Ammonia/hydrogen mixtures in an SI-engine: Engine performance and analysis of a proposed fuel system

Hydrogen generation system for ammonia–hydrogen fuelled internal combustion engines

“…However, as a whole, NO x emissions do not exceed those obtained with the original gasoline engine version in agreement with results found by other authors [23]. Generally speaking, NO x emission is not a problem, since, in the case of stoichiometric mixture, NO x can be effectively decreased by a reducing catalyst and, in the case of lean mixture, the use of a SCR is eased by the presence of ammonia onboard.…”

“…In fact, ammonia combustion is characterized by low flame temperature, low laminar burning velocity, high ignition energy and narrow flammability limits which would strongly hinder satisfactory engine performance. Several works demonstrated that hydrogen is a suitable combustion promoter [15,23,25]. In particular, small amount of hydrogen added to air-ammonia mixture (ca.…”

Ammonia as an Alternative for Fuel Internal Combustion Engines

“…Morch suggested metal ammine complexes as an on-board ammonia storage method [10]. Proposed configuration to use metal ammine complex Mg(NH 3 ) 6 Cl 2 is shown in figure 4.…”

“…4. On board ammonia storage as Mg(NH 3 ) 6 Cl 2 [10] C. S Morch et al used a CFR engine of 612.5 cm 3 in SI setup to study the effect of hydrogen-ammonia fuel mixture on efficiency and power [10]. Several compression ratios (6.23 to 13.58) were studied in the research to explain the effect of CR on the power and efficiency.…”

Ammonia and gasoline composite liquid fuel blends emulsified with ethanol and methanol for direct displacement in internal combustion engines

“…Dual ammonia-diesel fuel systems for CI engines and ammonia-gasoline fuel systems for SI engines have been studied in the literature extensively [6][7][8][9][10]. These studies use methods such as dual fuel storage systems which inject ammonia in to the combustion chamber at the point of injection or on-board catalytic reforming of hydrogen from ammonia.…”