Zhifeng Zhao, Xuelong Miao^*, Xu Chen, Jinbao Zheng, Yage Di, Zhenjie Bao, Zhuo Yang

Energy Engineering, Vol.121, No.9, pp. 2603-2620, 2024, DOI:10.32604/ee.2024.051237 - 19 August 2024

Abstract Ammonia-diesel dual fuel (ADDF) engines for transportation applications are an important way to reduce carbon emissions. In order to achieve better combustion of ammonia in diesel engines. A small-bore single-cylinder engine was converted into an ADDF engine with the help of mature computational fluid dynamics (CFD) simulation software to investigate the performance of an engine with a high ammonia energy ratio (AER), and to study the effect of spray tilt angle on ADDF engine. The results showed that the increase in AER reduced nitric oxide (NO) and nitrogen dioxide (NO) emissions but increased nitrous oxide… More >

Yanju Wei^1,*, Jie Zhang¹, Shengcai Deng¹, Yajie Zhang¹, Yajing Yang², Hao Chen³

Energy Engineering, Vol.118, No.1, pp. 73-87, 2021, DOI:10.32604/EE.2020.012482 - 17 November 2020

Abstract The diffusion of fuel spray in swirl flow is vital for the combustion of diesel engine, however, the researches on this is still mysterious due to the obstacles on direct investigations on a real engine. The research of intake swirl in engine at present normally use CFD simulation or based on data analysis of combustion and exhaust emission, the specific mixing process of fuel in swirl flow still not very clear. In this paper, a rapid compression machine (RCM) with an optical combustion chamber was established with the mean compression velocity of 7.55 m/s. Three… More >