Monday 6 April 2009

Wseas Transactions

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Transactions: WSEAS TRANSACTIONS ON SYSTEMS
Transactions ID Number: 29-171
Full Name: Hedio Tatizawa
Position: Associate Professor
Age: ON
Sex: Male
Address: Av Prof Luciano Gualberto, 1289 Sao Paulo - SP
Country: BRAZIL
Tel: 3091-2574
Tel prefix: +55 11
Fax: +55 11 3812-9251
E-mail address: hedio@iee.usp.br
Other E-mails: hedio.tatizawa@yahoo.com.br
Title of the Paper: Methodology for Assessment and Optimization of Induction Electric Motors Aiming Energy Conservation, Aided by Computer Simulation
Authors as they appear in the Paper: Mario Cesar E S Ramos, Hedio Tatizawa, Geraldo F Burani, Mario Cesar G Ramos
Email addresses of all the authors: mariocesr@gmail.com, hedio@iee.usp.br,burani@iee.usp.br, mcramos@netmogi.com.br
Number of paper pages: 10
Abstract: This paper shows a methodology for assessment and optimization of induction electric motors aiming energy conservation, through substitution of older electric motors by high-efficiency ones, including motor resizing, aided by computer simulation. Energy Diagnosis aims to provide the client with a decrease in electric energy costs, not only a decrease in demand, but as well as a decrease in consumption. This study and its application were carried out through the Electric Energy Efficiency Program promoted by the Brazilian Electric Energy Agency. These programs, which can be financed by the utilities, arouse the interest for the implementation of energy efficiency projects. Once the electric motor is an equipment of final use strongly present at industry, it is subject to new substitution, bringing satisfactory results when the diagnosis is carried out in a consistent way and following coherent procedures for its validation. The methodology adopted for the substituti!
on of these motors included an initial study, by means of measurements of electrical parameters, through the use of a power quality analyzer. Afterwards, by using a particular simulation software, the operating conditions of the electric motor and the expected economy obtained by the use of high-efficiency motors were estimated. When necessary, the motor resizing analysis provides the best rated power for the drive. The motor substitutions carried out in this motor drives efficiency improvement program resulted in yearly savings of 3.1 GWh, equivalent to 4.52% of the previously required energy.
Keywords: Electric Energy Conservation, Power Quality Analyzer, High-efficiency Motor, Motor Resizing, Simulation Software, Payback Period
EXTENSION of the file: .pdf
Special (Invited) Session: Application of Computer Simulation for the Assessment and Optimization of Induction Electric Motors Aiming to Energy Conservation
Organizer of the Session: 699-151
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