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Effect of carbon dioxide (CO2) suppression on explosive limits of methane / Mohd Hafizul Md Jais

By:

Mohd Hafizul Md Jais

Material type: Text

TextPublication details: Kuantan, Pahang : UMP, 2010Description: xvii, 51 p. : ill. (some col.) ; 30 cm. + 1 CD-ROMISBN:

THE0004284(Local)

Subject(s):

Dissertation note: Project paper (Bachelor of Chemical Engineering (Gas Technology)) -- Universiti Malaysia Pahang - 2010 Abstract: Theoretical models to predict the upper/lower explosive limits of a mixture composed of hydrocarbon and inert carbon dioxide (CO2) are proposed in this study. It is found theoretically that there are linear relations between the reciprocal of the upper/lower flammability limits and the reciprocal of the molar fraction of hydrocarbon in the hydrocarbon/inert gas mixture. These theoretical linear relations are examined by existing experimental results reported in the literature, which include the cases of methane. The experiments were performed in a 20 L closed explosion vessel. The mixtures were ignited by using spark permanent wire that placed at the centre of the vessel. Inthis study, the result shows the lower explosive limits (LEL) and upper explosive limits (UEL) is from 5 vol% to 20vol% of methane (CH4) and have revealed that the addition of suppression agent as 5 vol% and 10 vol% carbon dioxide (CO2) in methane extends the lower LEL and UEL initially 9 vol% to 18 vol% and 3 vol% to 16 vol%.

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Holdings ( 2 )
Title notes ( 3 )

Holdings
Item type	Current library	Call number	Copy number	Status	Date due	Barcode
Final Year Report	UMPLIB GAMBANG	TP242 .H34 2010 rs Bc. (Browse shelf(Opens below))	1	Not for loan		0000063184
Final Year Report	UMPLIB GAMBANG	CD 5866 \| TP242 .H34 2010 rs Bc. (Browse shelf(Opens below))	1	In Transit		0000063185

Project paper (Bachelor of Chemical Engineering (Gas Technology)) -- Universiti Malaysia Pahang - 2010

Bibliography : p. 37-38

Theoretical models to predict the upper/lower explosive limits of a mixture composed of hydrocarbon and inert carbon dioxide (CO2) are proposed in this study. It is found theoretically that there are linear relations between the reciprocal of the upper/lower flammability limits and the reciprocal of the molar fraction of hydrocarbon in the hydrocarbon/inert gas mixture. These theoretical linear relations are examined by existing experimental results reported in the literature, which include the cases of methane. The experiments were performed in a 20 L closed explosion vessel. The mixtures were ignited by using spark permanent wire that placed at the centre of the vessel. Inthis study, the result shows the lower explosive limits (LEL) and upper explosive limits (UEL) is from 5 vol% to 20vol% of methane (CH4) and have revealed that the addition of suppression agent as 5 vol% and 10 vol% carbon dioxide (CO2) in methane extends the lower LEL and UEL initially 9 vol% to 18 vol% and 3 vol% to 16 vol%.