基于准维现象学的低碳双燃料直喷发动机全循环实时预测模型研究  

Study on Full-Cycle Predict Phenomenological Model for Low Carbon Dual-Fuel Direct Injection Engine System

作　　者：张根源 朱晶宇 礼博 王洋 隆武强[1] Zhang Genyuan;Zhu Jingyu;Li Bo;Wang Yang;Long Wuqiang(School of Energy and Power Engineering,Dalian University of Technology,Dalian 116024,China)

机构地区：[1]大连理工大学能源与动力学院,大连116024

出　　处：《燃烧科学与技术》2023年第2期177-186,共10页Journal of Combustion Science and Technology

基　　金：内燃机燃烧学国家重点实验室开放基金资助项目(K2020-06);中央高校基本科研业务费资助项目(DUT19RC(3)050)。

摘　　要：基于Matlab/Simulink建立了柴油甲醇双燃料直喷发动机在环仿真平台,分别介绍了系统中进排气过程、供油过程、传热过程的模型搭建.针对双燃料发动机提出相关假设与简化,采用Packet现象学模型建立射流燃料部分准维燃烧模型,采用Wiebe函数建立预混甲醇燃料部分的预混燃烧模型.将仿真获得的缸内放热过程结果与实验数据作比较,验证后发现该模型能够较为准确地模拟柴油甲醇双燃料直喷发动机的燃烧过程,能够有效辅助发动机参数优化以及实时控制等后续工作.A model-in-the-loop simulation platform of a diesel-methanol dual-fuel direct injection engine was established based on Matlab/Simulink.The models of intake and exhaust system,injection system,heat transition system,and cylinder system were introduced,respectively.The phenomenological Packet model was used to represent the jet-injection combustion of diesel and the Wiebe function was used to establish the pre-injection combustion of methanol.Compared with the experimental data,the model can accurately reproduce the combustion process of the diesel methanol dual-fuel direct injection engine,which suggests its capability in assisting the work such as the optimization of engine parameters and real-time control.

关 键 词：MATLAB/SIMULINK 在环仿真 双燃料 准维模型 

分 类 号：TK11[动力工程及工程热物理—热能工程]