THERMAL SCIENCE

International Scientific Journal

Miljan M. Stašević

,

Mirko S. Maksimović

,

Ivana V. Vasović Maksimović

,

Katarina S. Maksimović

,

Milenko S. Stašević

SOME ASPECTS OF DESIGN VENTILATION SYSTEM IN ROAD TUNNELS

ABSTRACT
In the base, working of ventilation system can be analyzed in regular and incidental modes of operation. This paper concerns the specification of the longitudinal ventilation necessary to prevent upstream movement of combustion products in a tunnel fire. In this work the objective of the study is to analyze the road way tunnel ventilation system using CFD software to create comfort ventilation system in the tunnel. The comfort ventilation concept refers to the situation when air quality within the tunnel is reduced due to presence of polluted air in the tunnel. This paper is focused on ventilation system in a road traffic tunnel in moment of accident situation as fire. In this investigation numerical simulation of fire was carried out and determination of a critical air velocity depending on the power of the fire was conducted. The output results of the software developed for this purpose, which is also used in the realization of practical projects, are shown.
KEYWORDS
road tunnel, ventilation, CFD modelling, fire, smoke control
PAPER SUBMITTED: 2021-09-09
PAPER REVISED: 2022-04-02
PAPER ACCEPTED: 2022-04-16
PUBLISHED ONLINE: 2022-05-22
DOI REFERENCE: https://doi.org/10.2298/TSCI210909053S
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2022, VOLUME 26, ISSUE Issue 4, PAGES [3587 - 3596]
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Some aspects of design ventilation system in road tunnels

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence