Combustion and Emission Characteristics, and Emission Control of CNG Fueled Vehicles

摘要: Natural gas (NG) is considered as one of the most attractive alternative fuels for vehicles due to its clean-burning characteristics. Rapid growth urbanization and industrialization has multiplied transport fuel demand worldwide. Vehicle population particularly in metropolitan cities grown exponentially. Adverse effects vehicular emissions on environment human health have forced regulatory bodies impose increasingly stringent emission legislations. This necessitated use cleaner such NG sector. fuelled (NGV) several advantages low photochemical reactivity exhaust, zero evaporative emissions, minimized cold-start low-temperature suitability lean-burn operations. Compressed (CNG) been used since 1960s proven safety record. The important advantage NGV that readily available at cost worldwide, including many developing countries technologies exist transportation, storage, distribution systems are well matured. chapter reviews state-of-the-art fueled vehicles, focusing engine combustion characteristics NGVs. Worldwide prospects challenges a also included. Technical aspects CNG properties, their effect performance, discussed. Hydrogen enriched (HCNG) significantly improves mixture flammability limit thus contributing operation spark ignition (SI) engines. Hence, HCNG shown be advantageous over traditional SI engines terms economy pollutant emissions. provides an overview recent progress well. An control strategies NGVs presented towards end. Finally, main future R&D required identified.