Search results for "Automotive Engineering"
showing 10 items of 483 documents
A regenerative braking system for internal combustion engine vehicles using supercapacitors as energy storage elements - Part 1: System analysis and …
2020
Abstract In this two-part work, an electric kinetic energy recovery system (e-KERS) for internal combustion engine vehicle (ICEV) is presented, and its performance evaluated through numerical simulations. The KERS proposed is based on the use of a supercapacitor as energy storage, interfaced to a brushless machine through a properly designed power converter. In part 1, the system is described and analysed, and the mathematical model used for the simulations is presented. For each component of the KERS, the real efficiency, and the power or energy limitations are adequately considered. In part 2, the energetic and economic advantages attainable by the proposed KERS are evaluated using MATLAB…
Effects of the air density value on a wind generator electricity production capability
2016
The paper main issue is the evaluation of the influence of the air density value on the electricity production capability of a wind generator. Two different density air mathematical models, where the density has not a constant value, are here taken into account and compared in terms of reliability, accuracy and computational burden. Evaluations are carried out thanks to a horizontal axis wind generator full model built by the Authors in Matlab/Simulink environment. Simulation results are compared with real data.
Estimates for Divergence Velocities of Axially Moving Orthotropic Thin Plates
2014
Some models for axially moving orthotropic thin plates are investigated analytically via methods of complex analysis to derive estimates for critical plate velocities. Linearised Kirchhoff plate theory is used, and the energy forms of steady-state models are considered with homogeneous and inhomogeneous tension profiles in the cross direction of the plate. With the help of the energy forms, some limits for the divergence velocity of the plate are found analytically. In numerical examples, the derived lower limits for the divergence velocity are analysed for plates with small flexural rigidity. peerReviewed
Turbo-Roundabout: Case Study of Driver Behavior and Kinematic Parameters of Light and Heavy Vehicles
2019
AbstractThis research compared kinematic and behavior parameters of light and heavy vehicles at turbo-roundabouts. This is of interest because heavy vehicles can influence turbo-roundabout function...
El anillo ecuestre áureo de Molata de Casa Vieja, Almaciles (Puebla de Don Fadrique, Granada)
2019
We here document an Iberian gold ring, which we have recently been able to study. It was found at some time between the late 1960s and mid-1980s, near Molata de Casa Vieja, one of the most important oppida in Alta Andalucía. The engraved bezel is of a schematic style, and derives from the iconic Iberian rider, ubiquitous on the pre–Roman coinage. It adds a new representation to this already rich corpus. The image of the rider was frequently used by the Iberian elite between the 3rd and 2nd centuries BC. The ring is now par t of the collection of the Archaeological Museum of Murcia. Con este artículo se pretende estudiar y documentar un anillo ibérico de oro al que hemos tenido acceso hace p…
Recomendaciones sobre el uso e indicaciones del tratamiento tópico en pacientes con colitis ulcerosa
2015
Resumen Aunque la mayoria de pacientes con colitis ulcerosa deberian recibir tratamiento topico por via rectal, los estudios de practica clinica han demostrado que este esta infrautilizado. El proposito de este articulo es el de responder a 10 preguntas concretas sobre que farmacos estan disponibles para uso topico, su forma de presentacion, formulacion, y metodos de aplicacion, asi como cual de ellos es mas eficaz y en que forma de presentacion de la colitis ulcerosa. Asi mismo, se evalua la posibilidad de combinar diferentes formulaciones y vias de administracion, y la utilidad en la fase de remision de la enfermedad. Por ultimo, se hacen una serie de recomendaciones para una mejor inform…
PEM FC Single Cell Based on a 3-D Printed Plastic Housing and Experimental Validation with the Mathematical Model
2018
Abstract This paper presents the design, modelling, and testing of a PEM single fuel cell based on the use of 3D printing. The design of the housings was made of SolidWorks, while MATLAB/SIMULINK were used to model performance. The fabricated cell performed satisfactorily with no leaks of gas, showing that the 3D printing method can be used in the additive manufacturing of fuel cells thus leading to significant cost savings.
Modelling of Compressors in an Industrial CO $$_2$$ -Based Operational Cooling System Using ANN for Energy Management Purposes
2019
Large scale cooling installations usually have high energy consumption and fluctuating power demands. There are several ways to control energy consumption and power requirements through intelligent energy and power management, such as utilizing excess heat, thermal energy storage and local renewable energy sources. Intelligent energy and power management in an operational setting is only possible if the time-varying performance of the individual components of the energy system is known. This paper presents an approach to model the compressors in an industrial, operational two-stage cooling system, with CO\(_2\) as the working fluid, located in an advanced food distribution warehouse in Norw…
5G V2V Communication With Antenna Selection Based on Context Awareness: Signaling and Performance Study
2022
Enhanced vehicle-to-everything (eV2X) communication is one of the key challenges to be addressed by the fifth generation (5G) of cellular mobile communications. In particular, eV2X includes some 5G vehicular applications targeting fully autonomous driving which require ultra-high reliability. Although vehicular communications are by default assumed between single antennas located on the roof of the transmitter and receiver vehicles, prior art has shown that there are other antenna positions more suitable for V2X communication, depending on the specific communication context. Antenna selection can be used in this case to select one specific antenna or a subset of them better suited for a cer…