Size-Sensitive Thermoelectric Properties of Electrolyte-Based Nanofluidic Systems

Jin, Yakang; Tao, Ran; Luo, Shuang; Li, Zhigang

doi:10.1021/acs.jpclett.0c03558

Cited by 11 publications

(2 citation statements)

References 44 publications

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“…To effectively monitor the insulation state of the photoelectric composite submarine cable, this paper takes the common AC submarine cable in the power system as an example and divides the relative dielectric constant under its insulation state, by using the relative dielectric constant under different values to judge the insulation state of the submarine cable, the specific division results are shown in Table 3.1 [5].…”

Section: Optical Composite Submarine Cable Insulation Eigen Function ...mentioning

confidence: 99%

Real-time Monitoring Method of Insulation Status of Photoelectric Composite Submarine Cable based on Thermoelectric Coupling

Lao,

Zhang,

Gao

et al. 2023

SCPE

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The existing approach for monitoring the insulation state of photoelectric composite submarine cables primarily relies on detecting the current of the cable protection layer. However, this conventional method suffers from limited monitoring accuracy due to the absence of parameter identification processing for the cable. As a result, there is a need to improve the monitoring methodology by incorporating robust parameter identification techniques to enhance the accuracy of insulation state evaluation. In this regard, a real-time monitoring method based on thermoelectric coupling is proposed to monitor the insulation status of the photoelectric composite submarine cable. By constructing an equivalent composite circuit model and a thermodynamic function, a thermoelectric coupling model is constructed and used to identify the parameters of the submarine cable; by extracting the frequency extremes in the spectral values of the submarine cable current signal, an equivalent insulation characteristic function is constructed to realize the determination of the insulation state. The proposed method is verified for the insulation state monitoring effect in the experiment. The experimental results show that when the proposed method is used to monitor the insulation state of the photoelectric composite submarine cable, the calculated partial discharge quantity has a small error, and the monitoring accuracy is high.

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Section: Optical Composite Submarine Cable Insulation Eigen Function ...mentioning

confidence: 99%

Real-time Monitoring Method of Insulation Status of Photoelectric Composite Submarine Cable based on Thermoelectric Coupling

Lao,

Zhang,

Gao

et al. 2023

SCPE

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“…This study improves the fundamental understanding of the thermoelectricity of electrolytes in nanochannels and provides theoretical guidance for related energy-harvesting and temperature-sensing application. In the future, (nonequilibrium) molecular dynamics simulation ,− (Section S7, Supporting Information) can be carried out to provide more insight into the microscopic picture of ionic thermoelectricity in nanochannels.…”

mentioning

confidence: 99%

Ion Steric Effect Induces Giant Enhancement of Thermoelectric Conversion in Electrolyte-Filled Nanochannels

Zhang,

Liu,

Jiao

et al. 2023

Nano Lett.

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Ionic thermoelectricity in nanochannels has received increasing attention because of its advantages, such as high Seebeck coefficient and low cost. However, most studies have focused on dilute simple electrolytes that neglect the effects of finite ion sizes and short-range electrostatic correlation. Here, we reveal a new thermoelectric mechanism arising from the coupling of the ion steric effect due to finite ion sizes and ion thermodiffusion in electric double layers, using both theoretical and numerical methods. We show that this mechanism can significantly enhance the thermoelectric response in nanoconfined electrolytes depending on the properties of electrolytes and nanochannels. Compared to the previously known mechanisms, the new mechanism can increase the Seebeck coefficient by 100% or even 1 order of magnitude enhancement under optimal conditions. Moreover, we demonstrate that the short-range electrostatic correlation can help preserve the Seebeck coefficient enhancement in a weaker confinement or in more concentrated electrolytes.

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Peltier cooling for thermal management in nanofluidic devices

Tsutsui,

Yokota,

Hsu

et al. 2024

Device

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Size-Sensitive Thermoelectric Properties of Electrolyte-Based Nanofluidic Systems

Cited by 11 publications

References 44 publications

Real-time Monitoring Method of Insulation Status of Photoelectric Composite Submarine Cable based on Thermoelectric Coupling

Real-time Monitoring Method of Insulation Status of Photoelectric Composite Submarine Cable based on Thermoelectric Coupling

Ion Steric Effect Induces Giant Enhancement of Thermoelectric Conversion in Electrolyte-Filled Nanochannels

Peltier cooling for thermal management in nanofluidic devices

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