LNG carrier - Revision history

Jmdonev: 1 revision imported: Doing upload, largely of old redirects.

2018-06-04T16:52:21Z

1 revision imported: Doing upload, largely of old redirects.

← Older revision	Revision as of 16:52, 4 June 2018
(No difference)

Jmdonev at 22:55, 31 May 2018

2018-05-31T22:55:03Z

← Older revision		Revision as of 22:55, 31 May 2018
Line 1:		Line 1:
	[[Category:Done ~~2015~~-06-11]]		[[Category:Done 2018-06-01]]
	[[File:640px-LNG_carrier_Alto_Acrux_-_4_May_2013.jpg\|400px\|framed\|Figure 1. LNG carrier. Note the size of the LNG ship compared to the size of the one to the right of it, the LNG ship is enormous!<ref>Wikimedia Commons. (June 8, 2015). ''LNG carrier Alto Acrux'' [Online]. Available: http://commons.wikimedia.org/wiki/File:LNG_carrier_Alto_Acrux_-_4_May_2013.jpg#/media/File:LNG_carrier_Alto_Acrux_-_4_May_2013.jpg</ref>]]		[[File:640px-LNG_carrier_Alto_Acrux_-_4_May_2013.jpg\|400px\|framed\|Figure 1. LNG carrier. Note the size of the LNG ship compared to the size of the one to the right of it, the LNG ship is enormous!<ref>Wikimedia Commons. (June 8, 2015). ''LNG carrier Alto Acrux'' [Online]. Available: http://commons.wikimedia.org/wiki/File:LNG_carrier_Alto_Acrux_-_4_May_2013.jpg#/media/File:LNG_carrier_Alto_Acrux_-_4_May_2013.jpg</ref>]]

	<onlyinclude>An '''LNG carrier''' is a ship that is designed for the transport of [[liquefied natural gas]] in its chilled tanks. Worldwide there are around ~~359~~ of these advanced, specialized vessels that are used specifically for the [[transportation\|transport]] of liquefied natural gas.</onlyinclude><ref name="RE1">Discovery LNG. (June 3, 2015). ''Shipping and Transport'' [Online]. Available: http://www.discoverylng.com/safety/shipping/</ref> Compared to conventional vessels, LNG carriers release less [[greenhouse gas emission]]s because of their [[natural gas]]-fueled propulsion system.		<onlyinclude>A '''LNG carrier''' is a ship that is designed for the transport of [[liquefied natural gas]] in its chilled tanks. Worldwide there are around 360 of these advanced, specialized vessels that are used specifically for the [[transportation\|transport]] of liquefied natural gas.</onlyinclude><ref name="RE1">Discovery LNG. (June 3, 2015). ''Shipping and Transport'' [Online]. Available: http://www.discoverylng.com/safety/shipping/</ref> Compared to conventional vessels, LNG carriers release less [[greenhouse gas emission]]s because of their [[natural gas]]-fueled propulsion system.

	Since the gas is transported in its [[liquid]] form and because of their physical properties, they are transported either at [[pressure]]s much greater than [[atm\|atmospheric pressures]] or at very low [[temperature]]s or some combination of the two. Therefore the ships can be classified as:<ref name=ref3>Liquefied Gas Carrier. (June 3, 2015). ''Principle type and design characteristics of modern liquefied gas carriers'' [Online]. Available: http://www.liquefiedgascarrier.com/type-of-gas-carrier.html</ref>		Since the gas is transported in its [[liquid]] form and because of their physical properties, they are transported either at [[pressure]]s much greater than [[atm\|atmospheric pressures]], at very low [[temperature]]s, or some combination of the two. Therefore, the ships can be classified as:<ref name=ref3>Liquefied Gas Carrier. (June 3, 2015). ''Principle type and design characteristics of modern liquefied gas carriers'' [Online]. Available: http://www.liquefiedgascarrier.com/type-of-gas-carrier.html</ref>

	# Fully pressurized		# Fully pressurized
Line 10:		Line 10:
	# Fully refrigerated		# Fully refrigerated

	~~As well~~, gas carriers can be categorized based on the hazard level of the material being transported:<ref name=ref3/>		In addition, gas carriers can be categorized based on the hazard level of the material being transported:<ref name=ref3/>

	# '''Type 1G''': Designed to carry the most hazardous cargo		# '''Type 1G''': Designed to carry the most hazardous cargo
Line 23:		Line 23:
	[[File:LNGtanker.jpg\|400px\|framed\|center\|Figure 2. Cartoon showing different components of an LNG carrier.<ref>Wikimedia Commons. (June 2, 2015). ''LNGtanker'' [Online]. Available: http://en.wikipedia.org/wiki/File:LNGtanker.jpg#/media/File:LNGtanker.jpg</ref>]]		[[File:LNGtanker.jpg\|400px\|framed\|center\|Figure 2. Cartoon showing different components of an LNG carrier.<ref>Wikimedia Commons. (June 2, 2015). ''LNGtanker'' [Online]. Available: http://en.wikipedia.org/wiki/File:LNGtanker.jpg#/media/File:LNGtanker.jpg</ref>]]

	In addition to these ships being advanced in the way that they hold the LNG, they are also equipped with advanced gas and fire detection and suppression systems to ensure that even a small leak would trigger a response.<ref name="RE1"/> This makes a catastrophic fire on an LNG ~~carriers~~ extraordinarily unlikely.		In addition to these ships being advanced in the way that they hold the LNG, they are also equipped with advanced gas and fire detection and suppression systems to ensure that even a small leak would trigger a response.<ref name="RE1"/> This makes a catastrophic fire on a LNG carrier extraordinarily unlikely.

