Heat Storage Thermoelectric Generator for Wireless IOT Sensing Systems

Truong Thi Kim Tuoi, Nguyen Van Toan, Takahito Ono

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

Abstract

This paper demonstrates a new approach using a thermoelectric generator (TEG) which converts thermal energy from ambient temperature fluctuations into electricity for the power source of portable devices. Theoretical modeling and experimental validation of a thermoelectric generator integrated with a phase change material (PCM) are reported in this paper. The proposed device converts the ambient temperature variations into a temperature difference on the TEG using a PCM, thus temperature variations can produce electrical energy. The maximum output power can reach 0.6 mW which corresponds to a power density of 37.5 W/cm2 under the ambient temperature variants from 5°C to 35°C (using the temperature-controlled oven). The electric power generated by TEG can be stored in a capacitor via a DC-DC converter. The maximum output power and the storable energy in the capacitor are 30 W and 500 mJ, respectively, under ambient temperature fluctuations near room temperature. The investigation in this work could possibly lead to high potential for battery-free wireless sensing systems.

Original languageEnglish
Title of host publication21st International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages924-927
Number of pages4
ISBN (Electronic)9781665412674
DOIs
Publication statusPublished - 2021 Jun 20
Event21st International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2021 - Virtual, Online, United States
Duration: 2021 Jun 202021 Jun 25

Publication series

Name21st International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2021

Conference

Conference21st International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2021
Country/TerritoryUnited States
CityVirtual, Online
Period21/6/2021/6/25

Keywords

  • ambient temperature environment
  • low-power application
  • phase change material
  • Thermoelectric power generator
  • wireless IoT sensor

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Control and Optimization
  • Instrumentation

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