Name: MARISA MATEDI ALVES
Publication date: 18/12/2019
Advisor:
Name |
Role |
|---|---|
| HELDER ROBERTO DE OLIVEIRA ROCHA | Advisor * |
Examining board:
| Name |
Role |
|---|---|
| HELDER ROBERTO DE OLIVEIRA ROCHA | Advisor * |
| JOSE LEANDRO FÉLIX SALLES | External Examiner * |
| JUSSARA FARIAS FARDIN | Internal Examiner * |
Summary: The Brazilian mining industry is of great importance for the country's economy, being responsible for a large part of exports and job creation. With the changes in the world economic scenario and crises that affected Brazil, there is a growing need to use technologies to guide planning and direct investments in improvements, so that companies can increase productivity and efficiency and become more competitive. In this way, it was proposed to develop a simulation model of discrete events for an integrated yard-port system, simplified, with the objective of assisting in the analysis of distribution of lots loaded with iron ore and pellets in the storage yard and in the berthing and loading of ships at the tactical level, aiming to show a constructive form of the modeling project, through a step-by-step in the creation of blocks for the implementation of simulators. The simulator deals with the transport of iron ore from the mine, through car dumpers, storage yard and port, adding pellets from the plants,
focusing on stacking, stocking, retrieving and loading products on ships in the berths. Arena software was used to implement the simulation model, in which it was possible to analyze the occupation of the yards, assess the occupation of available resources (car dumpers, plants, stackers, reclaimers, stack-reclaimers and ship loaders), collect queue data and number of ships, assess ship loading and raise stock turnover. The model developed considered data based on real values, for a simulation time of 120 days, five replications, four scenarios, which differ, basically, as to the frequency of arrival of the types of ships (panamax, capesize and valemax) and the berthing rules. The results
showed an occupancy of the car dumpers of 53%, occupation of the yard and plants around 80% and a stock turnover of stock, for each scenario, around 3.4 times. In addition, different ship loading strategies are proposed with the objective of increasing operational efficiency in the volume shipped, in the ship queue and others for the yardport system.
