The feasibility of alternative fuel power systems in ships is explored to further promote the transformation of green shipping in China.Taking container ships on the Yangtze River as the research object,low-carbon fuels(liquefied natural gas,methanol)and zero-carbon fuels(liquid ammonia,liquid hydrogen)are selected as alternative fuels,the carbon equivalent emission and the economic cost of fuel power systems are assessed by the methods of all life cycle environmental assessment and cost assessment,and the uncertainties of the results are analyzed.The anti-entropy weight and TOPSIS(technique for order preference by similarity to an ideal solution)methods are used for the comprehensive evaluation.The environmental assessment results show that,the carbon equivalent emissions of liquid ammonia,liquid hydrogen and liquefied natural gas are reduced by 66.80％,52.51％and 16.94％,respectively,compared with that of benchmark diesel;the cost assessment results show that the economic costs of methanol and liquefied natural gas are reduced by 24.51％and 20.27％,respectively,compared with that of benchmark diesel.From the perspective of system applicability,the closeness of both liquefied natural gas and liquid ammonia reaches 0.7,followed by methanol.The assessment results indicate that liquefied natural gas,liquid ammonia and methanol are ideal alternative fuels of container ships on the Yangtze River,which provides a scientific reference for the alternative choices of clean fuels.
water transportationalternative fuel power systemfull life cycleemission reductioneconomic cost
万方数据
维普
