同济大学学报（自然科学版）2017，Vol.45Issue(7)：1030-1036,7.DOI:10.11908/j.issn.0253-374x.2017.07.013
内燃兰金循环发动机爆震控制试验
Experimental Study of Knock Control in an Internal Combustion Rankine Cycle Engine
摘要
Abstract
Based on a retrofitted two-cylinder diesel engine,combined with a self-designed intake and direct high temperature water injection system,the knock condition existed in internal combustion rankine cycle engine have been investigated at a high compression ratio and high oxygen fraction.The results show that compared with air intake,the knock occurred results in a high oxygen faction and the knock intensity (KIA) calculated from in-cylinder pressure Fourier transfer and band-pass filtering reaches 0.26 MPa.The knock frequency is controlled by utilizing a suitable direct water injection strategy and the combustion stability is sustained.Meanwhile,the injected high temperature and pressure water evaporate after heat absorption,which improves system thermal efficiency effectively.关键词
内燃机/内燃兰金循环/纯氧燃烧/缸内喷水/爆震控制Key words
internal combustion engine/internal combustion rankine cycle/oxy-fuel/direct water injection/knock control分类
能源科技引用本文复制引用
康哲,付乐中,邓俊,吴志军..内燃兰金循环发动机爆震控制试验[J].同济大学学报（自然科学版）,2017,45(7):1030-1036,7.基金项目
国家自然科学基金重大研究计划(91441125) （91441125）
国家自然科学基金(51076118) （51076118）
