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ABSTRACT: Different methods to calculate complex ventilation systems have been already presented in [1, 2, 3]. This paper will present some advantages in using special software to calculate and simulate a ventilation network. The simulations have been done with the Educational version of VENTSIM (up to 1,000 airways). Simulation of the branches including their aerodynamics parameters ha\'e been done in very simple steps, which will be presented here.
KEY WORDS: ventilation network model, VENTSIM, simulation, airways
1. INTRODUCTION
The ventilation network proposed to be simulated is showed in (figure 1). The figure presents the 3D-Version of a ventilation network. The air flow simulated in the base network, must comply with the model results with measurements of air flow, and that should be demonstrated with this simulation.
Manual application of iterative techniques for computing is possible, but requires a considerable amount of work. The main aspect to follow is that the engineers will focus their work in data correlation and optimization of the mine ventilation.
The analytical relation of the aerodynamic parameters has been well described in the used references.
The program is working with the direct application of the Hardy-Cross method. The full version of the VENTSIM software is capable to simulate a network up to 30,000 branches. To present the program and to simulate in an educational way, the 1,000 branches offered by the student version is more than sufficient to resolve the proposed problem.
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