The central cooling system of the ship mainly includes high-temperature freshwater closed cooling system and low-temperature freshwater closed cooling system. The ship's main engine is cooled by a high temperature freshwater cooling system, low-temperature freshwater closed cooling system is cooled by high-temperature freshwater and various lubricants, and then through the central cooler low-temperature freshwater is cooled by using seawater. The central cooling system of the ship is separated from seawater and freshwater pipelines. Only one central cooler is used to contact the seawater, which makes the freshwater pipe less corrosion and clean, reduce the management cost, and enhances the system reliability. Titanium plate heat exchanger plays a vital role to adapt to the high corrosiveness of seawater, and the plate heat exchanger also has a compact structure, small size. As the ship's main heat transfer equipment, it is a very good choice.
The marine industry plays a crucial role in linking the global economy – more than 90 percent of the world’s goods are carried by sea. From cruise ships, container vessels, bulk carriers and mega-yachts, to icebreakers, trawlers, tankers, barges and tub boats, Grano offers an extensive portfolio of heat exchangers that provides reliable effective cooling and heating to enable critical on-board systems to operate efficiently. Our state-of-the-art technology is designed and manufactured to the highest standards to ensure a long operational lifetime and durability in all conditions. By working closely with our customers, we provide them with the expertise and solutions they need to boost the performance of their vessels.
There are over 50,000 merchant ships trading internationally, transporting a wide range of cargo. Without them it would be impossible to supply goods on the scale needed to meet the demands of the modern world.
A rising population, together with a predicted long-term economic growth in the developing markets of Asia, Africa and Latin America, means that seaborne trade is set to increase further over the next decade. Higher disposable incomes in the emerging economies will boost demand for imported products. At the same time, more and more people are spending their leisure time afloat. The popularity of cruising holidays has seen annual passenger numbers increase by nearly seven per cent since 1990. Larger, more diverse, ocean liners with a huge choice of on-board facilities and activities have made the vessels destinations in themselves.
While the average container ship emits 40 times less CO2 than a large freight aircraft and more than three times less than a heavy lorry, shipping has come under the environmental spotlight due to emissions of nitrogen and sulphur oxides (NOx and SOx). In 2010 the International Maritime Organization imposed a global cap on the sulphur content of marine fuel to 3.5 per cent and 1 per cent in Emission Control Areas (ECAs). In 2015 the ECA limit was reduced to 0.1 per cent.
Safety, reliability and durability are essential to a ship’s operations. As experts in heat exchange technology, Grano offers the widest range of cooling applications to help keep engines running efficiently, reduce emissions, recover waste heat and supply fresh water. All of our products are built to withstand the rugged conditions at sea and are backed by years of experience in supplying the marine industry.