Results 11 to 20 of about 40,291 (312)

Combustion Characteristics of a Swirl-Radial-Injection Composite Fuel Grain with Applications in Hybrid Rockets

open access: yesAerospace, 2023
The combustion characteristics of a swirl-radial-injection composite fuel grain were experimentally and numerically investigated. This composite grain permits swirl-radial oxidizer injection based on three hollow helical blades, each having a constant ...
Ruoyan Wang   +7 more
doaj   +1 more source

Techno-economic analysis of chemical looping combustion with humid air turbine power cycle [PDF]

open access: yes, 2014
Power generation from fossil fuel-fired power plant is the largest single source of CO₂ emission. CO₂ emission contributes to climate change. On the other hand, renewable energy is hindered by complex constraints in dealing with large scale application ...
Brandvoll   +6 more
core   +2 more sources

Rocket Solid Propellant Alternative Based on Ammonium Dinitramide [PDF]

open access: yesINCAS Bulletin, 2017
Due to the continuous run for a green environment the current article proposes a new type of solid propellant based on the fairly new synthesized oxidizer, ammonium dinitramide (ADN).
Grigore CICAN, Alexandru-Daniel MITRACHE
doaj   +1 more source

Flame spread in laminar mixing layers: the triple flame [PDF]

open access: yes, 1993
In the present paper we investígate flame spread in laminar mixing layers both experimentally and numerically. First, a burner has been designed and built such that stationary triple ñames can be stabilised in a coflowing stream with well defined linear ...
Bray, K.N.C.   +3 more
core   +2 more sources

Synthesis Gas Composition Prediction for Underground Coal Gasification Using a Thermochemical Equilibrium Modeling Approach

open access: yesEnergies, 2020
Underground coal gasification (UCG) is an in situ conversion technique that enables the production of high-calorific synthesis gas from resources that are economically not minable by conventional methods. A broad range of end-use options is available for
Christopher Otto, Thomas Kempka
doaj   +1 more source

Characteristics of Ozone Production by Using Atmospheric Surface Glow Barrier Discharge

open access: yesWalailak Journal of Science and Technology, 2011
Ozone is a strong oxidizer that can kill bacteria and other micro-organisms very effectively. In the recent years, ozone has become very important for sterilization of water used in shrimp farming and treatment of wastewater from food industry.
Mudtorlep NISOA, Thammanoon SRINUAM
doaj   +1 more source

Modeling and analytical simulation of high-temperature gas filtration combustion

open access: yesJournal of Applied Sciences and Environmental Management, 2017
High temperature filtration in combustion and gasification processes is a highly interdisciplinary field. Thus, particle technology in general has to be supported by elements of physics, chemistry, thermodynamics and heat and mass transfer processes ...
M Ibrahim   +4 more
doaj   +1 more source

Crystal structure of bis(fluorosulfato-κO)xenon(II), Xe(SO3F)2

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
Thermally unstable Xe(SO3F)2 has been prepared by the reaction of XeF2 with HSO3F. Single crystals were obtained from HSO3F by slow cooling in a sealed tube.
Moritz Malischewski, Konrad Seppelt
doaj   +1 more source

ADN – The new oxidizer around the corner for an environmentally friendly smokeless propellant [PDF]

open access: yesJournal of Aerospace Technology and Management, 2009
The search for a smokeless propellant has encouraged scientists and engineers to look for a chlorine-free oxidizer as a substitute for AP (ammonium perchlorate).
Márcio Y. Nagamachi   +3 more
doaj  

Application of ozone in the treatment of periodontal disease

open access: yesJournal of Pharmacy and Bioallied Sciences, 2013
Gingivitis and periodontitis are most common inflammatory diseases of supporting tissues of teeth. Role of microbial etiology and host response in progression of gingival and periodontal diseases has been well established.
Adusumilli Srikanth   +2 more
doaj   +1 more source

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