Characteristics of Toxic Gas Leakages with Change in Duration

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F21%3A00542482" target="_blank" >RIV/61388998:_____/21:00542482 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11320/21:10424260

Result on the web

<a href="https://www.mdpi.com/2073-4433/12/1/88" target="_blank" >https://www.mdpi.com/2073-4433/12/1/88</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/atmos12010088" target="_blank" >10.3390/atmos12010088</a>

Result language

angličtina

Original language name

Characteristics of Toxic Gas Leakages with Change in Duration

Original language description

One of the emergencies rescue crews have to face is toxic gas leakages. The characteristics of the gas leakages differ with regard to their leakage duration. Long-term releases have plume-like behaviors that can be described by utilizing mean concentrations at individual exposed locations. In contrast, ensemble statistics of individual cloud characteristics are needed for short-term releases with puff-like behaviors to ensure fully aware risk assessment. The reason is that the time evolution of the concentration of short-term gas releases can differ wildly under the same mean ambient and leakage conditions. The duration from which the release can be classified as plume-like can be found only by studying the releases of different durations, which is the main aim of this paper. To investigate gas releases of different durations, wind tunnel experiments of gas releases in an idealized urban area were conducted. The results present a new method by which concentration signals of releases can be divided into three cloud phases: the arrival, the central and the departure cloud phase. The characteristics (e.g., lengths, mean concentrations) of the individual cloud phases are explored. The results indicate that the finite-duration releases for which the central cloud phase exists have the plume-like behavior for this cloud part.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10509 - Meteorology and atmospheric sciences

Project

<a href="/en/project/TJ04000365" target="_blank" >TJ04000365: Emergency dispersion model for toxic gases</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Atmosphere

ISSN

2073-4433

e-ISSN

2073-4433

Volume of the periodical

12

Issue of the periodical within the volume

1

Country of publishing house

CH - SWITZERLAND

Number of pages

13

Pages from-to

88

UT code for WoS article

000611161000001

EID of the result in the Scopus database

2-s2.0-85112251308