Performance evaluation of the hypergolic green propellants based on the HTP for a future next generation spacecrafts

Designing Difunctional Promoters for Hypergolic Ignitions of Green Bipropellants Combining Ionic Liquids with H2O2

“…A short IDT means a short initial reaction time with the oxidizer, high combustion quality, and low risk of engine explosion. Generally, the IDT in terms of delay of ignition in a combustion chamber should be lower than 100 ms for appropriate and reliable working of the liquid rocket engines. , The hypergolic performance of the promoter-containing ionic liquids with 90%H 2 O 2 was measured by using the “oxidizer-to-fuel” droplet addition methodology, for which the process was monitored by a high-speed camera. When 90%H 2 O 2 drop came in contact with pure AMIMDCA or BMIMDCA, no detectable flame was observed due to their low hypergolic properties.…”

Green bipropellant development – A study on the hypergolicity of imidazole thiocyanate ionic liquids with hydrogen peroxide in an automated drop test setup

“…These additives either take effect on the decomposition of hydrogen peroxide or directly reduce the hydrogen peroxide. Such developments have recently been conducted by research groups at the Institute of Aviation in Poland [7][8][9] and the Korea Advanced Institute of Science and Technology in South Korea [10][11][12][13].…”

Increasingly Safe, High-Energy Propulsion System for Nano-Satellites

“…The hydrides that are being analyzed, are highly reactive and require a controlled setting for their processing, as well as additional safety provisions when building a propulsion system. At present, hydrides are studied as high-energy and hypergolic additives [9], [10].…”