ดาวน์โหลด All Proceeding - AS Nida

Objective Function
The purpose of this problem is the minimum distance.
Equation of restrictions (Constrains)
Each day i have volume of product x type j which contains
products from location k to warehouse n must not exceed the amount of
warehouse capacity.
Each day i have volume of product x type j which contains
products from location k to warehouse n must have volume equal of
warehouse V capacity.
2.4.2 Simulation Programming
The research also study by the Arena’s simulation method.
The value to the start of used in the simulation by collected the
appropriate amount of data and tested their distribution before using.
The results prepare the alternative 4 options as follows:
Table 2 options for improving warehouse
Detail
Option 1 Require to store in a warehouse with a short distance before it
was full, Using diesel B5 fuel Folk Lift.
Option 2 Build a new warehouse 5 at the storage capacity of 1500 tons.
Using diesel B5 fuel Folk Lift.
Option 3 Require to store in a warehouse with a short distance before it
was full, The Folk Lift installs LPG gas.
Option 4 Build a new warehouse near warehouse 5 at the storage capacity
of 1500 tons. The Folk Lift installs LPG gas.
Figure 2 Arena’s Model shows the location of the storage area
Figure 2 Arena’s Model shows the location of the storage
area of the product that starting from the packed location on each
production line. The simulation in this model set the program to select
(1)
(2)
(3)
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stores in the warehouse with the shortest distance first. Then, consider
the storage capacity for fill up. If the storage capacity in the shortest
distance was full, the next warehouses will be selected
3. Results
3.1 Linear Programming Result
Figure 3 Graph comparing the distance of storage
From the graph comparing the distance of storage shows that
the new linear program, the total distance to stock area was reduced
from the existing as following: January 662,196 meters, February
766,860 meters, March 980,731 meters, April and May 592,999 meters.
The calculation of shipping used only one way transport. Equipment
was folk lift truck with the consumption rate is 3 miles per liter of fuel
is diesel B 5, or 1 km fuel consumption 12.01 baht (including
consumption and maintenance forklift).
3.2 Simulation Programming Result
Table 3 Resources consumption change of each option
Option
Linear
Programming
Option 1
(Simulation)
Option 2
(Simulation)
Option 3
(Simulation)
Resources consumption change of each option
Decrease Increase
Distance running of the truck decreased
3,586,302 meters, fuel decreased
-
43,071.49 baht
Distance running of the truck decreased
7,548,800 meters, fuel decreased
-
90,661.14 baht
Building a new warehouse 5 at the storage
capacity of 1500 tons
Increased 3LPG forklift (New installation
only
Distance running of
the truck decreased
8,963,350 meters,
fuel decreased
107,974.09 baht
Distance running of
the truck decreased
7,548,800 meters, fuel
decreased 98,723.45
baht