基于分析的船舶能量系统热经济性  

Thermal economics of ship energy system based on exergy analysis

作　　者：李可顺[1] 杨昺崧[1] 孙培廷[1] 刘伊凡[1] 

机构地区：[1]大连海事大学轮机工程学院,辽宁大连116026

出　　处：《大连海事大学学报》2013年第4期91-94,共4页Journal of Dalian Maritime University

基　　金：中央高校基本科研业务费专项资金资助项目(3132013035)

摘　　要：为提高船舶能量系统的利用水平,减小能耗和对环境的污染,使用热经济学分析方法对某船主机能量系统进行分析并建立热经济模型,分析独立变量扫气温度、最高燃烧压力对机械效率的影响,获得了主机能量系统的热经济优化点.对主机能量系统的优化表明,输出功的影子价格降低约3.2%,在提高系统能量利用效率的同时,也提高了系统的经济性.该方法对指导船舶设计和管理具有一定的参考价值.To improve energy utilization of ship integrated energy system, while reducing energy consumption and pollution, the paper takes the thermodynamic system of the main engine as an example, establishes a model with the aid of thermal economic a- nalysis method, and analyses the influence of scavenge air tem- perature and maximum firing pressure on the mechanical efficien- cy. And so the curves of mechanical efficiency changes with scavenge air temperature and maximum firing pressure and the optimal point are obtained. Results show that optimization can make the price of energy drop about 3.2% , while improving the system energy efficiency and economy. The method has a certain reference value for the design and management of the ship.

关 键 词：船舶 能量系统 (火用)分析 热经济性 优化 

分 类 号：TK421[动力工程及工程热物理—动力机械及工程]