Energy Saving And Emission Reduction Technologies And Measures for Bulk Carrier

Exhaust emissions generated during the use of bulk carrier will pollute the marine environment and air. Therefore, in the design and assembly of bulk carrier, energy-saving and emission reduction technologies should be fully utilized to scientifically and effectively improve the efficiency of ship transportation, reduce energy consumption and pollutant emissions in the operation of the ship, and safeguard the marine and biological environments. This paper introduces the energy saving and emission reduction technology and measures for bulk carrier.

▋Analysis of Influencing Factors on Energy Saving and Emission Reduction of Bulk Carrier

The performance of the bulk carrier itself is one of the main factors affecting the effect of energy saving and emission reduction in ship operation. Different ship main and auxiliary engine condition, operation age, ship model, submerged volume and other performance factors are the main reasons affecting the effect of energy saving and emission reduction of ships. The main and auxiliary engines of bulk carrier are the main energy-consuming equipment and safety equipment in the transportation of ships, and the efficiency of ship operation is directly proportional to the fuel efficiency. Can take to reduce the ship in the operation of the unit in the fuel consumption to achieve the purpose of energy saving and emission reduction in ship transportation. The wear and tear of the main engine of the ship running for a long time is large, and the fuel consumption per unit is too large compared with that of the new ship running for a shorter time, which has a bad influence on the energy utilization efficiency of the ship and the pollutant emission produced by the ship.

The environment in which a bulk carrier operates has a certain impact on the fuel utilization rate, which in turn affects the effect of energy saving and emission reduction. The environment in which a ship operates lies in the geographical environment where it is located, including shipping lanes, temperature, air pressure and weather, etc., which has a great influence on the emissions and fuel consumption efficiency of the ship. If sailing in windy weather, it will certainly enhance the resistance of ship operation and increase the load of the host, and if the load of the host exceeds its load, it will aggravate the ship's fuel consumption, which has an unfavorable impact on the energy saving of the ship.

The efficiency of bulk carrier and the capital cost of energy saving and emission reduction technology inputs reflect, to a certain extent, the support of enterprises and the state in energy saving and emission reduction work. When the cost of energy saving and emission reduction input of shipping enterprises is low, enterprises have more resources to implement energy saving and emission reduction work, and can promote the research and development of energy saving and emission reduction technology for ships. However, the higher cost of inputs will constitute an economic burden for shipping enterprises, and most of the shipping enterprises negatively respond to the promotion and application of energy-saving and emission reduction technologies, which to a certain extent hinders the healthy development and progress of the ship transportation industry.

▋Application of Energy Saving and Emission Reduction Technologies for Bulk Carrier

Bulk carrier hull to reduce resistance to reduce consumption of the hull to reduce resistance, at the same time reduce energy consumption in navigation, is to realize the operation of energy saving and emission reduction of one of the main technical means. The designers implement the linear design of bulk carrier hull with low resistance, the design of hull appearance to reduce resistance, and the adjustment of ship's floating state to reduce the resistance of traveling and energy consumption. The designers carry out the linear design for low resistance with the optimization of the hull's line shape and the optimization of the overall design of the hull. Based on the mother ship type and their own experience, the designers select the appropriate proportion size of the ship, adjust the position of the floating center and the squareness coefficient under the premise of ensuring the sufficient drainage capacity.

Waste heat recovery and exhaust gas treatment of bulk carrier is also a major energy saving and emission reduction method, and the technical aspects of waste heat utilization by bulk carrier. In the fuel consumption during operation, 50% of the heat will be wasted in the form of heat radiation, ship exhaust gas emission and heat exchange. The waste heat of the main engine of the bulk carrier is effectively converted by gas turbine, and the waste heat of the main engine cooling water can be reused for the waste heat of the ship's sweeping gas and cylinder set. The treatment of ship exhaust gas is carried out by installing exhaust gas purifier and adopting the circulation system of exhaust gas treatment to improve the treatment efficiency of harmful substances of ship exhaust gas and achieve the effect of emission reduction.

Conclude

Energy saving and emission reduction of bulk carrier has a major role, Qinhai Shipyard adopts scientific and effective energy saving and emission reduction methods, carries out in-depth research on energy saving and emission reduction technology, optimizes the performance design of bulk carriers, effectively improves the economic benefits of ship transportation, and promotes the stable development of ships.