Comparative Study on Environmental Benefits of Using low-Sulphur Oil and Shore Power Technology for Ship Berthing

¹ China Waterborne Transport Research Institute, Beijing, 100088, China
² International Science and Technology Cooperation Base for Waterborne Transport Pollution Preventing-and-Control & Major Accident Emergency Response Technology, Beijing, 100088, China
³ China COSCO Shipping Cooperation Limited, Shanghai, 200027, China
⁴ State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
⁵ China COSCO Shipping Seafarer Management Co., Ltd. Qingdao Branch, Qingdao, 266006, China

^* Corresponding author’s e-mail: heweijian@wti.ac.cn

Abstract

In order to compare the environmental benefits of two emission reduction measures, i.e. using low-sulphur oil and shore power technology, this paper takes the ships arriving at Guangzhou port as an example, based on the ship data of entry and departure visa of Guangzhou port in 2015, and uses statistical analysis to determine the relationship between different ship types of diesel engines, ship berthing time and ship deadweight tonnage, and based on the use of low-sulphur oil and berthing using shore power air pollutants emission On the basis of emission factors and diesel engine load, the environmental benefits of the two emission reduction measures are calculated by the calculation model established by the dynamic method. The results show that:(1) in 2015, when ships berthing in Guangzhou port used low-sulphur oil with sulphur content of 0.5%, PM10, NOx, SOx and CO2 decreased by 231.6t, 165.5t, 2039.3t and 0t respectively, when using low-sulphur oil with sulphur content of 0.1%, PM₁₀, NO_X, SO_x and CO₂ decreased by 244.1t, 517.1t, 2382.7t and 0t respectively. when ships berthing in Guangzhou port used shore power, PM, NO_x, SO_x and CO₂ decreased by 283.8t, 2975.6t, 2407.7t and - 3782.2t respectively. (2) compared with the use of low sulphur oil, the use of shore power by berthing ships has a significant advantage in NOx emission reduction. In terms of particulate matter, SO_X and CO₂ emission reduction, there is no significant difference between the two measures.