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IoT-Based Peltier Air Conditioner
Published in Indu Bala, Kiran Ahuja, Harnessing the Internet of Things (IoT) for a Hyper-Connected Smart World, 2023
Vankadara Sampath Kumar, B. Praveen Kumar, Ch. Santhan Kumar
With the help of thermocouple, direct conversion of temperature differences to electric voltage and vice versa is known as the thermoelectric effect. When there is a different temperature on both sides the thermoelectric device creates a voltage. Conversely, heat is transferred from one side to the opposite, when a voltage is applied to that which creates a temperature difference. An applied voltage gradient causes a charge carrier within the material to diffuse to the cold side from the new side at the atomic scale.
Energy Conservation and Efficiency
Published in Robert Ehrlich, Harold A. Geller, John R. Cressman, Renewable Energy, 2023
Robert Ehrlich, Harold A. Geller, John R. Cressman
The usual way of generating electricity from heat involves using the heat to create high-pressure steam to drive a turbine connected to an electric generator. In contrast, the thermoelectric effect involves the direct conversion of heat into electricity (the Seebeck effect), as well as the converse process of using electricity to create temperature differences (the Peltier effect), in which a temperature difference across two materials creates a voltage across them (Figure 12.6).
An Effective Study on Particulate Matter (PM) Removal Using Graphene Filter
Published in Ashish Raman, Deep Shekhar, Naveen Kumar, Sub-Micron Semiconductor Devices, 2022
Katyayani Bhardwaj, Aryan, R.K. Yadav
Due to the scarcity of energy and environmental issues, a variety of cost-effective and pollution-free technologies have attracted a great deal of attention. Thermoelectricity is one of the new ways by which the problem of waste of pure heat energy can be solved. The thermoelectric effect is the direct conversion of temperature differences to electric voltage and vice versa via a thermocouple. Thermoelectric devices create a voltage when there is a different temperature on each side. Conversely, when a voltage is applied to it, heat is transferred from one side to the other, creating a temperature difference. At the atomic scale, an applied temperature gradient causes the charge carrier in the material to diffuse from the hot side to the cold side. In this phenomenon, both electric and thermal currents contribute to the total current. The thermoelectric effect described is introduced in a natural way by several characteristic coefficients of the material, namely the thermal conductivity κ, the electrical conductivity σ, and the Seebeck coefficient S. These coefficients relate thermal and electrical currents with thermal and electrical gradients, generally referred to as transport coefficients.
Structural, electronic, magnetic and thermoelectric properties of inverse Heusler alloys Ti2CoSi, Mn2CoAl and Cr2ZnSi by employing Ab initio calculations
Published in Philosophical Magazine, 2020
D. J. Mokhtari, Inshad Jum’h, H. Baaziz, Z. Charifi, T. Ghellab, Ahmad Telfah, Roland Hergenröder
The thermoelectric effect refers to phenomena by which either a temperature difference creates an electric potential or an electric potential creates a temperature difference. These phenomena are known more specifically as the Seebeck effect (creating a voltage from temperature difference), Peltier effect (driving heat flow with an electric current), and Thomson effect (reversible heating or cooling within a conductor when there is both an electric current and a temperature gradient). While all materials have a nonzero thermoelectric effect, in most materials it is too small to be useful. However, low-cost materials that have a sufficiently strong thermoelectric effect (and other required properties) are also considered for applications including power generation and refrigeration. Thermoelectric materials are used in thermoelectric systems for cooling or heating in niche applications and are being studied as a way to regenerate electricity from waste heat [6].