Contents
DB:Value Collection:B05 ->
Excel:TRU Waste Model Interf ace.xlsx
B05 Contents
DB:Value Collection:B35 ->
Excel:TRU Waste Model Interf ace.xlsx
B35 Contents
DB:Value Collection:G12 ->
Excel:TRU Waste Model Interf ace.xlsx
G12 Contents
DB:Value Collection:HENC ->
Excel:TRU Waste Model Interf ace.xlsx
HENC Contents
DB:Value Collection:Ov erf low ->
Excel:TRU Waste Model Interf ace.xlsx
Ov erf low
DB:Value Collection:HazMat ->
Excel:TRU Waste Model Interf ace.xlsx
HazMat Contents
DB:Value Collection:TWF ->
Excel:TRU Waste Model Interf ace.xlsx
TWF Contents
TWFCapCurrent
get
want
get
want
get
want
get
want
get
want
get
want
get
want
get
want
get
want
B45eMAR
B05eMAR
B35eMAR
G12eMAR
HENCeMAR
TWFeMAR
OverfloweMAR
HazMateMAR
Methodology & Assumptions
Results and Graphs
**Values are for demonstration purposes only and do not
represent actual capacities and conditions
Results
Waste Type
 Permitted waste contains a mixture of radioactive and
hazmat material such as lead and plutonium.
 Non-Permitted waste is radioactive but has no hazmat
material.
Multi-stacking
 Drums can be stacked on top of each other to increase drum
storage capacity. Double stacking results in double capacity, triple
stacking results in triple capacity, etc.
Container Type
 Standard: 55 gallon drum with a damage ratio of 1
Pipe Overpack Container (POC): 55 gallon drum with a pipe
inside to provide extra protection and reduce the MAR damage
ratio (usually from 1 to .1)
Oversized: Waste that is too big to fit in drum (i.e. Glove box).
Damage ratio of 1
Storage Area Availability
 Some areas are not currently available to receive waste, but
might be in the future. Areas include TA-55 storage locations
and the TRU Waste Facility.
Discrete-Event Simulation of Nuclear Waste Production and Storage
Dillon (Dewey) Potts – Applied Engineering and Technology Division, Process Modeling and Analysis Group (AET-2)
Background
Research Question
Conclusion
Acknowledgements
Legacy Waste Current Waste Generation
Waste Isolation Pilot Plant (WIPP) Drum Event Causes WIPP Suspension
With the actual restart date of WIPP still unknown, what
measures can be taken to manage TRU storage space and
continue programs at LANL without exceeding storage space
limits?
A discrete-event modeling software, ExtendSim®, was chosen to
model the production and storage of transuranic waste.
Microsoft Excel was used as an interface to input and interpret
data so that a user without ExtendSim® experience could more
easily change variables and run simulations.
Damage ratios decreased to .1 (compared to .25 above)
Areas B05, B35, G12, HENC allowed to accept permitted waste
in October, 2016
The waste model is useful because it allows users to see
how changing input variables (damage ratio, capacity, etc.)
will affect the date where stored waste exceeds capacity.
The Excel user-interface allows the end-user to manage
simulation scenarios within a familiar environment.
Drum production decreased by 15% (as compared to below)
Robert Parker, Simon Balkey, Drew Kornreich, and Warren Neff
from AET-2
Los Alamos has the need to dispose of legacy and enduring
program transuranic (TRU) waste. That waste is ultimately sent
to the Waste Isolation Pilot Plant (WIPP).
An accidental reaction within a drum caused WIPP to suspend
waste acceptance. Due to the suspension, LANL lost its only
outlet source for both legacy and current generation of TRU
waste.
TWF double stacked in November, 2017
Top-Level View of Waste Production and Storage Model