Optimization of thermal energy harvesting by PZT using shape memory alloy

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Mohammed Lamine Mekhalfia
Keyword(s):  
Energy Harvesting ◽  
Shape Memory ◽  
Thermal Energy ◽  
Energy Efficient ◽  
Electrical Energy ◽  
Storage Devices ◽  
Production And Consumption ◽  
Thermal Energy Harvesting ◽  
Feeding Process ◽  
Electronic Technologies

Abstract Thermal Energy harvesting intends to supply portable or wireline electrical appliances connected to a generator with the necessary power on the purpose of making them energy-independent. The implemented power values in this case are small; they range from Microwatt to Watt. This self-feeding process is an attempt to cope with the widespread energy-efficient electronic technologies of nowadays. Additionally, this study aims at recovering renewable micro-energy by means of the piezoelectric material and optimizing its efficiency by using Shape Memory Alloys (SMAs). This study sheds light upon the progress made on storage devices that are necessary to compensate for the intermittencies and the inadequacies that occur in the production and consumption of the generated electrical energy.

scholarly journals Numerical Analysis of an Active Thermomagnetic Device for Thermal Energy Harvesting

2020 ◽  
Vol 142 (8) ◽  
Author(s):  
Makita R. Phillips ◽  
Gregory P. Carman
Keyword(s):  
Energy Harvesting ◽  
Thermal Energy ◽  
Applied Field ◽  
Waste Heat ◽  
Thermal Conductance ◽  
Electrical Energy ◽  
Low Grade ◽  
Thermal Energy Harvesting ◽  
Magnetic States ◽  
Energy Harvesting Devices

Abstract The abundance of low-grade waste heat necessitates energy harvesting devices to convert thermal energy to electrical energy. Through magnetic transduction, thermomagnetics can perform this conversion at reasonable efficiencies. Thermomagnetic materials use thermal energy to switch between magnetic and non-magnetic states and convert thermal energy into electrical energy. In this study, we numerically analyzed an active thermomagnetic device for thermal energy harvesting composed of gadolinium (Gd) and neodymium iron boron (NdFeB). A parametric study to determine the device efficiency was conducted by varying the gap distance, heat source temperature, and Gd thickness. Furthermore, the effect of the thermal conductance and applied field was also evaluated. It was found that the relative efficiency for smaller gap distances ranges from ∼15% to 28%; the largest allowable volume of Gd should be used and higher applied field leads to higher efficiencies.

High Frequency Thermal Energy Harvesting Using Magnetic Shape Memory Films

2014 ◽  
Vol 4 (17) ◽  
pp. 1400751 ◽  
Author(s):  
Marcel Gueltig ◽  
Hinnerk Ossmer ◽  
Makoto Ohtsuka ◽  
Hiroyuki Miki ◽  
Koki Tsuchiya ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Shape Memory ◽  
Thermal Energy ◽  
High Frequency ◽  
Magnetic Shape Memory ◽  
Shape Memory Films ◽  
Thermal Energy Harvesting

scholarly journals Combined Pyroelectric, Piezoelectric and Shape Memory Effects for Thermal Energy Harvesting

2013 ◽  
Vol 476 ◽  
pp. 012021 ◽  
Author(s):  
D Zakharov ◽  
B Gusarov ◽  
E Gusarova ◽  
B Viala ◽  
O Cugat ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Shape Memory ◽  
Thermal Energy ◽  
Memory Effects ◽  
Thermal Energy Harvesting ◽  
Shape Memory Effects

Analysis and Optimization of Sb2Te3 and Bi2Te3 Materials for Enhancing the Performance of Thermoelectric Energy Harvester for W SN Applications

2020 ◽  
Vol 14 (2) ◽  
pp. 161-170
Author(s):  
Gourav Verma ◽  
Vidushi Sharma
Keyword(s):  
Energy Storage ◽  
Energy Harvesting ◽  
Phase Change ◽  
Phase Change Material ◽  
Thermal Energy ◽  
Thermoelectric Generator ◽  
Electrical Energy ◽  
Research Community ◽  
Thermal Energy Harvesting ◽  
Change Material

Background: Thermoelectric (TE) materials are used to fabricate the thermoelectric generator (TEG). Thermoelectric Generator (TEG) is used to convert thermal energy into electrical energy and vice-versa. Bismuth-Telluride and Antimony Telluride (Bi/Sb)2Te3 alloys are popular in the research community due to its capability of electrical energy generation in the range of room temperature. The Phase Change Material (PCM) is a good source of thermal energy storage in thermal energy harvesting. We have reviewed patents having the information of thermal energy storage and tried to provide a better cost-effective solution in thermal energy harvesting using Phase Change Material (PCM) and material used in thermoelectric generator. Finding the most appropriate TE alloy for a particular application is a challenge in the research community. Objective: The objective of this paper is to conduct a study and analysis of performance parameter of (Bi/Sb)-Te based TE alloy along with the effect of Phase Change Material (PCM) on energy generation. Methods: An investigation over a wide range of temperature is performed. A Bi2Te3 based Commercial- of-the-shelf (COTS) Thermoelectric Generator (TEG) has been experimentally tested in a controlled temperature environment for the analysis of its efficiency. Results: This is found that maximum efficiency of 2.12% is achieved at a temperature difference of 60°C. Conclusion: This investigation will be useful for the selection of material for thermal energy harvesting techniques and helps to provide an optimized framework for the research community to decide the (Bi1-xSbx)2Te3 mixed crystal alloy for their applications.

Thermal energy harvesting by piezoelectric PVDF polymer coupled with shape memory alloy

2016 ◽  
Vol 243 ◽  
pp. 175-181 ◽  
Author(s):  
B. Gusarov ◽  
E. Gusarova ◽  
B. Viala ◽  
L. Gimeno ◽  
S. Boisseau ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Thermal Energy ◽  
Thermal Energy Harvesting
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