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Dynamic Simulation of Grain Dynamic Simulation of Grain Storage FacilitiesStorage Facilities
Part # 2Part # 2Grain Facility Library ApplicationGrain Facility Library Application
ByBy
Dr. LuDr. Luísís César da SilvaCésar da Silva
Modeling a Small Grain Facility
Modeling a Commercial Grain Facility
Type of Information Required
– Flowcharts of grain storage facilities; – Daily quantities of received products; – Monthly quantities of dispatched products;– Technical information about processing
machines, conveyors and structures;– Monthly electric energy consumption; and– Firewood consumption.
Example: Modeling of Grain Facility A(Technical Information)
Structure Quantity Static capacity (t)
Receiving PitWet Holding Bin
Flat StorageCell-01Cell-02 Cell-03
42
21
300300
5,0008,0005,000
Processing machines Quantity Hourly capacity (t/h)
Pre-CleanerDryer
Cleaner
314
408030
Conveyors Quantity Hourly capacity (t/h)
BeltTwo way belt
Bucket elevatorDrag conveyor
4172
120120120120
Example: Modeling of Grain Facility A(Flowchart)
PIT-04
WHP-01
M0-01
WHP-02
PIT-02
PIT-03
DB-02
SB-01 DB-04
FSCL-01
FSCL-02
FSCL-03
Flat Storage -18.000 t
SB-05
BK-01
BK-02
BK-03
DC-01
PC-01
PC-02
PC-03
BK-04 DR-01 BK-05 DC-02
CL-01
CL-01
CL-01
CL-01
SBD-03 BK-05 BK-07 DP-01
Direct Transference
BK-07 FMB-01Collected ForeignMaterial
Harvest Data – Facility ACorn – Summer
Corn - Winter
Total Quantities Daily Quantities
Out C.L. 12.7 %
Out
To tal Cor n Re ce ive d - Fir s t Har ve s t
02000400060008000
0 4 7 11 1418 2126 2933 3639 42
Daily Corn Arrivals - First Harvest
0
2 0 0
4 0 0
6 0 0
8 0 0
0 4 7 1 1 1 4 1 8 2 1 2 6 2 9 3 3 3 6 3 9 4 2
A c c u m u l a t e d D a y s - 0 1 / 2 2 / 9 9 t o 0 3 / 0 6 / 9 9
Total Corn Received -Second Harvest
02000400060008000
0 4 7 11 14 18 21 26 29 33 36 39 42
Daily Corn Arrivals - Second Harves t
0
2 0 0
4 0 0
6 0 0
8 0 0
1 0 0 0
0 5 1 0 1 6 2 1 2 6 3 1 3 6 4 1 4 6 5 1 5 6 6 1 6 6 7 2
A c c u m u l a t e d D a y s - 0 7 / 1 7 / 9 9 t o 0 9 / 3 0 / 9 9
Harvest Data – Facility A
Soybean
Wheat
Total Quantities Daily Quantities
Out C.L. 12.7 % Out C.L. = 0.8%
Out Out C.L. = 6.4 %
Total Soybean Received
0200004000060000
0 5 11 17 22 28 34 41 47 53 60M i 0
20004000
6000
0 5 11 17 22 28 34 41 47 53 60
tons
/ day
Daily Wheat Arrivals
0
200
400
600
0 4 8 12 16 20 24 28 32 36 40 45
Accumulated Days - 08/16/99 to 09/29/99
Met
ric T
ons/
Day
Total Wheat Received
0
1000
2000
3000
4000
5000
6000
0 3 6 9 12 15 18 21 24 27 30 33 36 39 43 46
A c c u m u l a t e d D a y s - 0 8 / 1 6 / 9 9 t o 0 9 / 2 9 / 9 9
Annual Harvest Seasons
Daily Grain Harvest
0
1000
2000
3000
4000
5000
6000
J J J J J F F F F M M M M A A A A A M M M M J J J J J J J J J A A A A S S S S
Year Days
Rec
evei
d to
ns/d
ay
Wheat Soybean Corn
Example: Modeling of Grain Facility A(Harvest and Electric Energy Consumption)
Total Quantities of Received Products- Corn-Summer: 43 days - 7,376 tonnes- Soybean: 63 days – 53 -179 tonnes- Corn-Winter: 75 days - 7,804 tonnes- Wheat: 44 days - 5,118 tonnes
Electric Energy Consumption- Total - On- Peak = 19,539 kWh Off-Peak 297,918 kWh- R$ 35,796.00 – US$ 21,056.47
Firewood Consumption- 1,890 m3 – R$ 26, 460.00 - US$ 15,564.70
Example: Modeling of Grain Facility A(Annual Dispatch Plan)
Month Stock portions to be dispatched (%)Corn Soybean Wheat
1 0 0 02 20.35 0 03 29.82 47.18 04 0.15 14.52 05 0 20.58 06 0 0.67 07 0 6.52 08 20.45 7.81 09 0.55 0.54 69.9610 0.55 0 011 7.03 1.32 012 21.10 0.86 30.04
Model of Grain Facility A
20 types of reporters
This is the full model of Grain Facility A, implemented according to flowchart and obtained data.
Model Reports Received Grain Stats
Model Reports Stored Grain Stats
Model Reports Truck Traffic
Receiving Sector Dispatch Sector
Model Reports Electric Energy Consumption
Model Reports Firewood Consumption – Warm drying air
End – Part # 2Grain Facility Library Application
Please feel free to contact me:
Dr. Luis Cesar da SilvaFederal University of Espírito Santo - UFESAgrarian Science Center - CCACP: #16 29.500-000 - Alegre - ES - Brazil Voice: +55 28 3552-8918 Fax : +55 28 3552-2622
E-mail: silvalc@agais.com or silvaluisc@yahoo.com
Website: www.agais.com
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