Energy-harvesting thermoelectric sensing for unobtrusive water and appliance metering

Bradford Campbell, Branden Ghena, Prabal Dutta

Research output: Chapter in Book/Report/Conference proceedingConference contribution

14 Scopus citations

Abstract

Fine-grained energy metering in homes and buildings provides a promising technique for addressing the unmaintainable energy consumption levels of worldwide buildings. Metering electricity, lighting, natural gas, HVAC, occupancy, and water on a per appliance or room basis can provide invaluable insight when trying to reduce a building's energy footprint. A myriad of sensor designs and systems collect data on particular building aspects, but are often hampered by installation difficulty or ongoing maintenance needs (like battery replacement). We address these common pitfalls for water and heat metering by developing a small, energy-harvesting sensor that meters using the same thermoelectric generator with which it powers itself. In short, the rate at which the harvester captures energy is proportional to the heat production of the monitored appliance or pipe and this relationship allows us to estimate energy use simply based on the sensor's ability to harvest. We prototype our sensor in a bracelet shaped form-factor that can attach to a shower head pipe, faucet, or appliance to provide local hot water or heat metering.

Original languageEnglish (US)
Title of host publicationENSsys 2014 - Proceedings of the 2nd International Workshop on Energy Neutral Sensing Systems
PublisherAssociation for Computing Machinery
Pages7-12
Number of pages6
ISBN (Electronic)9781450331890
DOIs
StatePublished - Nov 6 2014
Externally publishedYes
Event2nd International Workshop on Energy Neutral Sensing Systems, ENSsys 2014 - Memphis, United States
Duration: Nov 6 2014Nov 6 2014

Publication series

NameENSsys 2014 - Proceedings of the 2nd International Workshop on Energy Neutral Sensing Systems

Conference

Conference2nd International Workshop on Energy Neutral Sensing Systems, ENSsys 2014
Country/TerritoryUnited States
CityMemphis
Period11/6/1411/6/14

Keywords

  • Energy metering
  • Energy-harvesting
  • Water-sensing
  • Wireless sensing

ASJC Scopus subject areas

  • Computer Science Applications
  • Energy Engineering and Power Technology
  • Fuel Technology

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