Towards Microfabrication of a Thermoelectric Heat Engine in a Micro Energy Source

2007 ◽  
Author(s):  
Peter Glockner ◽  
Greg Naterer
Keyword(s):  
Energy Source ◽  
Heat Engine ◽  
Thermoelectric Heat

scholarly journals A Thermoelectric Heat Engine with Ultracold Atoms

Science ◽  
2013 ◽  
Vol 342 (6159) ◽  
pp. 713-715 ◽  
Author(s):  
J.-P. Brantut ◽  
C. Grenier ◽  
J. Meineke ◽  
D. Stadler ◽  
S. Krinner ◽  
...  
Keyword(s):  
Ultracold Atoms ◽  
Heat Engine ◽  
Thermoelectric Heat

Optimal Quantum Interference Thermoelectric Heat Engine with Edge States

2017 ◽  
Vol 118 (25) ◽  
Author(s):  
Peter Samuelsson ◽  
Sara Kheradsoud ◽  
Björn Sothmann
Keyword(s):  
Quantum Interference ◽  
Heat Engine ◽  
Edge States ◽  
Thermoelectric Heat

scholarly journals Superconducting nonlinear thermoelectric heat engine

2020 ◽  
Vol 101 (21) ◽  
Author(s):  
G. Marchegiani ◽  
A. Braggio ◽  
F. Giazotto
Keyword(s):  
Heat Engine ◽  
Thermoelectric Heat

scholarly journals Aspects Regarding the Practical Realization of an Electric Generator with an Adapted Magneto as an Energy Source

2020 ◽  
Vol 26 (3) ◽  
pp. 114-119
Author(s):  
Marian Jerlăianu ◽  
Silviu Mihai Petrişor ◽  
Iulian Bouleanu
Keyword(s):  
Energy Source ◽  
Energy Efficiency ◽  
Simple Structure ◽  
Heat Engine ◽  
Point Of View ◽  
Practical Realization ◽  
Electric Generator ◽  
Rotational Movement ◽  
Generator Type ◽  
Low Mass

AbstractIn this paper, the authors want to highlight aspects related to the development, testing and use of an innovative technological product of the electric generator type with magneto, adapted for the production of heat and electricity. Its organology is based on a metal chassis to which is attached the heat engine and the generator with tensioner. The transmission of the rotational movement from the engine to the generator is done with the help of a V-belt. From a constructive point of view, the innovative aspect of the prototype is the adaptation of a moped-type electricity source, called here magneto, on a mobile generator structure that facilitates its independent and separate operation from the motors on which they are assembled. The heat engine has an installation attached to the section to exhaust the fumes resulting from the combustion of fuel. It accumulates heat that it releases into the outside environment. The tensioner allows the connection between the motor and the generator to be broken, allowing the motor to operate separately without generating electricity. The prototype has several constructive and functional advantages, such as: low mass, simple structure, energy efficiency and low operating noise.

scholarly journals Power, Efficiency and Fluctuations in a Quantum Point Contact as Steady-State Thermoelectric Heat Engine

Entropy ◽  
2019 ◽  
Vol 21 (8) ◽  
pp. 777 ◽  
Author(s):  
Sara Kheradsoud ◽  
Nastaran Dashti ◽  
Maciej Misiorny ◽  
Patrick Potts ◽  
Janine Splettstoesser ◽  
...  
Keyword(s):  
Steady State ◽  
Power Efficiency ◽  
Heat Engine ◽  
Point Contact ◽  
Power Production ◽  
Quantum Point Contact ◽  
Linear Regime ◽  
Trade Off ◽  
Quantum Point ◽  
Thermoelectric Heat

The trade-off between large power output, high efficiency and small fluctuations in the operation of heat engines has recently received interest in the context of thermodynamic uncertainty relations (TURs). Here we provide a concrete illustration of this trade-off by theoretically investigating the operation of a quantum point contact (QPC) with an energy-dependent transmission function as a steady-state thermoelectric heat engine. As a starting point, we review and extend previous analysis of the power production and efficiency. Thereafter the power fluctuations and the bound jointly imposed on the power, efficiency, and fluctuations by the TURs are analyzed as additional performance quantifiers. We allow for arbitrary smoothness of the transmission probability of the QPC, which exhibits a close to step-like dependence in energy, and consider both the linear and the non-linear regime of operation. It is found that for a broad range of parameters, the power production reaches nearly its theoretical maximum value, with efficiencies more than half of the Carnot efficiency and at the same time with rather small fluctuations. Moreover, we show that by demanding a non-zero power production, in the linear regime a stronger TUR can be formulated in terms of the thermoelectric figure of merit. Interestingly, this bound holds also in a wide parameter regime beyond linear response for our QPC device.

Water Vapor and Mechanical Work: A Comparison of Carnot and Steam Cycles

2011 ◽  
Vol 68 (1) ◽  
pp. 91-102 ◽  
Author(s):  
Olivier Pauluis
Keyword(s):  
Energy Source ◽  
Water Vapor ◽  
Relative Humidity ◽  
Latent Heat ◽  
Energy Transport ◽  
Heat Engine ◽  
Bowen Ratio ◽  
Carnot Cycle ◽  
The Impact ◽  
Steam Cycle

Abstract The impact of water vapor on the production of kinetic energy in the atmosphere is discussed here by comparing two idealized heat engines: the Carnot cycle and the steam cycle. A steam cycle transports water from a warm moist source to a colder dryer sink. It acts as a heat engine in which the energy source is the latent heat of evaporation. It is shown here that the amount of work produced by a steam cycle depends on relative humidity and is always less than that produced by the corresponding Carnot cycle. The Carnot and steam cycles can be combined into a mixed cycle that is forced by both sensible and latent heating at the warm source. The work performed depends on four parameters: the total energy transport; the temperature difference between the energy source and sink; the Bowen ratio, which measures the partitioning between the sensible and latent heat transports; and the relative humidity of the atmosphere. The role of relative humidity on the work produced by a steam cycle is discussed in terms of the Gibbs free energy and in terms of the internal entropy production.

scholarly journals Near-field three-terminal thermoelectric heat engine

2018 ◽  
Vol 97 (12) ◽  
Author(s):  
Jian-Hua Jiang ◽  
Yoseph Imry
Keyword(s):  
Near Field ◽  
Heat Engine ◽  
Thermoelectric Heat

Performance analysis of a tunneling thermoelectric heat engine with nano-scaled quantum well

2014 ◽  
Vol 117 (3) ◽  
pp. 1031-1039 ◽  
Author(s):  
Xiaoguang Luo ◽  
Nian Liu ◽  
Jizhou He ◽  
Teng Qiu
Keyword(s):  
Performance Analysis ◽  
Quantum Well ◽  
Heat Engine ◽  
Thermoelectric Heat
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