A thermal theory for estimating the flammability limits of a mixture

2011 ◽  
Vol 46 (8) ◽  
pp. 558-567 ◽  
Author(s):  
Tingguang Ma
Keyword(s):  
Flammability Limits ◽  
Thermal Theory

The thermal theory based equation for correlation between temperature and flammability limits of hydrocarbons

Fuel ◽  
2018 ◽  
Vol 214 ◽  
pp. 55-62 ◽  
Author(s):  
Mingqiang Wu ◽  
Gequn Shu ◽  
Hua Tian ◽  
Xueying Wang ◽  
Yuewei Liu
Keyword(s):  
Flammability Limits ◽  
Thermal Theory

The flammability limits and explosion behaviours of hydrogen-enriched methane-air mixtures

2021 ◽  
Vol 126 ◽  
pp. 110395
Author(s):  
Qiangqiang Hao ◽  
Zhenmin Luo ◽  
Tao Wang ◽  
Chao Xie ◽  
Siqi Zhang ◽  
...  
Keyword(s):  
Flammability Limits

Computed Flammability Limits of Opposed-Jet H/O/CO Diffusion Flames at Low Pressure

1999 ◽  
Vol 15 (6) ◽  
pp. 903-908 ◽  
Author(s):  
Hsin-Yi Shih ◽  
Hasan Bedir ◽  
James S. T’ien ◽  
Chih-Jen Sung
Keyword(s):  
Diffusion Flames ◽  
Low Pressure ◽  
Flammability Limits ◽  
Opposed Jet

Quantitative Risk Analysis and Comparison for Onshore and Offshore LNG Terminals: The Port of Suape - Brazil Case

2011 ◽  
Author(s):  
Marilia A. Ramos ◽  
Enrique L. Droguett ◽  
Marcelo R. Martins ◽  
Henrique P. Souza
Keyword(s):  
Natural Gas ◽  
Original Form ◽  
Pipeline System ◽  
Industrial Complex ◽  
Flammability Limits ◽  
Liquid Form ◽  
Worst Case ◽  
Final Destination ◽  
Natural Gas Pipeline ◽  
Vapor Cloud

In recent decades, natural gas has been gaining importance in world energy scene and established itself as an important source of energy. One of the biggest obstacles to increase the usage of natural gas is its transportation, mostly done in its liquid form, LNG – Liquefied Natural Gas, and storage. It involves the liquefaction of natural gas, transport by ship, its storage and subsequent regasification, in order to get natural gas in its original form and send it to the final destination through natural gas pipeline system. Nowadays, most terminals for receiving, storing and regasificating LNG, as well as sending-out natural gas are built onshore. These terminals, however, are normally built close to populated areas, where consuming centers can be found, creating safety risks to the population nearby. Apart from possible damages caused by its cryogenic temperatures, LNG spills are associated with hazards such as pool fires and ignition of drifting vapor clouds. Alternatively to onshore terminals, there are currently several offshore terminals projects in the world and some are already running. Today, Brazil owns two FSRU (Floating Storage and Regasification Unit) type offshore terminals, one in Guanabara Bay, Rio de Janeiro and the other in Pece´m, Ceara´, both contracted to PETROBRAS. The identification of the operation risks sources of LNG terminals onshore and offshore and its quantification through mathematical models can identify the most suitable terminal type for a particular location. In order to identify and compare the risks suggested by onshore and offshore LNG terminals, we have taken the example of the Suape Port and its Industrial Complex, located in Pernambuco, Brazil, which is a promising location for the installation of a LNG terminal. The present work has focused on calculating the distance to the LNG vapor cloud with the lower flammability limits (LFL), as well as thermal radiation emitted by pool fire, in case of a LNG spill from an onshore and from an offshore terminal. The calculation was made for both day and night periods, and for three types of events: operational accident, non-operational accident and worst case event, corresponding to a hole size of 0,75m, 1,5m e 5m, respectively. Even though the accidents that happen at an onshore terminal generate smaller vulnerability distances, according to the results it would not be desirable for the Suape Port, due to the location high density of industries and people working. Therefore, an offshore terminal would be more desirable, since it presents less risk to the surrounding populations, as well as for workers in this location.

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