Fire dynamics simulator (version 5) :

McGrattan, Kevin B.; Hostikka, Simo; Floyd, Jason; Baum, Howard R.; Rehm, Ronald G.

doi:10.6028/nist.sp.1018-5

Cited by 136 publications

(92 citation statements)

References 43 publications

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“…In mass transfer equation (7), Y g is the vapor mass fraction of the gas obtained from the gas phase mass conservation equations and Y l is the liquid equilibrium vapor mass fraction obtained from the Clausius-Clapeyron equation [10]. Mass and heat transfer between liquid and gas are described with analogous empirical correlations.…”

Section: Vaporization Modelmentioning

confidence: 99%

The Effect of Water Mist Droplet Size and Nozzle Flow Rate on Fire Extinction in Hanger by Using FDS

AbdRabbo¹,

Ayoub²

2016

J Civil Environ Eng

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Water is playing a vital role and widely used in our life. The use of water for fire extinction and extinguishment is widespread because of the following reasons. The first is economic. A second reason is that many fire safety. Fire suppression by using water mist is widely considered to be an alternative to gaseous fire suppression agents. A lot of commercial activity has occurred in the last years to develop technology for fire suppression systems based on water mist. The objective of this paper is to investigate the effectiveness of water mist with various droplet sizes and various nozzle flow rate on fire suppression in hanger, taking into account extinguishing time, gas concentration, and temperature decay. Three nozzle flow rate with the same conditions were employed and different droplet size provided. It was found that the extinguishing time decreases with the droplet size decrease and flow rate increase. The temperature decay rate was improved by decreasing the droplet diameter or increasing the flow rate. In addition, with an increase in the extinguishing time, the concentration of O 2 decreased while CO 2 increased. The study is carried out using Fire dynamic simulator (FDS) combined with PYROSIM and SMOKEVIEW programs. These programs, to achieve the model of compartment fire scenario require investigating and determining temperature and gas concentration.

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Section: Vaporization Modelmentioning

confidence: 99%

The Effect of Water Mist Droplet Size and Nozzle Flow Rate on Fire Extinction in Hanger by Using FDS

AbdRabbo¹,

Ayoub²

2016

J Civil Environ Eng

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“…importing pre-computed time-series of fire products, according to different methods for calculating fire growth and smoke spread in multiple compartments; see, e.g., [24], [25], setting time of fire explosion before, simultaneously or after the evacuation starting time, modeling the influence of fire products on the behavioral model of agents with the aid of an algorithm, whose pseudo-code is outlined in Table 2, visualizing the fire products in the synthetic world.…”

Section: Model Omissions and Restrictive Assumptions That Imply The mentioning

confidence: 99%

VELOS: A VR platform for ship-evacuation analysis

Ginnis

Κώστας

Politis

et al. 2010

Computer-Aided Design

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"Virtual Environment for Life On Ships" (VELOS) is a multi-user Virtual Reality(VR) system that aims to support designers to assess (early in the design process) passenger and crew activities on a ship for both normal and hectic conditions of operations and to improve ship design accordingly. This paper focuses on presenting the novel features of VELOS related to both its VR and evacuation-specific functionalities. These features include: i) capability of multiple users' immersion and active participation in the evacuation process, ii) real-time interactivity and capability for making on-the-fly alterations of environment events and crowd-behavior parameters, iii) capability of agents and avatars to move continuously on decks, iv) integrated framework for both the simplified and the advanced method of analysis according to the IMO/MSC 1033 Circular, v) enrichment of the ship geometrical model with a topological model suitable for evacuation analysis, vi) efficient interfaces for the dynamic specifi-* Manuscript (2nd REVISION) 2 cation and handling of the required heterogeneous input data, and vii) post processing of the calculated agent trajectories for extracting useful information for the evacuation process. VELOS evacuation functionality is illustrated using three evacuation test cases for a ro-ro passenger ship.

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“…This will add to the portfolio of validation exercises already in existence and help improve the use of computer models for predicting behaviour of fires, and thus highlight whether there is a need to further clarify if the real properties are directly usable as inputs for these kind of models [4,5].…”

Section: Introductionmentioning

confidence: 99%

“…A range of empirical formulations based on experimental data obtained from the cone calorimeter or furniture calorimeter tests, to semiempirical models [1][2][3] that consider transient heat conduction, to comprehensive models [4,5] based on advanced descriptions of the in-solid heat and mass transfer processes, have been developed. Comprehensive pyrolysis models adopt a material science perspective, and describe the heat-driven physical-chemical transformation of the virgin solid into solid, liquid and gaseous products.…”

Section: Introductionmentioning

confidence: 99%

Pyrolysis Characterization of a Lineal Low Density Polyethylene

Capote¹,

Alvear²,

Abreu³

et al. 2011

Fire Safety Science - Proceedings of the 10th International Sym

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A set of parameters for pyrolysis characterization of linear low density polyethylene (LLDPE) were chosen to measure its combustion behaviour. Two kinds of parameters were selected, material and reaction. The material parameters were: effective values of the mass density (ρ); specific heat capacity (c); thermal conductivity (k); absorption coefficient (қ) and emissivity (ε). The reaction parameters were the exponential factor (Z), the energy of activation (Ε) and the reaction mechanism f(α). In addition simultaneous thermal analysis (STA) tests were carried out at heating rates of 2, 5 and 10 K/min in N 2 atmosphere to obtain the kinetic triplet and cone calorimeter tests at irradiance levels of 25, 40, 50 and 75 kW/m 2 to compare the simulated mass loss rate against real mass loss rate. Finally the cone calorimeter tests were used as input values to optimize the parameter set to perform real mass loss rate.

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Fire dynamics simulator (version 5) :

Cited by 136 publications

References 43 publications

The Effect of Water Mist Droplet Size and Nozzle Flow Rate on Fire Extinction in Hanger by Using FDS

The Effect of Water Mist Droplet Size and Nozzle Flow Rate on Fire Extinction in Hanger by Using FDS

VELOS: A VR platform for ship-evacuation analysis

Pyrolysis Characterization of a Lineal Low Density Polyethylene

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