A new concept to harvest thermal energy using pyroeletric effect and Rayleigh-Benard convections

Fatnani, Fatima Zahra El; Guyomar, Daniel; Belhora, Fouad; Mazroui, M.; Boughaleb, Y.; Hajjaji, Abdelowahed

doi:10.1140/epjp/i2016-16252-x

Cited by 15 publications

(10 citation statements)

References 22 publications

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“…The typical thickness of the sample was around 0.2 mm. Similar PZT buzzer was previously used for energy harvesting studies . Two wires were soldered from the upper ceramic portion and lower metallic portion, which acted as electrodes.…”

Section: Methodsmentioning

confidence: 99%

“…A Phillips IR lamp (250 W) and a water block were used to generate temperature fluctuations across the upper surface of coated and uncoated samples. Similar setups were close to real time applications and were explored by several researchers . The sample was heated by switching the lamp ON and OFF from 1 to 5 s by placing it 1 cm away from the sample, while it was continuously cooled through water flow (25 °C) below its surface.…”

Section: Methodsmentioning

confidence: 99%

“…Similar PZT buzzer was previously used for energy harvesting studies. [35,36] Two wires were soldered from the upper ceramic portion and lower metallic portion, which acted as electrodes. A Phillips IR lamp (250 W) and a water block were used to generate temperature fluctuations across the upper surface of coated and uncoated samples.…”

Section: Methodsmentioning

confidence: 99%

“…Similar setups were close to real time applications and were explored by several researchers. [36][37][38][39][40][41][42][43] The sample was heated by switching the lamp ON and OFF from 1 to 5 s by placing it 1 cm away from the sample, while it was continuously cooled through water flow (25 °C) below its surface. The variation of surface temperature, open circuit voltage, and current across a 10 Ω resistor were recorded using an electronic true-rmsmultimeter (Fluke 287).…”

Section: Methodsmentioning

confidence: 99%

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Diesel Exhaust Emission Soot Coated Pyroelectric Materials for Improved Thermal Energy Harvesting

Azad¹,

Sharma

Vaish

2019

Global Challenges

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Pyroelectric performance is significantly improved using a coating of diesel exhaust soot. Coated pyroelectric sample (lead zirconate titanate) is exposed to a temporal temperature gradient. Under the application of infrared (IR) heating for a given temperature gradient, the maximum open circuit voltage improves more than four times, electric current across a resistance of 10 ohm improves more than six times, and the stored energy in 10 µF capacitor is enhanced by 17 times. These results are important from two aspects: 1) utilization of waste diesel exhaust soot and 2) improving energy harvesting performance of pyroelectric materials.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Diesel Exhaust Emission Soot Coated Pyroelectric Materials for Improved Thermal Energy Harvesting

Azad¹,

Sharma

Vaish

2019

Global Challenges

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“…Piezoelectric polymers represent a specific class of smart electroactive materials that find numerous industrial applications. The direct piezoelectric effect, that is, conversion of stress/strain into surface charges, has been widely used in sensor devices with new applications in piezoelectric energy harvesters whereas the inverse piezoelectric effect could be used for actuator devices .…”

Section: Introductionmentioning

confidence: 99%

Dielectric and mechanical optimization properties of porous poly(ethylene‐co‐vinyl acetate) copolymer films for pseudo‐piezoelectric effect

Ennawaoui¹,

Lifi²,

Hajjaji³

et al. 2019

Polymer Engineering & Sci

Self Cite

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In this article, the authors present a porous copolymer film with pseudo‐piezoelectric effects as a new candidate material for sensing applications. Porous films of poly(ethylene‐co‐vinyl acetate) (EVA) with a thicknesses ranging from 160 to 310 μm are fabricated by a coextrusion chemical foaming process and charged using a high‐voltage contact charging process. Output performances (piezoelectric constant and relative permittivity) with related thermal/mechanical stability are specifically studied as a function of the film porosity and of the electrical charging process. The piezoelectric constant d33 increases with the cell porosity and an interesting piezoelectric constant close to 5.1 pC/N is achieved with a porous EVA film containing 65% of porosity. Actual results are then discussed using a theoretical solid–gas multilayer model to describe and predict the pseudo‐piezoelectric effect of porous polymer materials. The originality of this work lies in the fact that all the steps leading to optimize pseudo piezoelectric films are included, and also in the use of EVA which is not a standard piezoelectric material. Therefore, this work is a contribution in the development of low‐cost piezoelectric materials with potential applications as sensor in different fields such as medical, security, environment, sport, and transport. POLYM. ENG. SCI., 59:1455–1461 2019. © 2019 Society of Plastics Engineers

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Large Gain in Pyroelectric Energy Conversion through a Candle Soot Coating

et al. 2018

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A large gain in pyroelectric voltage and current when exposed to infrared radiation after candle soot coating on material surfaces is reported. A piezoelectric buzzer is selected to quantify the effect of candle soot on pyroelectric output. For a given temperature change, the peak value of the open‐circuit voltage is enhanced from 2 V to 8 V and electric current is boosted from 15 nA to 95 nA. A load capacitor is also connected through a full wave rectifier. Energy storage in a 10 μF load capacitor is increased from 5 nJ to 70 nJ.

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A new concept to harvest thermal energy using pyroeletric effect and Rayleigh-Benard convections

Cited by 15 publications

References 22 publications

Diesel Exhaust Emission Soot Coated Pyroelectric Materials for Improved Thermal Energy Harvesting

Diesel Exhaust Emission Soot Coated Pyroelectric Materials for Improved Thermal Energy Harvesting

Dielectric and mechanical optimization properties of porous poly(ethylene‐co‐vinyl acetate) copolymer films for pseudo‐piezoelectric effect

Large Gain in Pyroelectric Energy Conversion through a Candle Soot Coating

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