Modeling of a honeycomb-shaped pyroelectric energy harvester for human body heat harvesting

Myoung Soo Kim, Sung Eun Jo, Hye Rin Ahn, Yong Jun Kim

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Pyroelectric conversion can be used for thermal energy harvesting in lieu of thermoelectric conversion. In the case of human body energy harvesting, the general pyroelectric energy harvester (PEH) cannot be applied because the weak body heat can hardly penetrate the protecting layer to reach the pyroelectric material. This paper presents the realization of a honeycomb-shaped PEH (H-PEH) and a modeling method of the electrode and hole areas. The fabricated H-PEH successfully generated electrical energy using human body heat. The H-PEH with a 1:1.5 electrode-and-hole area ratio showed the best performance. To verify the human energy harvesting, we evaluated the characteristics of conventional PEH and H-PEH when body heat was used as a heat source. The maximum power of the H-PEH was 0.06 and 0.16 μW at wind velocities of 2 and 4 m s-1, respectively. These output power values of the H-PEH were 200 and 224% larger than those of the PEH, respectively, according to the wind velocity.

Original languageEnglish
Article number065032
JournalSmart Materials and Structures
Volume24
Issue number6
DOIs
Publication statusPublished - 2015 Jun 1

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Harvesters
human body
Energy harvesting
heat
wind velocity
Electrodes
energy
Thermal energy
electrodes
heat sources
electric power
thermal energy
Hot Temperature
output

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Civil and Structural Engineering
  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Electrical and Electronic Engineering

Cite this

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title = "Modeling of a honeycomb-shaped pyroelectric energy harvester for human body heat harvesting",
abstract = "Pyroelectric conversion can be used for thermal energy harvesting in lieu of thermoelectric conversion. In the case of human body energy harvesting, the general pyroelectric energy harvester (PEH) cannot be applied because the weak body heat can hardly penetrate the protecting layer to reach the pyroelectric material. This paper presents the realization of a honeycomb-shaped PEH (H-PEH) and a modeling method of the electrode and hole areas. The fabricated H-PEH successfully generated electrical energy using human body heat. The H-PEH with a 1:1.5 electrode-and-hole area ratio showed the best performance. To verify the human energy harvesting, we evaluated the characteristics of conventional PEH and H-PEH when body heat was used as a heat source. The maximum power of the H-PEH was 0.06 and 0.16 μW at wind velocities of 2 and 4 m s-1, respectively. These output power values of the H-PEH were 200 and 224{\%} larger than those of the PEH, respectively, according to the wind velocity.",
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Modeling of a honeycomb-shaped pyroelectric energy harvester for human body heat harvesting. / Kim, Myoung Soo; Jo, Sung Eun; Ahn, Hye Rin; Kim, Yong Jun.

In: Smart Materials and Structures, Vol. 24, No. 6, 065032, 01.06.2015.

Research output: Contribution to journalArticle

TY - JOUR

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AU - Jo, Sung Eun

AU - Ahn, Hye Rin

AU - Kim, Yong Jun

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N2 - Pyroelectric conversion can be used for thermal energy harvesting in lieu of thermoelectric conversion. In the case of human body energy harvesting, the general pyroelectric energy harvester (PEH) cannot be applied because the weak body heat can hardly penetrate the protecting layer to reach the pyroelectric material. This paper presents the realization of a honeycomb-shaped PEH (H-PEH) and a modeling method of the electrode and hole areas. The fabricated H-PEH successfully generated electrical energy using human body heat. The H-PEH with a 1:1.5 electrode-and-hole area ratio showed the best performance. To verify the human energy harvesting, we evaluated the characteristics of conventional PEH and H-PEH when body heat was used as a heat source. The maximum power of the H-PEH was 0.06 and 0.16 μW at wind velocities of 2 and 4 m s-1, respectively. These output power values of the H-PEH were 200 and 224% larger than those of the PEH, respectively, according to the wind velocity.

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