Water is the most precious abundant substance at sea but impurities and salt make it unsuitable for Human consumption.
Fresh water generator, one of the important machinery on board a ship and due to massive global warming would be utilized as secondary source to produce fresh water on coast, By Using evaporation method fresh water is generated . There are two things that are available in plenty on ship to produce fresh water –Seawater and heat. Thus fresh water is produced by evaporating sea water using heat from any of the heat source. The evaporated sea water is then again cooled by the sea water and the cycle repeats.
Generally the heat source available is taken from the main engine jacket water, which is used for cooling the main engine components such as cylinder head, liner etc. The temperature available from this jacket water is about 70 deg. centigrade. But at this temperature the evaporation of water is not possible as we all know that the evaporation of water takes place at 100 deg centigrade under atmospheric pressure. Thus in order to produce fresh water at 70 degrees we need to reduce the atmospheric pressure, which is done by creating a vacuum inside the chamber where the evaporation is taking place. Also, as a result of the vacuum the cooling of the evaporated sea water will also take place at lower temperature. This cooled water is collected and transferred to the tank.
Nowadays, reverse osmosis is one of the methods which are used on board for generating fresh water. Generally this is used on passenger vessels wherein there is a large requirement of fresh water production. However, in merchant ships the evaporation method is used as reverse osmosis is costly and includes large maintenance cost for membrane.
• Replacement Spares for Fresh water Generator
We Provide replacement spares for different models of different make which are EX stock available, With huge inventory and expertise pertaining to OEM specification of different gaskets and plates with in-depth knowledge about process with majority of items readily available gives customers peace of mind knowing their parts would be exact what is required and with cost saving as well. We supply Reconditioned plates with brand new gasket and six months warranty at very competitive price.
• Service and Support for Freshwater Generator
We can also provide fully tested with warranty Re-conditioned plates for gasketed plate heat exchanger. We provide Regasketing service for complete plate stack of different brands on board as well