LNG动力船舶冷能回收利用技术的研究

Study on Cold Energy Recovery and Utilization Technology of LNG Powered Ship

环境保护问题目前越来越得到船舶相关领域的关注,LNG作为一种清洁高效的能源正逐渐在船舶领域推广。由于LNG在汽化时会释放出大量的冷能,如何高效地利用LNG的冷能,对于节约资源和提高经济效益有着重大意义。论文简要介绍了LNG冷能的基本特性及目前冷能回收现状,简单介绍了利用LNG完成循环对外膨胀做功发电的方法,并提出了一种运用船舶废热与冷能进行温差发电的方法。

At present, more and more attention has been paid to the problem of environmental protection in the field of ship. As a kind of clean and efficient energy, LNG is gradually being popularized in the field of ship. For the LNG will release a lot of cold energy in the process of vaporization, how to efficiently utilize the cold energy of LNG is of great significance for saving resources and improving economic efficiency. This paper briefly introduces the basic characteristics of LNG cold energy and the current situation of the cold energy recycling. It also briefly introduces the method of using LNG to complete the cycle of external expansion to realize power generation, and proposes a method of using the temperature difference between waste heat and cold energyto generate electricity.