Thermal Imaging of the Thomson Effect

Morrison, Kelly; Dejene, Fasil Kidane

doi:10.1103/physics.13.137

Cited by 4 publications

(2 citation statements)

References 10 publications

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“…Methods based on thermoelectric phenomena (Seebeck, Peltier, Thomson) employ temperature-dependent electric voltage generated in connected wires made of different electrically conducting materials which form a thermocouple (Figure 6) [33,34]. The greater the temperature difference between the hot junction and the cold junction, the higher the voltage value.…”

mentioning

confidence: 99%

Review of Cutting Temperature Measurement Methods

Cichosz,

Karolczak,

Waszczuk

2023

Materials

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During the cutting process, large quantities of emitted heat are concentrated on a small surface area of the interface between the workpiece and the cutting edge. The resultant very high temperature significantly affects the tool life. Knowledge of maximum temperatures to be expected on the cutting edges is important, as it allows the cutting conditions to be adjusted in such a manner that the critical value of thermal resistance is not exceeded for the cutting material. In effect, the maximum effectiveness of the working process is maintained. This article offers a systematic presentation of methods used in cutting temperature measurements. It discusses their advantages and disadvantages, as well as the usefulness of the individual methods in different types of machining processes. It also points to the possibility of methodological errors which significantly reduce measurement accuracy. The above issues are believed to justify a discussion of different cutting temperature measurement methods. The conclusions here presented may be of particular importance to researchers interested in the field, especially in high-efficiency machining, new cutting materials and cutting-edge protective coatings, as well as various methods for cutting fluid applications. They may allow a more informed selection of measurement methods most suitable for particular situations.

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confidence: 99%

Review of Cutting Temperature Measurement Methods

Cichosz,

Karolczak,

Waszczuk

2023

Materials

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“…Figure 1-Seebeck Effect [5] Figure 2 -Thermoelectric Generator Module [6] Thermoelectric Generator A thermoelectric generator, also known as the Seebeck generator [7]- [8] is a device capable of converting heat flux (∆𝑇) into electrical energy using the principles of the Seebeck effect. Figure 2 is an image of a thermoelectric generator module.…”

Section: Seebeck Effectmentioning

confidence: 99%

Heat Energy Harnessing via Seebeck Generators

Katikaneni,

Farah,

Martinez

et al.

ASEE-NE 2022 Proceedings

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Energy is what drives many aspects of everyday life. Humans use the energy from food, cars use energy from fuel and the multiple electronic devices that we use every day all use energy in the form of electricity. To produce this energy, there are numerous natural and artificially induced processes that take place. As in, our body naturally processes the food we consume to provide us with energy, cars rely on artificially aided combustion and in the mix, we also have renewable sources of energy. While all these sources of energy production and consumption are effective and highly useful, they are not entirely efficient. If we were to go running, our body would use energy to help move our muscles in the required manner, but at the same time our body would produce heat, not all of which is useful. Another interpretation to such a situation is a firepit on a cold night. It might provide warmth to those around it, but the energy lost to the pit itself and the environment in general is quite large.Inspired to find a solution that can help harness this excess heat energy, this project attempts to build a Heat Energy Harnessing Seebeck Generator to address the fire pit situation. The uses of such a concept are vast and can be expanded to a wide range of applications. The prototype is built in such a fashion that one can start a fire in the pan attached to the top of our device and if it is relatively colder towards the bottom of the device, as in if it were placed in snow or if elevated in a manner that cold air would pass from underneath, then from the change in temperature it would be able to generate a voltage using the Seebeck effect from the help of 18 thermoelectric generator (TEG) pads sandwiched within the device. The prototype would be able to harness excess heat energy and produce approx. 16 volts at 100 °c, which can then be used for purposes such as charging a phone or powering a moderately sized lightbar. This can be a very practical tool for purposes such as camping and the applications of such a concept are endless. This paper discusses the process of mind storming the approach towards the solution, followed by the design, material choices, construction choices and the construction itself of the prototype. While also presenting the results of testing that the prototype has undergone and further applications of such technology.

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