Results 61 to 70 of about 1,875 (170)

Development and Optimization of a Catalytic Thruster for Hydrogen Peroxide Decomposition

Journal of Aerospace Technology and Management, 2014
Hydrogen peroxide is a non toxic, low cost, green monopropellant with a significant potential for applications in satellite microthrusters. It presents a density-specific impulse, similar to hydrazine. A new bulk mixed oxide catalyst for decomposition of
Fernanda Francisca Maia, Leonardo Henrique Gouvea, Luis Gustavo Ferroni Pereira, Ricardo Vieira, Fernando de Souza Costa   +4 more
doaj  

Monopropellant thruster exhaust plume contamination measurements [PDF]

The potential spacecraft contaminants in the exhaust plume of a 0.89N monopropellant hydrazine thruster were measured in an ultrahigh quartz crystal microbalances located at angles of approximately 0 deg, + 15 deg and + or - 30 deg with respect to the ...
Baerwald, R. K., Passamaneck, R. S.
core   +1 more source

NASA Ares I Launch Vehicle Roll and Reaction Control Systems Design Status [PDF]

, 2009
This paper provides an update of design status following the preliminary design review of NASA s Ares I first stage roll and upper stage reaction control systems.
Butt, Adam, Pitts, Hank M., Popp, Chris G., Sharp, David J.   +3 more
core   +1 more source

Mass and power modeling of communication satellites [PDF]

Analytic estimating relationships for the mass and power requirements for major satellite subsystems are described. The model for each subsystem is keyed to the performance drivers and system requirements that influence their selection and use ...
Pidgeon, David, Price, Kent M., Tsao, Alex   +2 more
core   +1 more source

Experimental evaluation of high-thrust, throttleable, monopropellant hydrazine reactors [PDF]

Throttleable monopropellant hydrazine catalytic reactors of a size applicable to a planetary landing vehicle were designed, fabricated, and tested. An experimental evaluation of two 2670-N reactor designs was conducted.
Kruger, G. W., Riebling, R. W.
core   +1 more source

Propulsion simulation for magnetically suspended wind tunnel models [PDF]

The feasibility of simulating propulsion-induced aerodynamic effects on scaled aircraft models in wind tunnels employing Magnetic Suspension and Balance Systems. The investigation concerned itself with techniques of generating exhaust jets of appropriate
Beerman, Henry P., Chen, James, Joshi, Prakash B., Krech, Robert H., Lintz, Andrew L., Rosen, David I.   +5 more
core   +1 more source

Re-Entry Comparison of a Spacecraft in Low Earth Orbit: Propulsion-Assisted vs. Non-Propulsive Configurations

Aerospace
This paper presents a mission concept for a Low Earth Orbit (LEO) satellite equipped with a payload for space experiments, designed to be recovered on Earth post-mission.
Antonio Sannino, Dylan De Prisco, Sergio Cassese, Stefano Mungiguerra, Anselmo Cecere, Raffaele Savino   +5 more
doaj   +1 more source

PARAS program: Phased array radio astronomy from space [PDF]

An orbiting radio telescope is proposed which, when operated in a Very Long Baseline Interferometry (VLBLI) scheme, would allow higher (than currently available) angular resolution and dynamic range in the maps, and the ability of observing rapidly ...
Dungan, Michael, Haynes, David A., Hoffmann, Chris, Jakubowski, Antoni K., Madden, Michael, Nuss, Ken   +5 more
core   +1 more source

Spark-integrated propellant injector head with flashback barrier [PDF]

, 2012
High performance propellants flow through specialized mechanical hardware that allows for effective and safe thermal decomposition and/or combustion of the propellants.
Fisher, David James, Mungas, Christopher, Mungas, Gregory Stuart   +2 more
core   +1 more source

Preparation and Performance Evaluation of Platinum Barium Hexaaluminate Catalyst for Green Propellant Hydroxylamine Nitrate Thrusters. [PDF]

Materials (Basel), 2021
Kang S, Kwon S.
europepmc   +1 more source