scholarly journals Ionic thermoelectric materials for waste heat harvesting

2020 ◽  
Author(s):  
Boxuan Yang ◽  
Giuseppe Portale
Keyword(s):  
Ionic Liquid ◽  
Thermoelectric Materials ◽  
Waste Heat ◽  
Conductive Polymer ◽  
Performance Comparison ◽  
Low Grade ◽  
Working Mechanism ◽  
New Class ◽  
Potential Applications ◽  
Waste Heat Harvesting

AbstractIonic thermoelectric polymers are a new class of materials with great potential for use in low-grade waste heat harvesting and the field has seen much progress during the recent years. In this work, we briefly review the working mechanism of such materials, the main advances in the field and the main criteria for performance comparison. We examine two types of polymer-based ionic thermoelectric materials: ionic conductive polymer and ionogels. Moreover, as a comparison, we also examine the more conventional ionic liquid electrolytes. Their performance, possible directions of improvements and potential applications have been evaluated.

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.

Ionic liquid based absorption chillers for usage of low grade waste heat in industry

2013 ◽  
Vol 37 (11) ◽  
pp. 1382-1388 ◽  
Author(s):  
Markus Preißinger ◽  
Simon Pöllinger ◽  
Dieter Brüggemann
Keyword(s):  
Ionic Liquid ◽  
Waste Heat ◽  
Low Grade ◽  
Absorption Chillers

Absorption Heat Pump/Refrigeration System Utilizing Ionic Liquid and Hydrofluorocarbon Refrigerants

2012 ◽  
Vol 134 (3) ◽  
Author(s):  
Sarah Kim ◽  
Yoon Jo Kim ◽  
Yogendra K. Joshi ◽  
Andrei G. Fedorov ◽  
Paul A. Kohl
Keyword(s):  
Ionic Liquid ◽  
Heat Pump ◽  
Waste Heat ◽  
Working Fluid ◽  
Coolant Temperature ◽  
Low Grade ◽  
Outlet Temperature ◽  
Refrigeration System ◽  
Pump System ◽  
Absorption Heat Pump

The ionic liquid butylmethylimidazolium hexafluorophosphate (bmim)(PF6) and five different hydrofluorocarbon refrigerants were investigated as the working fluid pairs for a waste-heat driven absorption heat pump system for possible applications in electronics thermal management. A significant amount of the energy consumed in large electronic systems is used for cooling, resulting in low grade waste heat, which can be used to drive an absorption refrigeration system if a suitable working fluids can be identified. The Redlich–Kwong-type equation of state was used to model the thermodynamic conditions and the binary mixture properties at the corresponding states. The effects of desorber and absorber temperatures, waste-heat quality, and system design on the heat pump performance were investigated. Supporting experiments using R134a/(bmim)(PF6) as the working fluid pair were performed. Desorber and absorber outlet temperatures were varied by adjusting the desorber supply power and the coolant temperature at the evaporator inlet, respectively. For an evaporator temperature of 41 °C, which is relevant to electronics cooling applications, the maximum cooling-to-total-energy input was 0.35 with the evaporator cooling capability of 36 W and the desorber outlet temperature in the range of 50 to 110 °C.

A Flexible Bilayer Actuator Based on Liquid Crystal Network and PVDF–TrFE for Low‐Grade Waste Heat Harvesting

2020 ◽  
Vol 8 (10) ◽  
pp. 2000612
Author(s):  
Ying Han ◽  
Chunli Jiang ◽  
Hanmei Fu ◽  
Chunhua Luo ◽  
Hechun Lin ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Waste Heat ◽  
Low Grade ◽  
Crystal Network ◽  
Waste Heat Harvesting

An over 10% module efficiency using non-Bi2Te3 thermoelectric materials for recovering heat of <600 K

2021 ◽  
Author(s):  
Zhonglin Bu ◽  
Xinyue Zhang ◽  
Yixin Hu ◽  
Zhiwei Chen ◽  
Siqi Lin ◽  
...  
Keyword(s):  
Solid State ◽  
Thermoelectric Materials ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Low Grade ◽  
Thermoelectric Modules ◽  
Module Efficiency

Thermoelectric technology offers unique advantages of all solid-state, silent and emission-free for waste-heat recovery applications. Yet existing thermoelectric modules, in particular for recovering low-grade but abundant heat of <600 K,...

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