Enhanced power factor of n-type Bi2Te2.8Se0.2 alloys through an efficient one-step sintering strategy for low-grade heat harvesting

2020 ◽  
Vol 8 (46) ◽  
pp. 24524-24535
Author(s):  
Haoxiang Wei ◽  
Jiaqi Tang ◽  
Hongchao Wang ◽  
Dongyan Xu
Keyword(s):  
Energy Harvesting ◽  
Thermal Energy ◽  
Power Factor ◽  
Low Grade ◽  
Thermal Energy Harvesting ◽  
One Step ◽  
Low Grade Heat

This work reports the enhanced power factor of n-type Bi2Te2.8Se0.2 alloys through an efficient one-step sintering strategy for thermal energy harvesting.

Flexible and non-volatile redox active quasi-solid state ionic liquid based electrolytes for thermal energy harvesting

2018 ◽  
Vol 2 (8) ◽  
pp. 1806-1812 ◽  
Author(s):  
Abuzar Taheri ◽  
Douglas R. MacFarlane ◽  
Cristina Pozo-Gonzalo ◽  
Jennifer M. Pringle
Keyword(s):  
Ionic Liquid ◽  
Solid State ◽  
Energy Harvesting ◽  
Thermal Energy ◽  
Solid State Ionic ◽  
Waste Heat ◽  
Low Grade ◽  
Redox Active ◽  
Thermal Energy Harvesting ◽  
State Ionic

Towards the development of stable thermocells for harvesting low-grade waste heat, non-volatile and flexible electrolyte films are reported.

scholarly journals Quasi‐solid‐State Electrolytes for Low‐Grade Thermal Energy Harvesting using a Cobalt Redox Couple

ChemSusChem ◽  
2018 ◽  
Vol 11 (16) ◽  
pp. 2788-2796 ◽  
Author(s):  
Abuzar Taheri ◽  
Douglas R. MacFarlane ◽  
Cristina Pozo‐Gonzalo ◽  
Jennifer M. Pringle
Keyword(s):  
Solid State ◽  
Energy Harvesting ◽  
Thermal Energy ◽  
Redox Couple ◽  
Low Grade ◽  
Thermal Energy Harvesting ◽  
Solid State Electrolytes

scholarly journals A Review on Low-Grade Thermal Energy Harvesting: Materials, Methods and Devices

Materials ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 1433 ◽  
Author(s):  
Ravi Kishore ◽  
Shashank Priya
Keyword(s):  
Energy Harvesting ◽  
Thermal Energy ◽  
Energy Resource ◽  
Cost Effective ◽  
Low Grade ◽  
Advantages And Disadvantages ◽  
Thermal Energy Harvesting ◽  
Basic Physics ◽  
Working Principle ◽  
The Individual

Combined rejected and naturally available heat constitute an enormous energy resource that remains mostly untapped. Thermal energy harvesting can provide a cost-effective and reliable way to convert available heat into mechanical motion or electricity. This extensive review analyzes the literature covering broad topical areas under solid-state low temperature thermal energy harvesting. These topics include thermoelectricity, pyroelectricity, thermomagneticity, and thermoelasticity. For each topical area, a detailed discussion is provided comprising of basic physics, working principle, performance characteristics, state-of-the-art materials, and current generation devices. Technical advancements reported in the literature are utilized to analyze the performance, identify the challenges, and provide guidance for material and mechanism selection. The review provides a detailed analysis of advantages and disadvantages of each energy harvesting mechanism, which will provide guidance towards designing a hybrid thermal energy harvester that can overcome various limitations of the individual mechanism.

Low-grade waste heat recovery using the reverse magnetocaloric effect

2017 ◽  
Vol 1 (9) ◽  
pp. 1899-1908 ◽  
Author(s):  
Ravi Anant Kishore ◽  
Shashank Priya
Keyword(s):  
Energy Harvesting ◽  
Magnetocaloric Effect ◽  
Thermal Energy ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Low Grade ◽  
Thermal Energy Harvesting ◽  
Magnetocaloric Materials

This study demonstrates a novel thermal energy harvesting cycle and provides pathway for low-grade waste heat recovery using magnetocaloric materials.

scholarly journals Giant energy harvesting potential in (100)-oriented 0.68PbMg1/3Nb2/3O3–0.32PbTiO3 with Pb(Zr0.3Ti0.7)O3/PbOx buffer layer and (001)-oriented 0.67PbMg1/3Nb2/3O3–0.33PbTiO3 thin films

2014 ◽  
Vol 04 (04) ◽  
pp. 1450029 ◽  
Author(s):  
Gaurav Vats ◽  
Himmat Singh Kushwaha ◽  
Rahul Vaish ◽  
Niyaz Ahamad Madhar ◽  
Mohammed Shahabuddin ◽  
...  
Keyword(s):  
Thin Films ◽  
Energy Harvesting ◽  
Buffer Layer ◽  
Thermal Energy ◽  
Low Grade ◽  
Ambient Conditions ◽  
Thermal Energy Harvesting ◽  
Energy Harnessing ◽  
Olsen Cycle

This work emphasis on the competence of (100)-oriented PMN–PT buffer layered (0.68 PbMg 1/3 Nb 2/3 O 3–0.32 PbTiO 3 with Pb ( Zr 0.3 Ti 0.7) O 3/ PbO x buffer layer) and (001)-oriented PMN–PT (0.67 PbMg 1/3 Nb 2/3 O 3–0.33 PbTiO 3) for low grade thermal energy harvesting using Olsen cycle. Our analysis (based on well-reported experiments in literature) reveals that these films show colossal energy harnessing possibility. Both the films are found to have maximum harnessable energy densities (PMN–PT buffer layered: 8 MJ/m3; PMN–PT: 6.5 MJ/m3) in identical ambient conditions of 30–150°C and 0–600 kV/cm. This energy harnessing plausibility is found to be nearly five times higher than the previously reported values to date.

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.

Thermally Resistive Electrospun Composite Membranes for Low-Grade Thermal Energy Harvesting

2018 ◽  
Vol 303 (3) ◽  
pp. 1700482
Author(s):  
Syed Waqar Hasan ◽  
Suhana Mohd. Said ◽  
Mohd. Faizul Mohd Sabri ◽  
Hasan Abbass Jaffery ◽  
Ahmad Shuhaimi Bin Abu Bakar
Keyword(s):  
Energy Harvesting ◽  
Thermal Energy ◽  
Composite Membranes ◽  
Low Grade ◽  
Thermal Energy Harvesting

scholarly journals Linear thermomagnetic energy harvester for low-grade thermal energy harvesting

2020 ◽  
Vol 127 (4) ◽  
pp. 044501 ◽  
Author(s):  
Ravi Anant Kishore ◽  
Deepa Singh ◽  
Rammohan Sriramdas ◽  
Anthony Jon Garcia ◽  
Mohan Sanghadasa ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Thermal Energy ◽  
Energy Harvester ◽  
Low Grade ◽  
Thermal Energy Harvesting
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