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Safety
Special Issues
Fire Safety
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Fire Safety

A special issue of Safety (ISSN 2313-576X).

Deadline for manuscript submissions: closed (15 October 2016) | Viewed by 8538

Special Issue Editor

Prof. Dr. Kuang-Chung Tsai

E-Mail Website
Guest Editor
Department of Safety, Health and Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City 824, Taiwan
Interests: fire safety engineering; building codes; investigation of fire accidents
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Fire safety community continues to face challenges in fire safety research and design although significant progress has been made over the last several decades. This challenge comes from the complexity associated with high, long, and deep infrastructures, including high rise buildings, long tunnels, underground spaces, from toxic and high fire-load materials used in industry and residence, from integration with green building objectives, etc.

Simultaneously, fire safety design benefits from progressive understanding of fire physics and chemistry, human behavior, structural fire performance, from great capability in numerical simulation and from novel concepts in performance-based design methods, etc. This Special Issue will focus on all of fire safety aspects. Researchers can submit papers dealing with any aspect related to fire safety.

Prof. Dr. Kuang-Chung Tsai
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Safety is an international peer-reviewed open access quarterly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Fire safety engineering
  • fire dynamics
  • human behavior
  • structural fire performance
  • fire toxicity
  • performance based fire design
  • fire risk assessment

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Published Papers (1 paper)

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Research

7783 KiB  
Article
Design of a Pressurized Smokeproof Enclosure: CFD Analysis and Experimental Tests
by Giordana Gai and Piergiacomo Cancelliere
Safety 2017, 3(2), 13; https://doi.org/10.3390/safety3020013 - 23 Mar 2017
Cited by 6 | Viewed by 7832
Abstract
Pressure differential systems have the purpose of maintaining tenable conditions in protected spaces for different types of building safe places, like escape routes, firefighting access routes, lobbies, stairwells and refuge areas. The aim of pressure differential systems is to establish airflow paths from [...] Read more.
Pressure differential systems have the purpose of maintaining tenable conditions in protected spaces for different types of building safe places, like escape routes, firefighting access routes, lobbies, stairwells and refuge areas. The aim of pressure differential systems is to establish airflow paths from protected spaces at high pressure to spaces at lower or ambient pressure, preventing the spread of toxic gas released during a fire. This strategy ought to be supported by a detailed design of the necessary air supply, considering also the cycle of opening and closing doors during the egress phase. The paper deals with the design of a simple pressure differential system intended to be used in a building as a pressurized smokeproof enclosure. Specifically, experimental tests and numerical modelling are conducted with the objective of characterizing the pressure evolution in a small compartment under different conditions and through a cycle of door opening. Experimental tests are conducted in a simple 3-m side cubic enclosure with two doors and no vent openings. While a centrifugal fan blows constant airflow inside the structure, the pressure trend in time is recorded during steady state and transient conditions; additionally, the velocity of the airflow across the doors has been measured by means of an anemometer. Numerical CFD (computational fluid dynamics) simulations are carried out to reproduce the same smokeproof enclosure configuration (both geometrical and boundary conditions) using the fire dynamics simulator (FDS). Furthermore, specific attention is paid to the modelling of the leakage across the doors, directly inserted in the model through a localized HVAC (heating and venting air conditioning) advanced leakage function. Comparisons between experimental tests and numerical simulations are provided. Once the model was correctly calibrated, other geometrical and mechanical configurations have been studied, looking for convenient and efficient positions of the fan in order to fulfill the requirements of the pressure differential, airflow velocity and door handle force. The paper highlights some fundamental aspects on the pressurization and depressurization during steady state and transient phases, trying to identify if there are airflow profiles typical of some geometrical configurations. Full article
(This article belongs to the Special Issue Fire Safety)
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