摘要
为验证内燃机全封闭进排气系统的可行性，研究了液氧固碳内燃机燃烧的理论和实验基础。应用KIVA-3V程序，建立了汽油机燃烧室计算网格，分析了在废气再循环（EGR）率大于8％时，EGR率对缸内平均温度、压力、放热率和CO2浓度的影响。改造IP52FMI单缸四冲程汽油机，去掉了缸内喷水系统，试验了自制的二氧化碳捕集装置。结果表明：当EGR率为40％时为最优EGR率；持续1～10min向装置中通入液氧27--231g，得干冰32--345g。因而，验证了使用本二氧化碳捕集装置，可实现液氧气化，并冷凝C02为干冰。
Theoretical and experimental bases were investigated for internal combustion engine using liquid oxygen to solidify carbon to verity the feasibility of the closed inlet and exhaust system of internal combustion engine. A computing grid of gasoline-engine was established based on KIVA-3V code according to the actual shape of a combustion chamber. The EGR （exhaust gas recirculation） rate effects were analyzed on the temperatures, the pressures, the heat release rates and the concentrations of CO2 in a cylinder with an EGR rate of more than 8%. An IP52FMI single-cylinder four-stroke gasoline-engine was improved without cylinder water injection system. And the experiments of capture carbon were carried out in a self-made carbon dioxide trapping device. The results show that dry ice of 33--345 g is obtained with an optimum EGR rate of 40% when liquid oxygen of 27--231 g inputs into the device for 1--10 min. This verifies that using the carbon dioxide capture device can realize the oxygen gasification and condensate the CO2 into dry ice.
出处
《汽车安全与节能学报》
CAS
CSCD
2014年第1期76-82,共7页
Journal of Automotive Safety and Energy
基金
国家自科学基金面上资助项目(5117 6082)
北京市属高等学校高层次人才引进与培养计划项目--长城学者培养计划(CIT&TCD20140311)
关键词
内燃机
二氧化碳减排
富氧燃烧
液氧固碳技术
数值模拟
KIVA-3V程序
试验
internal combustion engines
CO2 emission reduction
oxygen-enriched combustion
carbon-sequestration liquid oxygen
numerical simulation
KIVA-3V code
experiments
