The arcing duration of a switching operation is a critical input parameter in condition-based switchgear monitoring algorithms. In this paper we propose a new non-intrusive method that directly measures the duration of the electrical arc discharge during current interruption in switchgear. The method relies on coupling of the VHF electric fields generated by the arc. The required hardware used ...

Anisotropic ratchet conveyors (ARCs) are a recently developed microfluidic platform that transports liquid droplets through a passive, microfabricated surface pattern and applied orthogonal vibrations. In this work, three new functionalities are presented for controlling droplet transport on the ARC system. These devices can pause droplet transport (ARC gate), decide between two pathways of dro...

In order to study the flashover mechanism of polluted insulators under AC voltage, a new arc propagation criterion which is based on an arc root voltage gradient is proposed. This criterion can explain the variation of the arc root voltage gradient in the arc propagation process. Based on this criterion, a new distributed parameter electrical circuit flashover model of polluted insulators is pr...

We studied the use of low current (hundreds milliamperes) gliding arc/glow discharges for CO 2 dissociation, at atmospheric pressure, in three different configurations. All these are based on arc design with flat diverging electrodes. The discharge is mainly normal glow regime contracted positive column. gas injected from a nozzle, closest separation between A pair quartz glasses placed both si...

Single-walled carbon nanotubes (SWNTs) were synthesized by arc discharge using a non-magnetic catalyst [1] and heated in air at 440◦C for 30 minutes to open their ends. The nanotube diameters were determined by measuring the Radial Breathing Mode (RBM) frequency using Raman spectroscopy. On top a broad distribution of RBM frequencies, we found discrete peaks indicating abundance of nanotubes wi...

The affordable, robust, compact (ARC) reactor is the product of a conceptual design study aimed at reducing the size, cost, and complexity of a combined fusion nuclear science facility (FNSF) and demonstration fusion Pilot power plant. ARC is a ∼ 200−250 MWe tokamak reactor with a major radius of 3.3 m, a minor radius of 1.1 m, and an on-axis magnetic field of 9.2 T. ARC has rare earth barium c...

The effluent generated from a thermal power plant waste is a mixture of several chemicals and to identify the effect of these chemicals on soil, a case study on naturally contaminated sites at Al-Musayyib region, Hilla city in Iraq has been carried out. Soil and water samples were collected from the sites and analyzed to identify the pollutants and their effect on soil characteristics. Laborato...