Characterization of thermoelectric cell for electric power generation

Almeida, Carlos Henrique Alencar; Souto, Cícero da Rocha; Veronese, Jean Pierre

doi:10.1109/i2mtc.2015.7151471

Cited by 5 publications

(4 citation statements)

References 7 publications

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“…For example, in [24,25] the TEM is placed between a heat source given by a controlled hot-plate and a controlled cooling fan, whereas in [26] a shielded heating block and a cold-plate are used to assess the TEM efficiency, monitoring the heat flux, the delivered power and also the mechanical load to make a good thermal contact between each component. Another interesting setup is proposed in [27], where both the heat produced by an electrical resistance and the cooling capacity provided by a TEM, are controlled by a proportional-integral controller. Other propose the use of one or two opportunely driven auxiliary TEMs to set the temperature gradient on the TEM under test [2,28,33].…”

Section: State Of the Art And Proposed Methodsmentioning

confidence: 99%

“…The focus is on using an appropriate procedure and suitable hardware to investigate the underlying relationship between both the operating temperature, the temperature difference and the parameters of the electrical and thermal equivalent model for commercial modules. The novelty consists in applying a proper current stimulus (for which two alternatives are discussed) to the TEM under test and simultaneously acquire both thermal and electrical data to automatically derive all parameters in a single test, without using either a discrete load [9,23,24] nor hot plates or auxiliary TEMs [2,11,17,24,25,26,27,28,29]. Unlike other approaches, the developed testbed permit, using a very simple configuration, to quickly obtain all relevant parameters, making possible an extensive TEM characterization over a wide range of temperature differences, ambient temperatures and electric loads.…”

Section: Introductionmentioning

confidence: 99%

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An Extensive Unified Thermo-Electric Module Characterization Method

Attivissimo

Carducci

Lanzolla

et al. 2016

Sensors

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Thermo-Electric Modules (TEMs) are being increasingly used in power generation as a valid alternative to batteries, providing autonomy to sensor nodes or entire Wireless Sensor Networks, especially for energy harvesting applications. Often, manufacturers provide some essential parameters under determined conditions, like for example, maximum temperature difference between the surfaces of the TEM or for maximum heat absorption, but in many cases, a TEM-based system is operated under the best conditions only for a fraction of the time, thus, when dynamic working conditions occur, the performance estimation of TEMs is crucial to determine their actual efficiency. The focus of this work is on using a novel procedure to estimate the parameters of both the electrical and thermal equivalent model and investigate their relationship with the operating temperature and the temperature gradient. The novelty of the method consists in the use of a simple test configuration to stimulate the modules and simultaneously acquire electrical and thermal data to obtain all parameters in a single test. Two different current profiles are proposed as possible stimuli, which use depends on the available test instrumentation, and relative performance are compared both quantitatively and qualitatively, in terms of standard deviation and estimation uncertainty. Obtained results, besides agreeing with both technical literature and a further estimation method based on module specifications, also provides the designer a detailed description of the module behavior, useful to simulate its performance in different scenarios.

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Section: State Of the Art And Proposed Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An Extensive Unified Thermo-Electric Module Characterization Method

Attivissimo

Carducci

Lanzolla

et al. 2016

Sensors

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show abstract

“…They can be driven simply by connecting a DC current, and cooling, heating, and temperature control can be performed by controlling the current. Advantages include good temperature response and low noise, and they are also used for power generation utilizing temperature differences (19) (20) . They consist of n-type and p-type semiconductors alternately junctioned with metal, and when an electric current flows through it, the Peltier effect, a type of thermoelectric effect, occurs.…”

Section: Peltier Devicementioning

confidence: 99%

Thermoelectric Cooling Application to Motors for High-Power Operation

Morikawa

Katsura

2023

IEEJ Journal IA

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Joint motors of legged robots and manipulators need to withstand temporary high loads during walking, posture maintenance, and contact with external objects. To only increase the torque, the gear ratio can be increased; however, this decelerates the movement. To increase the power of the motor, improving the torque-current characteristics or applying a high current is necessary. When a high current is applied, a large amount of heat is generated by the motor, which can cause motor failure. In this study, we used thermoelectric cooling as a new cooling method for robot joint motors and verified its effectiveness.We developed a thermoelectric cooling module that can significantly cool a motor before it experiences a high current. Experiments were conducted in which a motor was subjected to a high-load motion, and the results with and without the thermoelectric cooling module were compared. It was shown that the developed thermoelectric cooling system improved the performance of the motor.

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“…It can perform cooling, heating and temperature control by controlling the electric current; moreover, it has the advantages of good temperature response and low noise. It is also used for thermoelectric power generation that generates electrical energy from temperature differences (Alencar Almeida et al, 2015;Belovski et al, 2021).…”

Section: Peltier Devicementioning

confidence: 99%

Investigation into Increasing the Motor-Drivable Current Using a Thermoelectric Cooling Module

Morikawa

Katsura

2022

Power Electronics and Drives

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To enhance the performance of humanoids, mobile robots and manipulators, motors are desired to be able to provide high torque without relying on gears. To be able to drive joint motors with high output, the current value that can flow needs to be increased. However, the heat generated by the high current drive can cause motor failure, so cooling is necessary. We used thermoelectric cooling as a new cooling method for high-power drive of motors. By developing a thermoelectric cooling module for motors and conducting experiments, the effectiveness of thermoelectric cooling was verified. In the experiment, the motor was kept running at a high current for a long period of time. The comparison with the motor alone or with water cooling showed that the thermoelectric cooling module can significantly reduce the rise in temperature of the motor. Furthermore, based on the results of the voltage value measurements, it was expected that the increase in coil resistance due to higher coil temperatures would be kept lower than in other cases. The effect on rise in internal temperature was also considered to be greater than that of water cooling. These experimental results show that the thermoelectric cooling module can be used to increase the upper limit of the current at which the motor is continuously driven.

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Characterization of thermoelectric cell for electric power generation

Cited by 5 publications

References 7 publications

An Extensive Unified Thermo-Electric Module Characterization Method

An Extensive Unified Thermo-Electric Module Characterization Method

Thermoelectric Cooling Application to Motors for High-Power Operation

Investigation into Increasing the Motor-Drivable Current Using a Thermoelectric Cooling Module

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