			==For Further Reading==
			*[[Liquefied natural gas]]
			*[[Liquefied natural gas environment and safety]]
			*[[Liquefied natural gas industry]]
			*[[Greenhouse gas emission]]
			*Or explore a [[Special:Random\| random page]]

	==References==		==References==
	{{reflist}}		{{reflist}}
	[[Category:Uploaded]]		[[Category:Uploaded]]

J.williams: 1 revision imported

2015-08-26T21:31:15Z

1 revision imported

← Older revision	Revision as of 21:31, 26 August 2015
(No difference)

J.williams at 16:54, 12 August 2015

2015-08-12T16:54:55Z

New page

[[Category:Done 2015-06-11]]
[[File:640px-LNG_carrier_Alto_Acrux_-_4_May_2013.jpg|400px|framed|Figure 1. LNG carrier. Note the size of the LNG ship compared to the size of the one to the right of it, the LNG ship is enormous!<ref>Wikimedia Commons. (June 8, 2015). ''LNG carrier Alto Acrux'' [Online]. Available: http://commons.wikimedia.org/wiki/File:LNG_carrier_Alto_Acrux_-_4_May_2013.jpg#/media/File:LNG_carrier_Alto_Acrux_-_4_May_2013.jpg</ref>]]

<onlyinclude>An '''LNG carrier''' is a ship that is designed for the transport of [[liquefied natural gas]] in its chilled tanks. Worldwide there are around 359 of these advanced, specialized vessels that are used specifically for the [[transportation|transport]] of liquefied natural gas.</onlyinclude><ref name="RE1">Discovery LNG. (June 3, 2015). ''Shipping and Transport'' [Online]. Available: http://www.discoverylng.com/safety/shipping/</ref> Compared to conventional vessels, LNG carriers release less [[greenhouse gas emission]]s because of their [[natural gas]]-fueled propulsion system.

Since the gas is transported in its [[liquid]] form and because of their physical properties, they are transported either at [[pressure]]s much greater than [[atm|atmospheric pressures]] or at very low [[temperature]]s or some combination of the two. Therefore the ships can be classified as:<ref name=ref3>Liquefied Gas Carrier. (June 3, 2015). ''Principle type and design characteristics of modern liquefied gas carriers'' [Online]. Available: http://www.liquefiedgascarrier.com/type-of-gas-carrier.html</ref>

# Fully pressurized
# Semi-pressurized and refrigerated
# Fully refrigerated

As well, gas carriers can be categorized based on the hazard level of the material being transported:<ref name=ref3/>

# '''Type 1G''': Designed to carry the most hazardous cargo
# '''Type 2G and 2PG''': Designed to carry cargo with a lesser degree of hazard
# '''Type 3G''': Designed to carry the least hazardous cargo

==Construction==
LNG carriers are built using a double hulled construction, with four or five large tanks to hold the liquefied gas. These tanks are generally composed of several layers of material to prevent leaks and keep the LNG at the cold temperature necessary to keep it in its liquid form.<ref name="RE1"/> These tanks are also heavily [[insulation|insulated]], minimizing the amount of LNG that [[boiling point|boils off]] or [[evaporation|evaporates]] during the transportation of the gas. Some vessels actually utilize this "boil off" to fuel the vessel itself. The tanks themselves are generally made of aluminum or 9% nickel steel.<ref>Liquefied Gas Carrier. (June 3, 2015). ''Carrying liquefied natural gases by various type LNG ships'' [Online]. Available: http://www.liquefiedgascarrier.com/Liquefied-Natural-Gas-Carriers.html</ref>

The materials used for the hull of the ship are designed to accommodate a wide range of temperatures. However, if the material in the hull gets too cold it will become brittle, thus it is important that the tanks (at temperatures of -160[[Celsius|°C]]) are insulated sufficiently to protect the hull from the harmful effects of these temperatures.<ref name="RE2"/> The double hulled construction helps with this, as the insulated tanks are located within the inner hull. There is a space between the inner and outer hull to reduce the transfer of [[heat]] and protect cargo tanks in the event of some emergency. The cargo tanks are separated from each other and other components of the ship by dry compartments.<ref name="RE2">Liquefied Gas Carrier. (June 3, 2015). ''LNG vessel construction'' [Online]. Available: http://www.liquefiedgascarrier.com/LNG-vessel-construction.html</ref>

[[File:LNGtanker.jpg|400px|framed|center|Figure 2. Cartoon showing different components of an LNG carrier.<ref>Wikimedia Commons. (June 2, 2015). ''LNGtanker'' [Online]. Available: http://en.wikipedia.org/wiki/File:LNGtanker.jpg#/media/File:LNGtanker.jpg</ref>]]

In addition to these ships being advanced in the way that they hold the LNG, they are also equipped with advanced gas and fire detection and suppression systems to ensure that even a small leak would trigger a response.<ref name="RE1"/> This makes a catastrophic fire on an LNG carriers extraordinarily unlikely.

==References==
{{reflist}}
[[Category:Uploaded]]