LNG Libra, a Moss-type LNG carrier, image: Hoegh LNG
Malaysia’s Petroliam Nasional Bhd (Petronas) has placed a newbuild order recently for a pair of ABS-classed ‘Moss-type’ LNG carriers from Hyundai Heavy Industries.
According to ABS, these two ships will have 150,200 m3 capacity and be the largest Moss-type units ever built at HHI with spherical tanks 42-meters in diameter.
ABS notes, “because Moss-type tanks have no minimum filling limits, they are well suited to serve as shuttles to and from FLNG or other offshore facilities.”
Petronas’ first FLNG facility, currently under construction at DSME, is due to be installed offshore offshore Sarawak, Malaysia and is designed to produce 1.2 million tons per year of LNG. It is scheduled to be ready for start-up by end of 2015.
The Petronas ships will also feature ultra-steam turbine propulsion systems designed by engineers at Mitsubishi Heavy Industries. This system is expected to be about 15 percent more energy efficient than conventional steam turbines while offering an extremely long life time of up to 40 years, according to Mitsubishi.
The following is a diagram of an UST system, via Mitsubishi:
Ultra-Steam Turbine system, via Mitsubishi
In the UST system, the reheater is the key differentiator which takes the high pressure steam and heats it from 2.2 MPa @ 365 deg C to 2.0 MPa @ 560 deg C before heading to the intermediate pressure turbine, resulting in improved thermodynamic efficiency according to engineers from Samsung Heavy Industries.
Feeding the high pressure turbine will be steam at 10 MPa, or 1450 psi.
ABS notes, the ships will feature full-length tank covers integrated into the main hulls which is expected to improve longitudinal strength and minimize structural discontinuity while at the same time allow for piping and passageways to be arranged on the tank-cover deck, improving safety and ease of maintenance.
Bollinger Shipyards announced today it has acquired the shipyard facilities of Gulf Island Fabrication (NASDAQ:GIFI). Lockport, Lousianna-based Bollinger Shipyards is a leading privately-held designer and builder of steel military and...
Crowley Engineering Services has released the design details for the first fully-electric tugboat with autonomous capability for the U.S. market. Crowley is promoting the design as a sustainable and high-performing...
Norwegian shipbuilder VARD has secured a contract for the design and construction of three Service Operation Vessels (SOVs) to operate at the Dogger Bank Wind Farm in the North Sea...
April 9, 2021
Total Views: 1548
Sign Up Now for gCaptain Daily
Just enter your email and get hot news every morning
SIGN UP
Get the latest gCaptain articles and breaking news
Sign up for gCaptain Daily
Get the latest gCaptain articles and breaking news
We use cookies on our website to give you the most relevant experience. By clicking “Accept”, you consent to the use of ALL the cookies.
This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience.
Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.