TY  - JOUR
N2  - Dispersion of fuel gases in air is very rapid during accidental release which can lead to minor asphyxiate to major explosion. Leakage of fuel gases poses an unseen threat due to odourless and colourless properties of gas components. A complete understanding of fuel gases mixing behaviours with air is very crucial to develop prevention or mitigation guidelines towards major accident. Various fuel gases transient dispersion behaviours are simulated by using computational fluid dynamics in simple geometries. Transient dispersion behaviour and flammability limits of major fuel gases, which include methane, hydrogen, ethane, propane, carbon monoxide and acetylene are simulated in 2D closed and open-top geometries. Formation of flammability region is predicted and compared for each component of fuel gas in the range of higher and lower flammability limits. It is found that dispersion rate of gases is considerably effected by the density difference between air and fuel gas. Spatial and temporal distributions of fuel gases are compared in closed and open-top geometries. Copyright © 2015, AIDIC Servizi S.r.l.,.
KW  - Carbon; Carbon monoxide; Computational fluid dynamics; Dispersions; Flammability; Fuels; Gases; Geometry; Mixing
KW  -  Accidental release; CFD simulations; Density difference; Flammability limits; Lower flammability limits; Mitigation guidelines; Simple geometries; Spatial and temporal distribution
KW  -  Density of gases
ID  - scholars5690
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84946144244&doi=10.3303%2fCET1545321&partnerID=40&md5=cdbe9c7ef0c9e8b00ad2c0c0916dd93a
JF  - Chemical Engineering Transactions
A1  - Pendyala, R.
A1  - Yong, J.
A1  - Azman, I.A.
A1  - Ilyas, S.U.
VL  - 45
Y1  - 2015///
N1  - cited By 1
TI  - CFD simulations of transient fuel gases mixing, leakage and flammability in air
SP  - 1921
AV  - none
EP  - 1926
SN  - 22839216
PB  - Italian Association of Chemical Engineering - AIDIC
ER  -