Greenhouse Gas and CO 2 -Equivalent Emissions Analysis of SI Engine Fueled by Hydrogen-Enriched Compressed Natural Gas (HCNG). - Salam, Hamza Ahmad; Farhan, Muhammad; Zhang, Guoqiang; Chen, Tianhao; Shahid, Muhammad Ihsan; Rao, Anas; Jiang, Long; Li, Xin; Ma, Fanhua (Energies (19961073), 2026)