DuroShell
Optimized for usage as an LNG vaporizer, Alfa Laval’s DuroShell plate-and-shell warmth exchanger supplies greater thermal effectiveness than traditional plate-and-shell layouts, along with market-leading tiredness resistance.
Thanks to brand-new study right into glycol cold, it can currently be utilized in a lot more portable as well as affordable installments.
“The continued rise in the number of vessels sailing with LNG is one of the most significant trends in today’s marine industry,” states Jonny Hult, Head of Marine Heat Transfer Equipment atAlfa Laval “With more and more ships relying on LNG as fuel, we are seeing greater demand for vaporizer technology that can dependably resist freezing and the fatigue caused by pressure and temperature. DuroShell is exceptional in this regard.”
Laboratory freeze screening generated cost-saving understandings
With its 100% stainless-steel layout, DuroShell can dependably take care of LNG entrance temperature levels that come close to -170 ° C or reduced.
Now Alfa Laval has actually additionally done a comprehensive lab freeze screening, getting understanding that will certainly cause decrease funding as well as functional prices.
“Extreme low temperatures are not an issue for DuroShell, but a glycol mix with a freezing point of around -50°C has the potential to freeze when it meets plate surfaces as cold as -90°C,” Hult clarifies. “Solving this problem with a higher glycol flow is a very expensive solution for our customers, so Alfa Laval has worked with SINTEF Energy Research to find the correlation of flows on both sides and thereby avoid freezing of fluid on the hot side.”
Hult states that this will certainly allow shipbuilders make use of a much more portable plate-and-shell layout with smaller sized pumps as well as pipelines, which, subsequently, will certainly indicate CAPEX as well as OPEX cost savings for the shipowner.
DuroShell’s capability to hold up against the huge temperature level distinctions in fuel gas supply systems stems partially from its unique CutWing plates, which include the copyrighted Alfa Laval RollerCoaster plate pattern. The RollerCoaster layout supplies high disturbance that enhances warmth transfer effectiveness as well as hence considerably decreases the danger of cold as well as fouling.
Another one-of-a-kind DuroShell attribute is its PowerPack circulation tubes, which run completely with home plate pack as well as safeguard an enhanced circulation circulation onto the warmth transfer surface area. This layout boosts the stamina of home plate pack for included tiredness resistance popular LNG tasks.
“From the laser-welded plate pack to RollerCoaster and PowerPack, DuroShell is loaded with features that help us secure far higher resistance to temperature and pressure fatigue than possible with conventional plate-and-shell designs,” statesHult “Based on this and our knowledge about freezing behaviour, we can confidently state that DuroShell is the market’s best solution for LNG applications today.”
