【作者】

Zhiyu Wang，Song Zhou，Ruohan Li

【摘要】

论文已在中国上海举行的2013年CIMAC大会上发表，论文的版权归CIMAC所有。As international oil price rise rapidly, the proportion of the fuel cost share of the transport cost has become increasingly high, At the same time, in order to reduce CO2 emissions, the meeting of MEPC formulated and adopted the resolution on EEDI, and saving energy and reducing emission has become a marine industry benchmark. Diesel is the main power of the ship, its thermal efficiency is the highest in all thermodynamic engines, but still more than 50% of the energy is not being used. First of all this paper analyze and discuss the energy distribution of the main engine of the ship. The result shows that making full use of the waste heat of the main diesel engine scientifically and effectively, not only reduce the fuel consumption and the shipping cost, but also re-duce the value of the ship EEDI effectively, and improve the international competitiveness of the Chinese shipbuilding industry. To be able to design and transform the green ship, thermodynamic analyzing of the ship power plant and mastering the energy utilization of each part is necessary. In this paper, the energy system of the ship power plant was analyzed with the heat balance which is based on the first law of thermodynamics and the exergy balance which is based on the second law of thermodynamics, and the analysis of the exergy balance is important, and has built the calculation model of the thermodynamic system of the ship power plant. The result shows that the irreversible exergy loss of the cylinder is the largest in the main engine; The exergy loss of the waste heat boiler is the largest in the waste heat power generation system; When the diesel power is enough large to produce large waste heat, the waste heat recovery system can meet ship's auxiliary heat and electricity demand. According to the results of each part of the energy loss, analyze the causes and put forward improvement measures. Finally, the economy of the waste heat recovery system was analyzed, the result show that the economic viability of the waste heat recovery system is strong. According to the model and calculation of the thermodynamic system of the ship power plant, this thesis obtain the law of utilization of energy, and find the priority and direction as to transforming the ship power plant, provide the theoretical basis for development highly efficient ship waste heat recovery system.

【会议名称】

第27届CIMAC会议

【会议地点】

上海

【下载次数】

2

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