基于动态优化的膜法富氧发动机高原工况节能特性研究  

Energy saving on the membrane-based oxygen-enriched engines based on dynamic programming under high altitude conditions

作　　者：安强 姜梦炜 叶敏[2] AN Qiang;JIANG Mengwei;YE Min(Unit 32339 of the People’s Liberation Army,Lhasa 850000,China;National Engineering Laboratory of Highway Maintenance Equipment,Chang’an University,Xi’an 710064,China)

机构地区：[1]中国人民解放军32339部队,拉萨850000 [2]长安大学公路养护装备国家工程实验室,西安710064

出　　处：《兵器装备工程学报》2022年第12期230-235,共6页Journal of Ordnance Equipment Engineering

基　　金：陕西省科技创新团队(2020TD0012);西藏自治区科技计划项目(XZ2019TL-G-02)。

摘　　要：为解决发动机在高原工况下因进气量不足导致功率下降、排气温度上升、冒黑烟等问题,提出一种车载式膜法富氧装置及其动态优化控制方法。在分析发动机车载式膜法富氧装置的结构原理和工艺流程的基础上,制定了基于动态优化的发动机燃油消耗率控制策略,以提高发动机动态响应的实时性和工况适应性。对发动机进行了室内试验和工程车辆实车试验,研究结果表明:基于动态优化的发动机膜法富氧装置可有效提高发动机的热效率和动态响应性能,发动机节油效果显著;在高原工况下具有较好的燃油经济性,增强了发动机在高原工况的适应性。To solve a series of problems caused by insufficient air intake of the engine in the plateau environment including power reduction, exhaust temperature rise and black smoke, this paper proposes a vehicle membrane-based oxygen-enriched device and its dynamic optimal control method. Firstly, the structure mechanism and the process flow of the vehicle membrane-based oxygen-enriched device are described. The control method of engine fuel consumption rate based on dynamic programming is proposed to improve real-time performance and working condition adaptability of engine dynamic response. The engine is carried out through laboratory tests and real engineering vehicle tests. The results show that the device can effectively improve thermal efficiency and dynamic response performance of the engine, and the fuel-saving effect of the engine is remarkable. It has better fuel economy and thus enhances the adaptability of the engine under plateau conditions.

关 键 词：膜法富氧 动态优化 热值 富氧进气 性能参数 

分 类 号：TK421[动力工程及工程热物理—动力机械及工程]