摘要
以长江干线3500 t LNG双燃料主机运输船为研究设计对象,考虑未被利用的LNG汽化冷能,提出了以发电或发电+冷库为主的4种LNG冷能梯级利用方案.基于Aspen-Hysys软件对所提出的方案进行模拟计算和对比分析.结果表明:4种方案中以"发电+高温冷库+蓄冷"为最优方案,进一步利用遗传算法对该方案进行了参数优化,优化后其[火用]效率可达40.61%,系统年运行收益达5.75万元,以估算的初始投资计算,系统运行3.6年即可收回成本.
The design objective is a 3500 ton transport ship of Yangtze River trunk line powered by LNG dual fuel engine.By considering the unused LNG vaporization cold energy,this paper proposed four LNG cascade utilization schemes with power generation or power generation+cold storage as the main utilization modes.The proposed schemes are simulated and analyzed by using the Aspen-Hysys.The results show that the″power generation+high temperature cold storage+cold storage″scheme is the best scheme.Further,the genetic algorithm is used to optimize the design parameters.The efficiency after optimization can reach 40.61%,the annual operating income of the system can reach 57500 CNY,and the cost of the system can be recovered within 3.6 years based on the estimated initial investment.
作者
刘锐
沈妍
吴春明
姚寿广
谷家扬
LIU Rui;SHEN Yan;WU Chunming;YAO Shouguang;GU Jiayang(School of Energy and Power Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China;School of Mechatronics and Power Engineering, Jiangsu University of Science and Technology, Zhangjiagang 215600, China;Marine Equipment and Technology Institute, Jiangsu University of Science and Technology, Zhenjiang 212003, China)
出处
《江苏科技大学学报（自然科学版）》
CAS
北大核心
2021年第5期38-43,共6页
Journal of Jiangsu University of Science and Technology:Natural Science Edition
基金
国家重点研发计划资助项目(2018YFC0310400)。
关键词
LNG冷能
综合利用
性能模拟
[火用]分析
LNG cold energy
comprehensive utilization
performance simulation
exergy analysis
