LNG在内燃机中的应用分析

Application of LNG in internal combustion engine

随着中国能源结构的调整和低温制冷和绝热技术的快速发展,LNG(液化天然气)的使用越来越广泛,作为内燃机新能源是LNG应用的一个重要方面。作为清洁能源,LNG拥有占用体积小、能量储存密度大、燃烧性能好、热值高等诸多优点。从LNG的资源情况、物性特征、燃烧特征和安全性等方面介绍了LNG作为内燃机新能源的优势,从技术角度分析了LNG内燃机的特点、技术问题及展望,分析了应用LNG内燃机对环境和节能方面的贡献。

With the energy structure adjustment and the rapid development of low temperature refrigeration and insulation technology in China,LNG（liquefied natural gas）is more and more widely used.LNG is a new energy of internal combustion engine and is very important aspect of LNG applications.As a clean energy,LNG has many advantages like occupied small,energy storage density,combustion performance,high calorific value etc.This paper presents several advantages of LNG from resources viewpoint,like physical characteristics,combustion characteristics and safety aspects etc.Then,it introduces the characteristics and technology problems of the LNG engine.Finally,it analyzes the energy saving contribution when using LNG in internal combustion engin.