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Non-equilibrium plasma-assisted combustion has been extensively studied over the last few decades and has shown promising effects on combustion controlling, such as reducing ignition delay time, increasing flame propagation speed, enhancing flame stabilization and so on. In this paper, we investigated on the characteristics of dielectric barrier discharge (DBD) in methane with parallel-plate and multi-needle-to-plate...
Nowadays, water pollution is one of the most important issues on which much attention has been paid. As an effective water treatment method, activated sludge process has been widely used for water purification. However, excess sludge that results from the water treatment still brings pollution to environment. Anaerobic digestion has been used in a broad range of applications in excess sludge stabilization...
In this paper, a novel betavoltaic (BV) microcell based on semiconducting single-walled carbon nanotube (s-SWCNT) arrays/Si heterojunctions are demonstrated for the first time. The aligned arrays of p-type s-SWCNTs were prepared on n-type silicon to form the p-n heterojunctions as energy conversion by the traditional micro-fabrication process and dielectrophoretic (DEP) technology. The s-SWCNT arrays/Si...
This paper reports a new type betavoltaic (BV) microcell based on intrinsic p-type semiconductive single-walled carbon nanotubes (s-SWNTs). Our device composes of Au and Ti asymmetrical electrode pairs with s-SWNTs laid over them forming Schottky junction with Ti and ohmic contact with Au. SWNT bundles were self-assembled between Au and Ti electrodes by Dieletrophoretic (DEP) technique, and metallic...
A single-walled carbon-nanotube-array-based (SWCNT) strain sensor was proposed and its fabrication technique was presented, which afforded more simple process than individual SWCNT-based sensor. A novel selective treatment of strain-based electrical breakdown was utilized to leave the SGS-SWCNTs with high gauge factor in the array. The SWCNT-array strain sensor were used for weighing experiment and...
During the interruption process of SF6 circuit breaker, electrode erosion will occur inevitably, which leads to the contamination of pure SF6 and the alteration of arc characteristics. In the paper, to one puffer type circuit breaker, simulation studies are focused on the application of Spalart-Allmaras model for turbulence and species transport model for metallic vapour diffusion. In addition, the...
The performance of Electrodynamic Screen (EDS) for surface cleaning was characterized with respect to the following operational parameters: (1) the efficiency of screens under both continuous and intermittent operations with different rates of dust deposition, (2) electrical power requirements for the screen operation with respect frequency of excitation and duration of the applied power needed to...
Dispersion of fine dry powders in the size range 1.0 to 10.0 mum in aerodynamic diameters requires a high energy dispersive force since the powders in this size range are very cohesive and their dispersion by vibrational, centrifugal or by aerodynamic force (using air currents) is inefficient in most cases. The adhesive force, that includes van der Waals, electrostatic, and liquid bridge forces, is,...
Using a ultraviolet camera, CoroCAM IV+, and a specially-designed pulse current sensor, the corona discharge at the tip-of-an-icicle/iced-plate electrode system was studied under DC+ and at low atmospheric pressure. The effects of the atmospheric pressure on the corona inception voltage, corona discharge type, discharge current waveforms and charge quantity were investigated. Based on the experimental...
This paper presents the results of a series of experiments on the corona discharges occurring at icicle tips under negative DC voltage, using an icicle-iced-plate electrode system. The corona discharge development processes and the responding discharge current pulses were recorded. The influences of the gap distance, the icicle surface state and the freezing water conductivity on the corona inception...
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