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Effect of thickness, processing technique and cooling rate protocol on the μTBS of a bilayer ceramic system
(2015-01-01)
Purpose: To evaluate the influence of different processing techniques, ceramic thicknesses, and cooling rate protocols on the μTBS of a veneering ceramic to zirconia (Y-TZP). Materials and Methods: Eighty Y-TZP ceramic ...
Análise térmica de radiadores de transformadores elétricos utilizando o método de elementos finitos
(Universidade Federal de Santa MariaBrasilUFSMCentro de Tecnologia, 2019-07-10)
As any other electric equipment, transformers have efficiency lower than 100%. The “lost” energy is dissipated as heat in the active part of the machine and later this heat must be transferred to the outside environment, ...
Estudo da temperatura em ferramentas de usinagem com canais de refrigeração internos no torneamento do ferro fundido cinzentoStudy of temperature in machining tools with internal cooling channels in turning of gray cast iron
(Universidade Federal de UberlândiaBrasilPrograma de Pós-graduação em Engenharia Mecânica, 2021)
Performance evaluation of various cooling-lubrication techniques in grinding of hardened AISI 4340 steel with vitrified bonded CBN wheel
(2017-10-01)
In the grinding process, to achieve improved tribological conditions between wheel-chip-workpiece interfaces and minimize the effects of thermal damages, such as loss of hardness and cracks for example, it is needed to ...
Desenvolvimento de uma torre automatizada para o resfriamento de água
(Universidade Tecnológica Federal do ParanáCuritibaDepartamento Acadêmico de Eletrotécnica, 2014-09-13)
The present work refers to the development and assembly of an academic bench, which represents a closed loop system that simulates an automated water cooling tower. It presents bibliographical survey for theoretical-conceptual ...
COMPORTAMIENTO DE DIFERENTES DISPOSITIVOS DE EXPANSIÓN AL INSTALAR UN MODULO TERMOELÉCTRICO EN UN SISTEMA DE REFRIGERACIÓN
(2011-12-09)
In this work we present the experimental results is made to a system of vapor compression
refrigeration low capacity. Analyzing the behavior of different expansion devices to install a
thermoelectric module with a ...