A Generalized Analytical Model for Joule Heating of Segmented Wires

Balakrishnan, V.R.; Dinh, Toan; Phan, Hoang‐Phuong; Dao, Dzung Viet; Nguyen, Nam‐Trung

doi:10.1115/1.4038829

Cited by 11 publications

(10 citation statements)

References 42 publications

(48 reference statements)

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“…device is not possible, it is still an attractive thermal management unit for many wearable devices due to a simple heating mechanism and a facile application by simply connecting an electrical conductor with the power source. Also, obtaining high temperatures by putting more electrical energy into the heating conductor is not difficult [125][126][127][128][129].…”

Section: Joule-heating-based Thermal Managementmentioning

confidence: 99%

Functional Materials and Innovative Strategies for Wearable Thermal Management Applications

Jung,

Kim,

Kim

et al. 2023

Nano-Micro Lett.

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HIGHLIGHTS• This article systematically reviews the thermal management wearables with a specific emphasis on materials and strategies to regulate the human body temperature.• Thermal management wearables are subdivided into the active and passive thermal managing methods.• The strength and weakness of each thermal regulatory wearables are discussed in details from the view point of practical usage in real-life.

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Section: Joule-heating-based Thermal Managementmentioning

confidence: 99%

Functional Materials and Innovative Strategies for Wearable Thermal Management Applications

Jung,

Kim,

Kim

et al. 2023

Nano-Micro Lett.

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“…When looking at changes in the maximum value of the sample temperature in relation to the applied voltage, the temperature values increased almost logarithmically For the purpose of this review, the evaluation of the influence of the sample temperature on current flow, resistance, conductivity, and thermal resistance is presented. At the core of understanding the heat generation due to the current flow is resistive (also called Joule) heating as the fundamental phenomena observed for inorganic and organic conductors and semiconductors [38][39][40]. The Joule heating power was calculated from the current flux distributions using the following equation:…”

Section: Thermoelectric Properties Of Selected Neat Iminesmentioning

confidence: 99%

Opto-Electronics Review

Bogdanowicz,

Iwan

2021

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The present review is mainly focused on the extended analysis of the results obtained from coupled measurement techniques of a thermal imaging camera and chronoamperometry for imines in undoped and doped states. This coupled technique allows to identify the currentvoltage characteristics of thin films based on imine, as well as to assess layer defects in thermal images. Additional analysis of results provides further information regarding sample parameters, such as resistance, conductivity, thermal resistance, and Joule power heat correlated with increasing temperature. As can be concluded from this review, it is possible not only to study material properties at the supramolecular level, but also to tune macroscopic properties of -conjugated systems. A detailed study of the structurethermoelectrical properties in a series of eight unsymmetrical and symmetrical imines for the field of optoelectronics and photovoltaics has been undertaken. Apart from this molecular engineering, the imines properties were also tuned by supramolecular engineering via protonation with camphorsulfonic acid and by creation of bulk-heterojunction compositions based on poly (4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6diyl-alt-3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophene-4,6-diyl) and/or [6,6]phenyl-C71-butyric acid methyl ester, poly(3,4-ethylenedioxythiophene) towards the analysed donor or acceptor ability of imines in the active layer. The use of coupled measurement techniques of a thermal imaging camera and chronoamperometry allows obtaining comprehensive data on thermoelectric properties and defects indicating possible molecule rearrangement within the layer.

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“…Joule heat in the heater film generated by DC power is dissipated in three ways: conduction, convection and radiation. 72 The radiation heat transfer could be ignored as the maximum operating temperature is 200°C. The main energy loss due to conduction occurs from SiC heating film to Ni electrodes and from the film to glass substrate.…”

Section: Joule Heating Effectmentioning

confidence: 99%

A hot-film air flow sensor for elevated temperatures

Balakrishnan

Dinh

Nguyen

et al. 2019

Review of Scientific Instruments

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We report for a novel packaging and experimental technique to characterize thermal flow sensors at high temperatures. To start with, the paper briefly presents the fabrication of 3C-SiC (silicon carbide) on a glass substrate via anodic bonding, followed by the study of thermoresistive and Joule heating effects in the 3C-SiC nano-thin film heater. A high thermal coefficient of resistance (TCR) of approximately-20,720 ppm/K at ambient temperature and-9,287 ppm/K at 200°C suggest the potential use of silicon carbide for thermal sensing applications in harsh environments. During the Joule heating test, a high temperature epoxy and a brass metal sheet were utilized to establish the electric conduction between the metal electrodes and the SiC heater inside a temperature oven. In addition, the metal wires from the sensor to external circuitry were protected by a fibre glass insulating sheath to avoid short-circuit. The Joule heating test ensured the mechanical and Ohmic contact stabilities at elevated temperatures. Using a hot-wire anemometer as reference flow sensor, calibration test was performed at 25°C, 35°C and 45°C in the oven. Finally, the SiC hot-film sensor was characterized for a range of low air flow velocity, indicating a sensitivity of 5 mm-1 s. The air flow was established by driving a metal propeller connected to a DC motor and controlled by a microcontroller. The materials, metallization and interconnects used in our flow sensor were robust and survived temperatures of around 200°C.

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A Generalized Analytical Model for Joule Heating of Segmented Wires

Cited by 11 publications

References 42 publications

Functional Materials and Innovative Strategies for Wearable Thermal Management Applications

Functional Materials and Innovative Strategies for Wearable Thermal Management Applications

Opto-Electronics Review

A hot-film air flow sensor for elevated temperatures

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