REALIZATION OF AN ELECTRICALLY INSULATING
DEVICE FROM COMPOSITE MATERIALS
The objective of this article is to present the final achievement of an electrical insulator, from composite materials. The composite material was selected after painstaking studies, which they duly designated for that purpose.
Keywords: composite materials, electrically insulating devices
Cuvinte cheie: materiale compozite, izolatoare electrice
INFLUENCE OF INTERFACE BATCH/MATRIX COMPOSITE
MATERIALS ON MECHANICAL PROPERTIES
The objective of this article is to present the means used for
experimental characterization of materials studied, the manufacturing process of
composite materials, specimen’s preparation test for metal surfaces required for
imaging by electron microscopy, and behavior analyzing interface/matrix.
Keywords: composite materials, resins, kaolin
Cuvinte cheie: materiale compozite, rășini, caolin
EXPERIMENTAL STUDY OF THE DIELECTRIC
BEHAVIOR OF DIGLYCIDYL ETHER
OF BISPHENOL ”A” CHARGED
Subject reinforced composite materials are extensively investigated in recent years. This study is deepened to improve the structural and dielectric characteristics of diglycidyl ether of bisphenol A (DEGBE). Dielectric properties were analysed for each batch of material. Microcompozite epoxy samples with good dispersion of nano – particles laden epoxy matrix was prepared and experienced for the dielectric constant (C) , resistance (R ) and impedance (Z) frequency (1kHz, 10kHz) . Measurements were made using a dielectric spectoscropia plateau temperature range of between 20-80 °C . The better dielectric properties of the material corresponding to the nano – fillers in a concentration of 30 % .
Keywords: DGEBA, pozzolan, dielectric constants, microstructure
Cuvinte cheie: DGEBA, rocă vulcanică, constanta dielectrică, microstructură
INCREASE PRODUCTIVITY AND REDUCE ELECTRICITY
LOSSES BY OPTIMUM SOLUTIONS FOR WIND ENERGY
GENERATORS
Decentralized energy production, currently receiving a very important
development, applicable in various industries. It covers a huge range of power
from a few kW to tens of MW. What to do is to find as many injection points in
the low voltage network. In this article we present a detailed study of the
performance of energy systems to produce electricity by using wind energy and
optimization solutions to reduce costs.
Keywords: Energy, Wind Energy, Green Energy
Cuvinte cheie: energie, centrale eoliene, energie verde
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ESTIMATION METHOD OF MAINTENANCE INTERVALS
AND TO REDUCE ENERGY CONSUMPTION
IN PROCESS EQUIPMENT
Complex technical systems are subject to inherent failures caused by
failure of equipment components in different phases of their operation. The
existence of a database on the history of operation of each piece of equipment
is absolutely necessary given that wants to establish a optimal maintenance
schedule so as to avoid the occurrence of failures due to degradation over time
components. This paper proposes a method for calculating the rate of
occurrence of disposals due to wear (degradation time) or instant accident
where an installation of process equipment.
Cuvinte cheie: mentenanţă, uzură, predicţie
Keywords: Maintenance, Wear out, Prediction