Insights into the Reaction Kinetics of Hydrazine-Based Fuels: A Comprehensive Review of Theoretical and Experimental Methods

While researchers have extensively studied the initial decomposition mechanism of Monomethylhydrazine (MMH, CH3NHNH2) in MMH/dinitrogen tetroxide (NTO) system, investigation Unsymmetrical Dimethylhydrazine (UDMH, (CH3)2NNH2) has been limited due to its high toxicity, corrosiveness, and deterioration rate. Hence, effects UDMH’s products on combustion performance gas-phase reaction mechanisms remain unclear. This comprehensive review examines existing research kinetics three widely used hydrazine-based self-ignition propellants: Hydrazine (HZ, N2H4): MMH: UDMH, emphasizing necessity for further into UDMH. It also discusses implications these findings developing safer more efficient rocket propulsion systems. Additionally, this underscores importance utilizing computational chemistry theory analyze fuels’ properties, constructing detailed pyrolysis optimize engine fuel environmental concerns.