The waste heat from the exhaust gases can be utilized to heat and generate steam, which can be used for heating cargo area, accommodation, fuel oil, and all
FREMONT, CA: With industries embracing a greener environment, the shipping industry has also started supporting the drive for a greener marine environment. With the help of advanced technologies, it has helped this industry to guarantee that new ships make as less pollution as possible.
Creating ships these days have become a hard task as it has to meet the present environmental rules and regulations. Here are twelve ways new technologies can utilize to reach the goal of creating a green ship.
Having an improved cooling water system of pipes, coolers, and pumps will help reduce the resistance to flow, which will save up to 20 percent of the ship's electric power and fuel consumption up to 1.5 percent.
Exhaust Gas Recirculation:
Exhaust gas recirculation from the engine cylinder reduces NOx emissions with scavenge air, lowering the combustion chamber's temperature. This lessens the NOx up to 80 percent.
LNG Fuel for Auxiliary engine:
Ships' primary source of power is the auxiliary engines, and these machines run onboard vessels continuously. LNG is the most environmentally friendly fuel, and it helps lessen air pollution substantially from ships.
Sulphur Scrubber System:
Using an exhaust gas scrubber system can reduce the sulfur or SOx emission from the exhaust in ships. It washes out the sulfur from the engine's exhaust gas, which helps in eliminating the SOx up to 98 percent with other harmful particles.
No Ballast System:
IMO's (International Maritime Organization) ballast water convention emphasizes on decreasing the movement of sediments and micro-organisms from one territory to another through ballast of ships. To avoid such conditions, the plans for making "No Ballast Ships" is under development, which could significantly prevent it.
Water in Fuel:
Adding water in fuel before its injection into the combustion chamber can decrease the temperature inside the cylinder liner, reducing the NOx to 35-35 percent.
Advanced Rudder and Propeller System:
A well-designed propeller and a simplified rudder system can decrease fuel consumption by 4 percent and less emission. This advancement has been created to lower fuel consumption and enhance the speed of the vessel.
Speed nozzles are usually used in small supply vessels and tugs to power the ships. With new design features of merchant vessels, it can enhance the ship's propulsion performance and save energy up to 5 percent.
Sandwich Plate System (SPS):
Sandwich plate system (SPS) composts two metal plates by bonding with the polyurethane elastomer core. This helps prevent the use of steel that needs extra stiffening, making the structure lightweight and less susceptible to corrosion. SPS has qualities that are superior in-service performance and decreased through life maintenance, which can help in the green ship recycling process.
LNG Fuel for Propulsion:
Liquefied Natural Gas (LNG) reduces air pollution from ships and, when combined with diesel oil, leads to improved engine performance and fuel saving.
Hull paint can increase the fuel and consumption and emissions of a ship. Therefore, applying the right paint at the right hull area can decrease the frictional resistance of the ship, which helps save fuel by 3-8 percent.