摘要
在原单一燃料放热规律计算模型的基础上,针对双燃料发动机燃烧过程的特点,将其分为四个阶段,建立了一种新的双燃料发动机燃烧放热率计算模型。使用该模型,可以实现引燃燃料与主燃料放热率计算的分离。简要介绍了该模型的计算原理和方法。利用该模型分别计算了柴油-LPG双燃料发动机的引燃柴油、LPG及总体的燃烧放热率,分析了其燃烧过程及燃烧特性,并与试验结果进行了分析比较。为研究分析双燃料发动机的燃烧特性提供了一种便捷有效的方法。
A new computational model for combustion heat release rate of dual-fuel engine was proposed based on the original model of single-fuel engine. The principle and method of the model was briefly introduced. The heat release rate curves of pilot diesel oil, of LPG and of the total were calculated with the new model. The combustion processes and the combustion characteristics of a diesel/LPG dual-fuel engine were studied. It provides a convenient and efficient way for studying of the combustion characteristics of a dual-fuel engine.
出处
《热科学与技术》
CAS
CSCD
2005年第3期267-271,共5页
Journal of Thermal Science and Technology
关键词
计算模型
放热率
燃烧特性
双燃料发动机
computational model
heat release rate model
combustion characteristic
dual-fuel engine
