Results 11 to 20 of about 1,875 (170)

Effects of Geometrical Parameters of a Two-Sided Catalyst Bed on Flow and Thermal Fields of a Monopropellant Hydrazine Thruster [PDF]

فصلنامه علوم و فناوری فضایی, 2022
In present study, a hydrazine based monopropellant thruster decomposition chamber is simulated numerically. The catalyst bed separated in two sides, the particles size in upstream side is larger than those in downstream side.
Mohammad Reza Salimi
doaj   +1 more source

Combustion Wave Structure of the Ammonium Dinitramide‐Based Ionic Liquid Propellant

Propellants, Explosives, Pyrotechnics, Volume 48, Issue 2, February 2023., 2023
Abstract The ammonium dinitramide‐based ionic liquid propellant (ADN‐based ILP), which is a mixture of ADN, monomethylamine nitrate (MMAN), and urea, is a low toxic monopropellant with a higher performance than that of hydrazine. To clarify the combustion wave structure of ADN‐based ILP, which has low volatility, we focused on the relationship between ...
Yuichiro Ide, Yu‐ichiro Izato, Mitsuo Koshi, Atsumi Miyake, Hiroto Habu, Shinichiro Tokudome   +5 more
wiley   +1 more source

Microfluidic Tissue Engineering and Bio‐Actuation

Advanced Materials, Volume 34, Issue 23, June 9, 2022., 2022
Microfluidics enables the engineering of biological tissues through micro‐precision control over the cell microenvironment, fabrication of cell‐laden matrices, and distribution of fluids to perfuse 3D tissue constructs. In particular, microfluidically‐advanced functional muscle tissues can be used as performant actuators in the next generation of bio ...
Miriam Filippi, Thomas Buchner, Oncay Yasa, Stefan Weirich, Robert K. Katzschmann   +4 more
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

Effect of Injector Pressure Drop on The ‎Performance of A 1 N Monopropellant ‎Thruster [PDF]

فصلنامه علوم و فناوری فضایی, 2022
The effects of injector pressure drop on the performance of a catalytic reactor are studied experimentally. The injectors were simple orifices. Dynamic interactions between the injector and the reactor determine the transient behavior of the system ...
Alireza Rajabi, Noordin Qadiri Massoom, Mohammadali Amirifar, Seyyed Rashad Rouholamini, Pouria Mikaniki, Mohammad Ghorbi, Majid Kamranifar   +6 more
doaj   +1 more source

Low Cost Catalysts for Hydrazine Monopropellant Thrusters [PDF]

45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2009
Hydrazine monopropellant engines are widely used in space missions; mainly in reaction control systems. The most widely used catalyst is the aluminum oxide supported iridium. It is also very expensive. The cost of the catalyst weights heavily, especially in the high thrust, short life thrusters used for roll control of launch vehicles. In this paper we
José Hinckel, José Jorge, Turíbio Soares, Marisa Zacharias, Jalusa Palandi   +4 more
openaire   +1 more source

Micro Coriolis mass flow censor with extended range for a monopropellant micro propulsion system [PDF]

, 2013
We have designed and realised a micromachined micro Coriolis flow sensor for the measurement of hydrazine (N2H4, High Purity Grade) propellant flow in micro chemical propulsion systems.
Dijkstra, M.A., Droogendijk, H., Groenesteijn, J., Lammerink, T.S.J., Lötters, J.C., Wiegerink, R.J.   +5 more
core   +10 more sources

Reactor Structure for the Decomposition of ADN-Based Monopropellant

Aerospace, 2023
Ammonia dinitramide (ADN)-based liquid monopropellants are considered to be environmentally friendly alternatives to the toxic and carcinogenic hydrazine-based propellants. Hence, Space Solutions Co., Ltd.
Wonjae Yoon, Vikas Khandu Bhosale, Hosung Yoon   +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

Foundations for Soft, Smart Matter by Active Mechanical Metamaterials

Advanced Science, Volume 7, Issue 18, September 23, 2020., 2020
An emerging field of active mechanical metamaterials establishes foundations for soft, smart engineered matter that may autonomously operate in diverse future applications. This Review surveys advances in mechanical design, material formulation, sensory mechanisms, and control integration that are strategically synthesized in active mechanical ...
Maya Pishvar, Ryan L. Harne
wiley   +1 more source