scholarly journals Review of Thermoelectric Generators at Low Operating Temperatures: Working Principles and Materials

Micromachines ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 734
Author(s):  
Nurkhaizan Zulkepli ◽  
Jumril Yunas ◽  
Mohd Ambri Mohamed ◽  
Azrul Azlan Hamzah
Keyword(s):  
Power Generation ◽  
Physical Properties ◽  
Electrical Energy ◽  
Thermoelectric Generators ◽  
System A ◽  
Depth Analysis ◽  
Power Generation Technology ◽  
Operating Temperatures ◽  
Compound Materials ◽  
Sustainable Power

Thermoelectric generators (TEGs) are a form of energy harvester and eco-friendly power generation system that directly transform thermal energy into electrical energy. The thermoelectric (TE) method of energy harvesting takes advantage of the Seebeck effect, which offers a simple solution for fulfilling the power-supply demand in almost every electronics system. A high-temperature condition is commonly essential in the working mechanism of the TE device, which unfortunately limits the potential implementation of the device. This paper presents an in-depth analysis of TEGs at low operating temperature. The review starts with an extensive description of their fundamental working principles, structure, physical properties, and the figure of merit (ZT). An overview of the associated key challenges in optimising ZT value according to the physical properties is discussed, including the state of the art of the advanced approaches in ZT optimisation. Finally, this manuscript summarises the research status of Bi2Te3-based semiconductors and other compound materials as potential materials for TE generators working at low operating temperatures. The improved TE materials suggest that TE power-generation technology is essential for sustainable power generation at near-room temperature to satisfy the requirement for reliable energy supplies in low-power electrical/electronics systems.

scholarly journals Review of Development Status of Bi2Te3-Based Semiconductor Thermoelectric Power Generation

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Yan Chen ◽  
Xiangnan Hou ◽  
Chunyan Ma ◽  
Yinke Dou ◽  
Wentao Wu
Keyword(s):  
Power Generation ◽  
Thermoelectric Power ◽  
Thermoelectric Materials ◽  
Electrical Energy ◽  
Basic Principles ◽  
Environment Friendly ◽  
Thermoelectric Power Generation ◽  
Research Status ◽  
Power Generation Technology ◽  
New Type

Semiconductor thermoelectric power generation is a new type of energy-saving and environment-friendly power generation technology, which directly converts heat energy into electrical energy by using the characteristics of semiconductor thermoelectric materials and has broad application prospects. This paper introduces the basic principles of thermoelectric materials and semiconductor thermoelectric power generation. The research status and progress of Bi2Te3-based semiconductor materials and thermoelectric generators in recent years are also introduced, respectively. Then, the paper emphasizes the research status of low temperature difference semiconductor power generation and points out the future development directions.

scholarly journals Power Generation on Highway by Harnessing Wind Power

2019 ◽  
Vol 8 (12S) ◽  
pp. 330-331
Keyword(s):  
Power Generation ◽  
Wind Power ◽  
Electrical Energy ◽  
Energy Sources ◽  
Generation System ◽  
System A ◽  
Ac Power ◽  
Moving Vehicles ◽  
Power Generation System ◽  
Electrical Loads

This paper is focused on the wind power generated by harnessing the wind power generated by moving vehicles on the roadway. The wind power and solar power is the future of power generation system. The wind power have the least carbon footprint as compare to other form of energy sources. In this paper a system for harnessing roadside wind power is discussed in this system a special type of wind turbine is used for harnessing wind generated by moving vehicles and converted into electrical energy by a generator. The electrical energy is stored in the batteries installed in system and further used when require by converting DC into AC by an inverter. The AC power is used for supplying power to houses, street light and many other electrical loads.

ALUCHROM O, ALUCHROM I, ALUCHROM S, ALUCHROM W

Alloy Digest ◽  
1992 ◽  
Vol 41 (9) ◽  
Keyword(s):  
Physical Properties ◽  
Tensile Properties ◽  
High Resistance ◽  
Resistance To Oxidation ◽  
Operating Temperatures

Abstract Aluchrom O, Aluchrom I, Aluchrom S and Aluchrom W are ferritic stainless alloys of high resistance to oxidation at high operating temperatures with a range of resistivity values. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. Filing Code: SS-534. Producer or source: VDM Technologies Corporation.

Optimization approach for planning hybrid electrical energy system: a Brazilian case

2021 ◽  
Author(s):  
D. T. Kitamura ◽  
K. P. Rocha ◽  
L. W. Oliveira ◽  
J. G. Oliveira ◽  
B. H. Dias ◽  
...  
Keyword(s):  
Electrical Energy ◽  
Energy System ◽  
Optimization Approach ◽  
System A ◽  
Brazilian Case

scholarly journals Cu2Se-based thermoelectric cellular architectures for efficient and durable power generation

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Seungjun Choo ◽  
Faizan Ejaz ◽  
Hyejin Ju ◽  
Fredrick Kim ◽  
Jungsoo Lee ◽  
...  
Keyword(s):  
Power Generation ◽  
3D Printing ◽  
Power Output ◽  
Waste Heat ◽  
Computational Simulation ◽  
Mechanical Stiffness ◽  
Higher Power ◽  
Printing Inks ◽  
Binder Free ◽  
Sustainable Power

AbstractThermoelectric power generation offers a promising way to recover waste heat. The geometrical design of thermoelectric legs in modules is important to ensure sustainable power generation but cannot be easily achieved by traditional fabrication processes. Herein, we propose the design of cellular thermoelectric architectures for efficient and durable power generation, realized by the extrusion-based 3D printing process of Cu2Se thermoelectric materials. We design the optimum aspect ratio of a cuboid thermoelectric leg to maximize the power output and extend this design to the mechanically stiff cellular architectures of hollow hexagonal column- and honeycomb-based thermoelectric legs. Moreover, we develop organic binder-free Cu2Se-based 3D-printing inks with desirable viscoelasticity, tailored with an additive of inorganic Se82− polyanion, fabricating the designed topologies. The computational simulation and experimental measurement demonstrate the superior power output and mechanical stiffness of the proposed cellular thermoelectric architectures to other designs, unveiling the importance of topological designs of thermoelectric legs toward higher power and longer durability.

scholarly journals A Boom Energy Regeneration System of Hybrid Hydraulic Excavator Using Energy Conversion Components

Actuators ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 1
Author(s):  
Tri Cuong Do ◽  
Duc Giap Nguyen ◽  
Tri Dung Dang ◽  
Kyoung Kwan Ahn
Keyword(s):  
Management Strategy ◽  
Electrical Energy ◽  
Maximum Energy ◽  
Regeneration System ◽  
Hydraulic Pump ◽  
Energy Management Strategy ◽  
Energy Regeneration ◽  
System A ◽  
Time Optimal ◽  
Novel Design

In this paper, a novel design of an energy regeneration system was proposed for recovering as well as reusing potential energy in a boom cylinder. The proposed system included a hydraulic pump/motor and an electrical motor/generator. When the boom moved down, the energy regeneration components converted the hydraulic energy to electrical energy and stored in a battery. Then, the regenerated energy was reused at subsequent cycles. In addition, an energy management strategy has been designed based on discrete time-optimal control to guarantee position tracking performance and ensure component safety during the operation. To verify the effectiveness of the proposed system, a co-simulation (using MATLAB and AMESim) was carried out. Through the simulation results, the maximum energy regeneration efficiency could achieve up to 44%. Besides, the velocity and position of the boom cylinder achieved good performance with the proposed control strategy.

Sign in / Sign up

Export Citation Format

Share Document