It is reported that the "Norwegian Escape" cruise ship was the first of the new Breakway + class cruise ships delivered to Norwegian Cruise Line (NCL) in October 2015. With 19 decks and 4,200 bunks, 164,600 gross tons and 325.8 m long, this ship is not only Norway's largest cruise ship to date, but also one of the world's largest cruise ships.
A number of Alfa Laval systems were installed on the "Norwegian Escape" to achieve a wide range of functions on board.
Due to the heavy oil, low-sulfur heavy oil and marine gasoline are required. For heavy oil and marine gasoline, the ship has six Alfa Laval S separation systems and an additional separation system for the lubricating oil. The vessel is also fitted with two medium-sized Alfa Laval Aalborg OM oil-fired boilers.
The ship's waste fuel recovery will be completed by the unique Alfa Laval PureDry waste oil recovery system, and the waste heat generated by the engine will power five Alfa Laval XW waste heat recovery boilers. In addition, the vessel is equipped with an Alfa Laval MEP freshwater manufacturing machine, an Alfa Laval PureBilge oil water treatment system and an Alfa Laval PureBallast ballast water treatment system with a capacity of 500 m3/h to ensure environmental protection.
The role of the brightener is to convert the invisible ultraviolet radiation absorbed by the product into purple-blue fluorescent radiation, which complements the original yellow radiation to become white light, and improves the whiteness of the product under sunlight. Brighteners have been widely used in textiles, papermaking, washing powder, soap, rubber, plastics, pigments and paints.
Generally, brighteners are divided into two categories, one is water-soluble brighteners, and the other is water-insoluble brighteners. The former can be used as a brightener for paper, paint, washing powder and cotton fabrics. The latter can be used for whitening of chemical fibers and plastics.
It is often divided into:
Fluorescent brightener for detergents; Fluorescent brighteners for textiles; Fluorescent brighteners for papermaking; Fluorescent brighteners for plastics and synthetic materials; Fluorescent brighteners for other purposes.
This product is especially used for the molding and processing of various plastics and plastic products under high temperature. Because of its good heat resistance, light resistance and chlorine resistance, it is a brightener for polyester fibers. Polyester, cotton and other fiber blended fabrics The whitening effect is also particularly ideal, and can be used for the whitening of polyester stock solution.
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