Next Article in Journal
Node Deployment Algorithm Based on Connected Tree for Underwater Sensor Networks
Previous Article in Journal
A Wireless Passive LC Resonant Sensor Based on LTCC under High-Temperature/Pressure Environments
Article Menu

Export Article

Open AccessArticle
Sensors 2015, 15(7), 16740-16762; doi:10.3390/s150716740

Non-Destructive Current Sensing for Energy Efficiency Monitoring in Buildings with Environmental Certification

Pontifical Catholic University of Campinas, CEATEC, Campus I, Rod. Dom Pedro I, Km136, CEP 13086-900, Campinas, São Paulo, Brazil
*
Author to whom correspondence should be addressed.
Academic Editor: Vittorio M.N. Passaro
Received: 16 April 2015 / Revised: 1 July 2015 / Accepted: 6 July 2015 / Published: 10 July 2015
(This article belongs to the Section Physical Sensors)
View Full-Text   |   Download PDF [2421 KB, uploaded 10 July 2015]   |  

Abstract

Nowadays, buildings environmental certifications encourage the implementation of initiatives aiming to increase energy efficiency in buildings. In these certification systems, increased energy efficiency arising from such initiatives must be demonstrated. Thus, a challenge to be faced is how to check the increase in energy efficiency related to each of the employed initiatives without a considerable building retrofit. In this context, this work presents a non-destructive method for electric current sensing to assess implemented initiatives to increase energy efficiency in buildings with environmental certification. This method proposes the use of a sensor that can be installed directly in the low voltage electrical circuit conductors that are powering the initiative under evaluation, without the need for reforms that result in significant costs, repair, and maintenance. The proposed sensor consists of three elements: an air-core transformer current sensor, an amplifying/filtering stage, and a microprocessor. A prototype of the proposed sensor was developed and tests were performed to validate this sensor. Based on laboratory tests, it was possible to characterize the proposed current sensor with respect to the number of turns and cross-sectional area of the primary and secondary coils. Furthermore, using the Least Squares Method, it was possible to determine the efficiency of the air core transformer current sensor (the best efficiency found, considering different test conditions, was 2%), which leads to a linear output response. View Full-Text
Keywords: non-destructive method; current sensor; energy efficiency; energy consumption; air-core transformer; building certification non-destructive method; current sensor; energy efficiency; energy consumption; air-core transformer; building certification
Figures

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Mota, L.T.M.; Mota, A.A.; Coiado, L.C. Non-Destructive Current Sensing for Energy Efficiency Monitoring in Buildings with Environmental Certification. Sensors 2015, 15, 16740-16762.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top