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COMPARATIVE SOLVING OF A VENTILATION NETWORK AND ITS VALIDATED RESULTS

F. Radoi, C. Boanta, N. Ianc, A. Matei, M. Prodan
Thursday 11 October 2018 by Libadmin2018

ABSTRACT

Applying iterative techniques to relatively simple ventilation networks, involves a considerable volume of mathematical calculations. For systems encountered in practice, the iterative methods become impracticable if the repeated calculations are to be performed manually. Computers can provide help in calculating mesh correction factors, respectively in calculating the branch flow rates. However, the number of iterations to be applied, along with organizational arrangements for mesh selection and network upgrading, also require an extremely laborious workload.
Simulation of mining networks has become widespread in the mining industry. There are a number of computer programs for analysing ventilation networks that are currently used to design, analyse and to operate ventilation systems. Most of these ventilation programs have a graphical representation of the ventilation network and related quantities, such as branch air leaks, the ventilator characteristics, heat transfer calculation, natural ventilation, etc. In addition, most of these include simulated gas movements as well as simulations for modified conditions such as fire or explosion, although they are usually stable models.
In this paper, the modeling and solving of the Paroşeni mine’s ventilation network will be carried out with the help of two specialized 3D-Canvent and VentSim Visual Advanced programs, followed by the validation of the obtained results.

Keywords: ventilation, specialized programs, solving, validation.


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