Have you guys ever imagine, what is the total population numbers of LNG Carriers from various size and type that is still operating / sailing nowadays? Well, rough guess, from several entrusted sources I had, there are total of abt. 343 units of LNGC vessels from various ages, sizes and types are still operating worldwide now. Off course out of that numbers, there are always set off between newly delivered vessels to the market with numbers of units phased out.
If we’d like to see deeper in to the numbers, if any of you are interesting to know further the profiles and demographic distribution of such population numbers, we can start up with defining the appropriate ways of categorization, as enable us to do proper grouping and clustering all the available information/data's.
Peoples are used to cluster the LNGC under several common categorizations i.e. by ages, by sizes, by types of tank (containment) system, etc.
I. Size Categorizations
OCIMF had introduced a standard categorization, in accordance to the volumetric size of the LNGC’s cargo tank containment (in cub.meter). The categorizations are set as follows;
- Category A vessels : LNGC vessels with cargo tank capacity less then 59,999 m3- Category B vessels : LNGC vessels with cargo tank capacity in between 60,000 m3 up to 149,999 m3- Category C vessels : LNGC vessels with cargo tank capacity over then 150,000 m3 and above
The Size profile of the LNGC population, under this categorization is as shown on the following enclosed statistical chart
It’s obviously seen that the most common size of The LNGC in the market is in the range of Cat.B size, thus means most of LNGC vessels operating in the market nowadays are having capacity size in between 60,000 m3 up to 149,999 m3/. The Cat.B vessels is dominating the population by 72%.
II. Categorizations by Types of Tank (Containment) SystemThere are at least 3 main groups of Cargo Tank (containment) systems, detailed as follows;
- Membrane Types systems – comprise of all basic membrane technology containment / system i.e. GTT Mk I, GTT Mk III, GT. No.82, 85, 88, GT No.96, etcThe profile is as seen on the following charts
- Spherical Types system – Mostly MOSS Rosenberg technology containment / system
- Other Types / Systems – included but not limited to ESSO, IHI SPB, Worm, Cylindrical, Bi-Lobe, etc
It’s obviously seen that LNGC vessels having (adopting) Membrane Type Technology for it’s containment system onboard are dominating the overall population numbers by 65% of the population.
III. Ages Categorizations
Normally peoples are grouping the vessel’s age under following terms and norms;
- Below 5 years old – all vessels built no more (less) than 5 years a goIV. Mixed up Categorizations
- 5 to 25 years old – all vessels built and operated sometime between last 5 years to last 25 years.
- Above 25 years old – all vessels built and operated more than 25 years back.
Some peoples are sometime also doing mixed up categorization in order to get in to a more through rough profile pictures, describing a more complex demographic distribution through out the population.
Herewith are profiles of some Mixed up categorization i.e. Age profile by OCIMF size Categorization, Age Profile by Types of Containment System, Size profile of LNGC by Containment System, etc
From which we can see at least, that most of LNG Vessels at Cat.B were built between last 5 years to the last 25 years, where else most of Cat.A vessels were built very recently (less than 5 years old).
At the same time, we could also see that most of LNGC vessels built very recently (less than 5 years old) are using Membrane types of containment system.
As to summarize the above outlined, we could conclude at least that The common size and type in the market which dominating the most population of LNGC vessels worldwide nowadays are Cat.B size of vessels with Membrane containment technology / system.
Early July 2011
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