Modelos de simulação para análise e apoio à decisão nos processos de corte mecanizado, carregamento e transporte no agronegócio da cana-de-açúcar
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Data
2009-07-08
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Universidade Federal de Goiás
Resumo
In the current days sugarcane occupies an area of approximately 10,5 % of all
the Brazilian agricultural land, with an estimated production for the 2008/2009
crop of 528 million t. In the sugarcane production process, the harvest highlights
due its high costs, representing approximately 35% of the sugarcane production
costs, besides the addition of operational difficulties. In search of solutions that
can efficiently coordinate the mechanical cutting, loading and transportation
process of sugarcane (STC), the methodology of systems simulations can be
applied as a management tool for those processes. This dissertation has the
objective of analyzing the technical feasibility of using computer simulation to
increase the efficiency of sugarcane delivery, from the harvest to the
sucroalcooleira industry. This research was based on the analysis of the
following topics: a) computer simulation in agricultural production systems, b)
sugarcane mechanized harvest; besides a step based on an empiric and
descriptive dissertation part, which was developed with the association of the
Jalles Machado Company. It was proposed a computational model, developed
on the Stella Software, which allocated the following variables: a) operation
filling time, b) operation travel time, c) semi-trailer filling time, d) operation travel
time, e) operation transfer time, f) semi-trailer displacement time, g) lock and
unlock time, h) time spent in the balance, i) Time spent from displacement to
sampling, j) sampling time, k) time to displace to the hyllo , l) toppling time, m)
sugarcane weighing on the semi-trailer, n) trucks speed, o) harvesters speed, p)
harvesters efficiency, q) sugarcane productivity. Based on the developed
models and the simulations performed it can be concluded the sugarcane
harvest has a great importance on the sugarcane agribusiness, due the big
amount of equipment to be administered, the high costs of the process and to
be fundamental to maintain constantly the derivatives productions, such as
alcohol, sugar and energy. Therefore, the use of computer simulation has
shown to be a very important tool to increase the sugar cane delivery efficiency
from the mechanized harvest to the sucroalcooleira industry, allowing testing
and supporting decisions on this process management.
Descrição
Citação
BASTOS, Kamyro Jorge José Zaccaria. Simulation models for analysis and decision support in the processes of cutting, loading and transport in the agribusiness of cane sugar. 2009. 108 f. Dissertação (Mestrado em Ciências Agrárias) - Universidade Federal de Goiás, Goiânia, 2009.