Formulate Min-Cost Shipping Problem with Solver e.g. CPLEX Gurobi Operations Research Optimization Algorithm

Keywords: Shipping Optimization, Inventory-Routing, Min-Cost, Multi-Sources, Mutli-Sinks

Dear Freelancer,

I am looking for a freelancer to formulate an optimization problem from the Liquefied Natural Gas (LNG) shipping industry mathematically and within a solver such as CPLEX.

Some details about the context:

In the world of LNG, the user of the model, has committed to several pick-up obligations and to several delivery obligations. On the pick-up side, the following information is available: the name of all the export terminals, where the user committed to pick-up cargo. The volume that he committed to pick-up at each terminal and a time frame within a year (e.g. week 10-14) when he committed to pick up the cargo. The same on the delivery side: name of each import terminal, delivery volume at each import terminal, and time-frame for delivery. The distance between each export terminal and each import terminal is given. Further, the user must specify the number of tankers available to him, the capacity of each tanker, the tanker's location and the time when the tanker is at that location. Moreover, the fuel consumption and the daily charter rate for the tanker are known.

The model should optimize and decide which cargo is to be picked-up by which tanker at which port in which order, to satisfy all pick-up and delivery obligations - while minimizing costs as the objective.

Some details about the problem:

- Objective function is to minimize costs. Costs = (distance * fuel consumption) + (distance/speed * daily charter rate) + canal passage fee.

- Multiple sources, each with volume for export in given time-frame

- Multiple sinks, each with volume for import in given time-frame

-> The user picks e.g. 5 export points, puts in how much volume needs to be picked-up at each port, and in which time-frame for pick-up. The user further specifies e.g. 4 import ports, how much needs to be delivered where and by which time frame. If the total export volume is not equal the total import volume, additional LNG volumes can be sourced from an artificial market source or to an artificial market sink.

- Each source is connected to each sink on an direct bi-directional edge. As for the route between the port of Doha, Qatar to Kochi, India, the choice of route is clear and therefore only one edge exists, for other routes (e.g. from Sabine Pass, USA to Yokohama, Japan) two or even more routes edges may exists to account for different routing alternatives such as the Panama Canal or the Suez Canal.

- To use an edge a ship must be in place at the source of this edge. The volume of transportation on the edge is limited to the total volume of the ships available at the source of the edge.

Surely, I forgot a few more details about the problem's constraints - however, you got an impression if you came through reading this far. Lets have a more detailed conversation if you are feeling confident that you can both formulate this problem mathematically and also to formulate it within a solver such as CPLEX.

In your offer, please indicate how you would engage/solve this problem!

Kemahiran: Algoritma, Combinatorial Optimization, Pengaturcaraan Linear, Operations Research, Shipping

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Tentang Majikan:
( 1 ulasan ) Oxford, United Kingdom

ID Projek: #20076319

13 pekerja bebas membida secara purata $520 untuk pekerjaan ini


Hi I'm an expert in linear programming. I'm sure that I can easily do this project. We can have a chat about it. Thanks..

$700 USD dalam 3 hari
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$250 USD dalam 3 hari
(13 Ulasan)

Hello I am an engineer in operational research and decision support I master Linear programming , dynamic programming , salesman problem , ... I can achieve this project using GAMS SOLVER , or LINDO OR lingo please Lagi

$500 USD dalam 10 hari
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Hello! I have briefly read the description on formulate-min-cost-shipping-problem development project, and I can deliver as per the requirements however I need us to discuss for more clarity on the details, d Lagi

$250 USD dalam 10 hari
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Dear employer, Hi I have solved many optimization problems already. Most complicated one was a problem about the USA election. I have solved many multi-objective optimization problems. I read your description com Lagi

$400 USD dalam 10 hari
(5 Ulasan)

Hi wintergreen develops more projects in optimization with constraints or multiobjective by using excel use matlab. if you wish which type of app you need ...as per your requirement our team give best and efficient re Lagi

$777 USD dalam 15 hari
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Hello. I have read your description and I am so interested in your project. I am confident in your project and I can finish it clearly on time. I am well experienced and PHD in mathematics. I have +15 years of experie Lagi

$500 USD dalam 7 hari
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Hello I am a manager of our AI research&development team which has the experience of 8++ year in this field. I have large interest in your idea for the delivery system. If you ping me, I will share our detailed profil Lagi

$1000 USD dalam 15 hari
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Hi. I am Mustafa Er and Industrial Engineer. I always interested in mathematical modelling. I had previously realized such a project through the Gams program. I wanna share my experiences Relevant Skills and Experienc Lagi

$333 USD dalam 5 hari
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Hi my name is Claudio I am new as freelancer career but I enjoy a lot of this optmization and mathematical modeling area, as well as recently I did a small experiment with CPLEX (12.9 - academic version.) for a trans Lagi

$600 USD dalam 15 hari
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Dear authorized, I am an industrial engineer. I am interested operations research. Now, I am studying a phd program with this relevant. I have good experience CPLEX, Lingo, Gurobi, GAMS, C++, MatLAB. I have been worked Lagi

$750 USD dalam 15 hari
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Greetings, in my opinion, this is a min-cost network design problem with the need of a MIP element. the multi-source/sink really isn't a problem if binary decision variables are implemented. I can write something up Lagi

$250 USD dalam 30 hari
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I have been in the field of Operations Research for about 40 years, doing models like my Undergraduate Thesis, and also in the Industry working with LP, ILP, Simulation. Besides I have been teaching Operations Research Lagi

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