Simulação do processo de produção de uma indústria de água mineral pelo método system dynamics
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2010-04-03
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Universidade Federal de Goiás
Resumo
The processing of mineral water is characterized by a system composed of step sequences,
input variables, parameters and output variables. Thus, this work was conducted with the
objective of implementing a computer model to simulate the steps that comprise the
operational flowchart of a mineral water industry, using the software Stella 8.0. The model
defined as dynamic, stochastic and discrete consisted of eleven interconnected blocks. It was
built following the steps of characterizing the real system, creating the conceptual model,
structuring and verification of computational model, data collection, and model validation.
From data collected in the real system we obtained fits of the distributions used in assembling
and verifying the model with the help of the @ risk 5.5 program. Validation of the program
was conducted by comparing the data (number of bottles to be processed and total processing
time) of the real system with simulated data, using regression analysis and the program
Statistic 6.0 (Statsoft). The values collected in the real system were within the upper and
lower limits on the graph obtained by regression analysis, with a confidence level of 95%,
ensuring that the computer model adequately represents the real system. Fails in the process
were identified by analyzing of collected values needed more processing time than the
simulated values, for the same amount of bottles. However, the computational model
developed is appliable to simulate the dynamics of processing lines of Mineral Water, being a
tool of production control, which allows the visualization of the behavior of the real system,
facilitates the identification of errors, improve production flow, and reduces manufacturing
costs by controlling the total processing time.
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SILVA, G. L. P. Simulação do processo de produção de uma indústria de água mineral pelo método system dynamics. 2010. 62 f. Dissertação (Mestrado em Ciência e Tecnologia de Alimentos) - Universidade Federal de Goiás, Goiânia, 2010.