En las últimas décadas, el estudio de la evolución y desarrollo espacio-temporal de las descargas eléctricas ha adquirido una importancia capital, fundamentalmente en lo que respecta a la posibilidad de controlar en el espacio (confiar) y tiempo las diferentes especies producidas durante el desarrollo de las mismas. No obstante, el carácter...
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November 25, 2015 (v1)PublicationUploaded on: March 27, 2023
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April 27, 2018 (v1)Publication
The problem of the propagation of an electrical discharge between a spherical electrode and a plane has been solved by means of finite element methods (FEM) using a fluid approximation and assuming weak ionization and local equilibrium with the electric field. The numerical simulation of this type of problems presents the usual difficulties of...
Uploaded on: March 27, 2023 -
April 30, 2018 (v1)Publication
A multi-species model consisting of seven species has been implemented to simulate the generation and development of Trichel pulses in oxygen between a sphere (the cathode) and a plane (the anode). The spatial and temporal evolution of species is obtained by solving the continuity equations of species using a classical one-dimensional model of...
Uploaded on: March 27, 2023 -
April 14, 2023 (v1)Publication
Nanosilica coatings are considered a simple physical treatment to alleviate the effect of cohesion on powder flowability. In limestone powders, these coatings buffer the rise in cohesion at high temperatures. Here, we investigate the role of particle size in the efficiency (and resilience) of these layers. To this end, this work examines a...
Uploaded on: April 15, 2023 -
April 21, 2023 (v1)Publication
Chemical CO2 recycling in the gas phase constitutes a straightforward approach for effective CO2 conversion to added-value products like syngas or synthetic methane. In this scenario, some traditional processes such as the dry and bi-reforming of methane, the CO2 methanation and the reverse water-gas shift have gained a renewed interest from...
Uploaded on: April 23, 2023 -
January 12, 2022 (v1)Publication
Fine powders are the cornerstone of new energy storage solutions to assist concentrated solar power plants. Though, their ability to behave like fluid can be seriously affected at high temperatures. This work investigates the use of nanosilica in fine limestone (calcium carbonate, CaCO) powders to mitigate the promotion of cohesion forces at...
Uploaded on: March 27, 2023 -
January 16, 2023 (v1)Publication
This work demonstrates the first proof-of-concept of Multi-Phase Flash Sintering (MPFS). This novel tech- nique essentially consists of applying a rotating electric field to the sample by means of a multi-phase voltage source as furnace temperature increases. Several ceramic materials with different types of elec- trical conductivities are...
Uploaded on: March 24, 2023