Results 21 to 30 of about 3,658 (232)

Case study on thermal design improvement of hydrazine monopropellant pipelines for satellite propulsion system

Case Studies in Thermal Engineering, 2023
The present research investigates a case study on thermal design and improvement of hydrazine monopropellant pipelines based on actual cases, in order to highlight the critical factors for thermal design when developing an onboard propulsion system for a
Kyun Ho Lee, Cho Young Han, Hui-Kyung Kim, Joo Hyun Moon   +3 more
doaj   +1 more source

Maximum Likelihood-Based Worst-Case Optimization Design of Hydrazine Propulsion System for aSatellite Orbital Transfer System under Uncertainty [PDF]

فصلنامه علوم و فناوری فضایی, 2021
In this paper, a design of a hydrazine monopropellant system is proposed based on the maximum likelihood for the presentation of uncertainties, without any specific assumptions about the type of distribution and even uncertainty in distribution ...
Alireza Toloei, Mohammad Fatehi, Behrooz Keshtegar   +2 more
doaj   +1 more source

Aluminized Enhanced Blast Explosive Based on Polysiloxane Binder

Propellants, Explosives, Pyrotechnics, Volume 47, Issue 2, February 2022., 2022
Abstract Drastic measures are taken in order to improve the properties of enhanced blast explosives. First, a binder with high reactivity as reducing agent is selected. The binder, platinum cure silicone, generates pyrophoric decomposition products in situ during the detonation.
Stefan K. Kolev, Tsvetomir T. Tsonev
wiley   +1 more source

Design and Analysis of Pressure- Swirl Fuel Injector with Full- Cone Spray for Catalytic Thruster [PDF]

علوم، فناوری و کاربردهای فضایی, 2022
The monopropellant thrusters of the situation control system are a requirement for the development and application of satellites and space capsules in space, which are high-tech and expensive. In this paper, the design and simulation of a pressure- swirl
Hadiseh Karimaei
doaj   +1 more source

Development of Hydrogen Peroxide Monopropellant Rockets [PDF]

42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2006
Alta S.p.A. (Italy) and DELTACAT Ltd. (United Kingdom) are conducting a study, funded by the European Space Agency, into the development of hydrogen peroxide monopropellant thrusters using advanced catalytic beds. The present paper focuses on the design of two different demonstration thrusters with nominal ratings of 5 N and 25 N.
CERVONE A, TORRE L, BRAMANTI C, D'AGOSTINO, LUCA, MUSKER A, ROBERTS G, SACCOCCIA G.   +6 more
openaire   +2 more sources

Thermal Decomposition, Ignition Process and Combustion Behavior of Nitrate Ester Plasticized Polyether Propellant at 0.1–3.0 MPa

International Journal of Aerospace Engineering, Volume 2022, Issue 1, 2022., 2022
Nitrate ester plasticized polyether (NEPE) propellant is widely used in solid rocket motors, having both good mechanical properties and high specific impulse. However, its ignition and combustion process are complex and need to be better understood.
Chengyin Tu, Yaya Feng, Zhigang Ling, Xiong Chen, Changsheng Zhou, Yingkun Li, Weixuan Li, Wenxiang Cai, Erkan Kayacan   +8 more
wiley   +1 more source

Finite‐time dissipative control for time‐delay Markov jump systems with conic‐type non‐linearities under guaranteed cost controller and quantiser

IET Control Theory &Applications, Volume 15, Issue 4, Page 489-498, March 2021., 2021
Abstract For a class of conic‐type non‐linear time‐delay Markov jump systems, the asynchronous dissipative output feedback controller based on the guaranteed cost control and quantiser is designed in this study. In real applications, the system and the controller modes are always non‐synchronous, so we introduce the hidden Markov model to solve this ...
Xiang Zhang, Yanyan Yin, Hai Wang, Shuping He   +3 more
wiley   +1 more source

Geometrical characterization and performance optimization of monopropellant thruster injector

Egyptian Journal of Remote Sensing and Space Sciences, 2012
The function of the injector in a monopropellant thruster is to atomize the liquid hydrazine and to distribute it over the catalyst bed as uniformly as possible. A second objective is to place the maximum amount of catalyst in contact with the propellant
T.R. Nada, A.A. Hashem
doaj   +1 more source

FMECA-Based Risk Assessment in Monopropellant Hydrazine Propulsion System [PDF]

فصلنامه علوم و فناوری فضایی, 2023
The Monopropellant Hydrazine Propulsion system is one of the most widely used types of single-agent propulsion systems to control the position or correction of satellites in orbits.
Mohammad Nadjafi, Hassan Naseh, Mehrdad Sedigh Koochaki   +2 more
doaj   +1 more source

Effect of Spherical Silver Particles Size of the Catalyst Bed on Hydrogen Peroxide Monopropellant Thruster Performance [PDF]

Journal of Applied Fluid Mechanics
In this paper, an analytical approach combined with a two-dimensional computational fluid dynamics (CFD) model is pursued to simulate the fluid flow in a monopropellant thruster for satellite propulsion systems.
F. Benzenine, C. Seladji, D. Darfilal, O. Bendermel   +3 more
doaj   +1 more source