@article{paperid:1090570, author = {Zareei, JAVAD and Ghadamkheir, Kourosh}, title = {The effects of variable excess air ratio and ignition timing on the performance and exhaust emissions in a direct injection Hydrogen-CNG fueled engine}, journal = {International Journal of Engine Research}, year = {2023}, volume = {24}, number = {5}, month = {May}, issn = {1468-0874}, pages = {2039--2050}, numpages = {11}, keywords = {Hydrogen addition; excess air ratio; ignition timing; performance and exhaust emission}, }