Liquid rocket propellants

Liquid rocket propellant refers to a type of fuel used in rocket engines that can burn without the need for external oxygen. It can either be a single fuel such as hydrazine or a combination of fuel and oxidizer such as methanol and nitric acid. When the liquid rocket propellant is converted from a liquid to a gaseous state, it is expelled from the engine and creates thrust through an exothermal reaction that releases heat.From: Nuclear, Chemical, and Biological Terrorism [2018], Aircraft Propulsion and Gas Turbine Engines [2017]

Rocket Engines

View Chapter

Purchase Book

Published in Ahmed F. El-Sayed, Aircraft Propulsion and Gas Turbine Engines, 2017

Ahmed F. El-Sayed

A liquid-propellant rocket engine (LRE) is a direct reaction engine using the liquid propellants (fuel and oxidizer) in liquid form stored on a flight vehicle board for thrust creation. Since propellant flow rates are extremely large for high-thrust engines (often hundreds of gallons per second), liquids are desirable because their reasonably high density allows the volume of the propellant tanks to be relatively low. When the liquid rocket propellant (LRP) is converted from a liquid state to gaseous state, it then discharges from the engine and creates thrust as a result of the exothermal reaction associated with heat release.

Preparation and characterization of graphene oxide/O-carboxymethyl chitosan (GO/CMC) composite and its unsymmetrical dimethylhydrazine (UDMH) adsorption performance from wastewater

View Article

Journal Information

Published in Environmental Technology, 2023

Jun Su, Ying Jia, Ruomeng Hou, Yuanzheng Huang, Keke Shen, Zhaowen Hao

Unsymmetrical dimethylhydrazine (UDMH, (CH3)2NNH3) is a high-energy liquid rocket propellant with good performance [1]. The large amount of UDMH wastewater generated by its leakage and emergency disposal poses a major threat to the environment and humans. UDMH can lead to carcinogenic, mutagenic, convulsive, teratogenic, embryotoxic, and other adverse consequences [2]. Hence, UDMH is known as a highly dangerous toxic substance with the maximum permissible concentration in ambient water as low as 0.02 mg · L−1 [3]. Therefore, the removal of UDMH is highly significant and desirable.

Liquid rocket propellants

Explore chapters and articles related to this topic

Rocket Engines

Preparation and characterization of graphene oxide/O-carboxymethyl chitosan (GO/CMC) composite and its unsymmetrical dimethylhydrazine (UDMH) adsorption performance from wastewater