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Roberto Akira Yamachita

Researcher at Universidade Federal de Itajubá

Publications -  8
Citations -  101

Roberto Akira Yamachita is an academic researcher from Universidade Federal de Itajubá. The author has contributed to research in topics: Preventive maintenance & Induction motor. The author has an hindex of 5, co-authored 8 publications receiving 78 citations.

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The impact on electricity demand and emissions due to the introduction of electric cars in the São Paulo Power System

TL;DR: In this article, a comparative analysis of forecasting scenarios until 2035 for various inputs of electric cars in the whole state fleet is presented, aiming to verify the susceptibility of the model suggested, upon the introduction of electric vehicles, taking into account also the electrical and environmental impacts related to it.
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A Review of Telemetry Data Transmission in Unconventional Petroleum Environments Focused on Information Density and Reliability

TL;DR: The paper addresses a literature review of the technologies used in the transmission of measuring and logging data during well drilling and presents a discussion about efficiency in data density transmission and reliability, especially when it comes to software and automated tools.
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Assessment of the achieved savings from induction motors energy efficiency labeling in Brazil

TL;DR: In this article, the authors present a model to estimate the amount of savings obtained with the usage of the PROCEL endorsement labels in standard and in energy efficient motors, and the estimated peak demand reduction is also inferred.
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Analysis of Repairs on Three-Phase Squirrel-Cage Induction Motors Performance

TL;DR: In this paper, the effects of preventive maintenance and repairs on three-phase squirrel-cage induction motor performance regarding energy efficiency were evaluated in an industrial and repair shop setting, and the results brought interesting insights on how simple tasks can improve the energy efficiency.
Proceedings ArticleDOI

Decision Making On Generator for Wind Turbines Using the AHP Methodology

TL;DR: AHP decision making tool was employed to solve the problem of concerns related to which electrical machine must be used, need of speed amplifiers, maintenance and other important issues has been on the increase.