Inventory Ship Routing and Cargo Stowage Planning on Chemical Tankers
Chemical tankers are a type of ocean carrier with multi-compartments to simultaneously carry various liquid chemicals in bulk and prevent their mixing. This paper discusses the difficulties chemical tanker managers experience when planning vessel routes and scheduling inventory maintenance becau...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Universitas Indonesia
2022-04-01
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| Series: | International Journal of Technology |
| Subjects: | |
| Online Access: | https://ijtech.eng.ui.ac.id/article/view/4757 |
| Summary: | Chemical tankers are a
type of ocean carrier with multi-compartments to simultaneously carry various
liquid chemicals in bulk and prevent their mixing. This paper discusses the
difficulties chemical tanker managers experience when planning vessel routes
and scheduling inventory maintenance because of chemical tankers’ unique
characteristics and operational constraints. To date, no models have addressed
chemical tankers’ inventory routing and scheduling needs while accounting for
these challenges. Bridging the research gap, we propose a novel, integrated,
mathematical model of inventory ship routing and stowage planning problem
(ISRSPP) for chemical tankers. We seek to combine stowage planning, which is an
operational problem, with inventory ship routing, which is a tactical problem,
through integrated tactical planning. Our objective is to propose a solution
with minimal total voyage costs. For this purpose, we formulate our problem in
a mixed integer linear program. We build two scenarios to analyze the models
applicability and performance, and we solve both of them using a commercial
solver. Our results confirm that the stowage planning problem cannot be
separated from the inventory ship routing problem for chemical tankers because
such a separation could lead to fleet routes for which no feasible stowage plan
is possible. |
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| ISSN: | 2086-9614 2087-2100 |