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Due to the
amount of information is needed, the easiest way
to input the data is through a file.
This data file needs to follow
the GAMS syntax.
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Number of
crude oil and storage tanks
charging tanks
crude distillation units
components
crude vessels
Length of scheduling horizon
Costs:
Unloading cost of vessel
Sea waiting cost of vessel
Inventory cost of storage tanks
Inventory cost of blending (charging) tanks
Setup cost for CDU
Demand of blends during the scheduling horizon
Min and Max
crude oil transfer rate from vessel to storage
tanks
crude oil transfer rate from storage tanks to
charging tanks
charging rate of blend oil to CDU
Crude vessel arrival and leaving times around
docking station
Initial volume of crude oil in the crude vessel
Min and Max volumes of
crude oil in storage tanks
mixed oil in cahrging tanks
Min unloading duration time for vessel
Concentration of component in crude oil of vessel
Initial concentration of component in
crude oil of storage tanks
mixed oil of charging tanks
Min and Max concentration of component in
crude oil of storage tanks
mixed oil of charging tanks
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.Data file
This Data File should include all the
information described above using GAMS
format.
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CRUDEOIL
*
*MILP MODEL FOR REFINERY SHORT TERM
SCHEDULING OFCRUDE OIL UNLOADING WITH
INVENTORY MANAGEMENT
*
* H. Lee, J. M. Pinto, I. E. Grossmann
and Sunwon Park
* Department of Chemical Engineering,
Carnegie Mellon University
* Pittsburgh, PA 15213, U.S.A.
*
$TITLE Crude Inventory Management
SETS I Crude oil and storage tanks / 1*2
/
J Charging tanks / 1*2 /
K Components / 1 /
L Crude Distillation Unit / 1 /
T Times / 1*8 /
V Crude vessels / 1*2 /
PARAMETERS
CUNLOAD(V) Unloading cost of vessel v per
unit time /
1 8.0, 2 8.0 /
CSEA(V) Sea waiting cost of vessel v per
unit time /
1 5.0, 2 5.0 /
CINVST(I) Inventory cost of storage tank
i per unit time per unit volume /
1 0.05, 2 0.05 /
CINVBL(J) Inventory cost for each blend
tank per unit time per unit volume /
1 0.08, 2 0.08 /
DM(J) Demand of blend J by CDUs during
the scheduling horizon /
1 100.0, 2 100.0 /
FVSMIN(I) Minimum crude oil transfer rate
from vessel to storage tank I /
1 0.0, 2 0.0 /
FVSMAX(I) Maximum crude oil transfer rate
from vessel to storage tank I /
1 50.0, 2 50.0 /
FSBMIN(J) Minimum crude oil transfer rate
from storage tank to charging tank J /
1 0.0, 2 0.0 /
FSBMAX(J) Maximum crude oil transfer rate
from storage tank to charging tank J /
1 100.0, 2 100.0 /
FBCMIN(J) Minimum charging rate of
charging tank J to CDU /
1 10.0, 2 10.0 /
FBCMAX(J) Maximum charging rate of
charging tank J to CDU /
1 50.0, 2 50.0 /
TARR(V) Crude vessel v arrival time
around docking station /
1 1, 2 5 /
TLEA(V) Crude vessel v should leave
docking station by this time /
1 6, 2 8/
VVESINI(V) Initial volume of crude oil in
crude vessel v /
1 100.0, 2 100.0 /
VSTOINI(I) Initial volume of crude oil in
storage tank I /
1 25.0, 2 75.0 /
VSTOMIN(I) Minimum volume of crude oil in
storage tank I /
1 0.0, 2 0.0 /
VSTOMAX(I) Maximum volume of crude oil in
storage tank I /
1 100.0, 2 100.0 /
VBLEINI(J) Initial volume of mixed oil in
charging tank J /
1 50.0, 2 50.0 /
VBLEMIN(J) Minimum volume of mixed oil in
charging tank J /
1 0.0, 2 0.0 /
VBLEMAX(J) Maximum volume of mixed oil in
charging tank J /
1 100.0, 2 100.0 /
DURATION(V) Minimum unloading duration
time for vessel V /
1 2, 2 2 /
CSETUP(L) Setup Cost for CDU L /
1 50 /;
TABLE VESSTO(V,I) From vessel V to
storage tank I crude oil is trasferred
1 2
1 1 0
2 0 1;
TABLE STOBLE(I,J) From storage tank I to
charging tank J oil is transferred and
mixed
1 2
1 1 1
2 1 1;
TABLE BLECDU(J,L) Charging tank J charges
CDU L
1
1 1
2 1;
TABLE VCOMINI(V,K) Concentration of
component K in crude oil of vessel V
1
1 0.1
2 0.6;
TABLE SCOMINI(I,K) Initial concentration
of component K in crude oil of storage
tank I
1
1 0.1
2 0.6;
TABLE BCOMINI(J,K) Initial concentration
of component K in mixed oil of charging
tank J
1
1 0.2
2 0.5;
TABLE BCOMMIN(J,K) Minimum concentration
of component K in mixed oil of charging
tank J
1
1 0.15
2 0.45;
TABLE BCOMMAX(J,K) Maximum concentration
of component K in mixed oil of charging
tank J
1
1 0.25
2 0.55;
SCALARS SCH Scheduling Horizon / 8 /
NCDU Number of CDU / 1 /
MODE Minimum changeover number for CDUs /
1 /
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