Pyroelectric waste heat energy harvesting using heat conduction

Lee, Felix Y.; Navid, Ashcon; Pilon, Laurent

doi:10.1016/j.applthermaleng.2011.12.034

Cited by 99 publications

(75 citation statements)

References 31 publications

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“…Ferroelectric materials have been the subject of increasing interest in recent decades, largely because of the development of methods for thin film and nanostructure fabrication, and subsequent integration into a wide range of electronic technologies, such as thermometry and thermal imaging, 1,2 electromechanical transducers, 3 nonvolatile memories, 4 organic electronics, 5 and energy storage, 6 as well as promising applications to organic photovoltaics, 7 solid-state energy harvesting, and refrigeration. 8,9 To further improve the performance and utility of ferroelectric materials, it is essential to be able to measure the spatial distribution of the polarization at high resolution. The current method of choice for polarization imaging is Piezoresponse Force Microscopy (PFM), 10,11 because the piezoresponse is proportional to the net polarization.…”

mentioning

confidence: 99%

Polarization imaging in ferroelectric polymer thin film capacitors by pyroelectric scanning microscopy

Song

Gruverman

et al. 2014

Applied Physics Letters

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mentioning

confidence: 99%

Polarization imaging in ferroelectric polymer thin film capacitors by pyroelectric scanning microscopy

Song

Gruverman

et al. 2014

Applied Physics Letters

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“…Pyroelectric energy harvesting offers a greater effectiveness compared to thermoelectric harvesting. Furthermore, it is much simpler to achieve by utilizing a restricted surface heat exchange and by proposing harvesting with high-temperature sources [24,25].…”

Section: Pyroelectric Energy Conversionmentioning

confidence: 99%

EH-GC: An Efficient and Secure Architecture of Energy Harvesting Green Cloud Infrastructure

et al. 2017

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Nowadays, the high power consumption of data centers is the biggest challenge to making cloud computing greener. Many researchers are still seeking effective solutions to reduce or harvest the energy produced at data centers. To address this challenge, we propose a green cloud infrastructure which provides security and efficiency based on energy harvesting (EH-GC). The EH-GC is basically focused on harvesting the heat energy produced by data centers in the Infrastructure-as-a-Service (IaaS) infrastructure. A pyroelectric material is used to generate the electric current from heat using the Olsen cycle. In order to achieve efficient green cloud computing, the architecture utilizes a genetic algorithm for proper virtual machine allocation, taking into consideration less Service Level Agreement (SLA) violations. The architecture utilizes Multivariate Correlation Analysis (MCA) correlation analysis based on a triangular map area generation to detect Denial of Service (DoS) attacks in the data center layer of the IaaS. Finally, the experimental analysis is explained based on the energy parameter, which proves that our model is efficient and secure, and that it efficiently reuses the energy emitted from the data center.

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“…Thermoelectric generators need a temperature difference, as they cannot work in an environment with spatially uniform and time-dependent temperature fluctuations [1]. Alternatively, pyroelectric devices directly convert temperature fluctuations into electrical energy [1][2][3][4][5][6][7]. Pyroelectric materials have the potential to operate with high thermodynamic efficiency and, compared to thermoelectric generators, do not require bulky heat sinks to maintain the temperature gradient.…”

Section: Introductionmentioning

confidence: 99%

“…) is the pyroelectric coefficient of the pyroelectric materials, as presented by [1,9]: P = dPs/dT (2) where Ps is the magnitude of the electrical polarization vector. Pyroelectric elements, such as flat-plate capacitors, are sandwiched in between the top and bottom electrodes, and poled along the axis perpendicular to the plates.…”

Section: Introductionmentioning

confidence: 99%

Pyroelectric Harvesters for Generating Cyclic Energy

Hsiao

Jhang

2015

Energies

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Pyroelectric energy conversion is a novel energy process which directly transforms waste heat energy from cyclic heating into electricity via the pyroelectric effect. Application of a periodic temperature profile to pyroelectric cells is necessary to achieve temperature variation rates for generating an electrical output. The critical consideration in the periodic temperature profile is the frequency or work cycle which is related to the properties and dimensions of the air layer; radiation power and material properties, as well as the dimensions and structure of the pyroelectric cells. This article aims to optimize pyroelectric harvesters by matching all these requirements. The optimal induced charge per period increases about 157% and the efficient period band decreases about 77%, when the thickness of the PZT cell decreases from 200 μm to 50 μm, about a 75% reduction. Moreover, when using the thinner PZT cell for harvesting the pyroelectric energy it is not easy to focus on a narrow band with the efficient period. However, the optimal output voltage and stored energy per period decrease about 50% and 74%, respectively, because the electrical capacitance of the 50 μm thick pyroelectric cell is about four times greater than that of the 200 μm thick pyroelectric cell. In addition, an experiment is used to verify that the work cycle to be able to critically affect the efficiency of PZT pyroelectric harvesters. Periods in the range between 3.6 s and 12.2 s are useful for harvesting thermal cyclic energy by pyroelectricity. The optimal frequency or work cycle can be applied in the design of a rotating shutter in order to control the heated and unheated periods of the pyroelectric cells to further enhance the amount of stored energy.

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Pyroelectric waste heat energy harvesting using heat conduction

Cited by 99 publications

References 31 publications

Polarization imaging in ferroelectric polymer thin film capacitors by pyroelectric scanning microscopy

Polarization imaging in ferroelectric polymer thin film capacitors by pyroelectric scanning microscopy

EH-GC: An Efficient and Secure Architecture of Energy Harvesting Green Cloud Infrastructure

Pyroelectric Harvesters for Generating Cyclic Energy

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