scholarly journals Low-Grade Waste Heat Recovery via an Osmotic Heat Engine by Using a Freestanding Graphene Oxide Membrane

ACS Omega ◽  
2018 ◽  
Vol 3 (11) ◽  
pp. 15501-15509 ◽  
Author(s):  
Xin Tong ◽  
Xin Wang ◽  
Su Liu ◽  
Haiping Gao ◽  
Runlong Hao ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Heat Engine ◽  
Low Grade ◽  
Oxide Membrane

Energy Storage and Waste Heat Recovery: A Synergistic Effect Benefiting Renewable Energy

2011 ◽  
Author(s):  
Richard B. Peterson ◽  
Robbie Ingram-Goble ◽  
Kevin J. Harada ◽  
Hailei Wang
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Heat Pump ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Heat Engine ◽  
Low Grade ◽  
Round Trip ◽  
Low Grade Heat

In order for renewable energy to displace 20% or more of the conventional power generating base without depending on significant hot spinning reserves, reliable and cost effective energy storage will be needed at the utility scale. Developing and deploying practical energy storage at this level is a major challenge and no single technology appears to have a dominant position. Storing electrical energy by way of thermal storage at moderate-to-low temperatures has not received much attention in the past. In fact, the conventional thinking is that heat pump/heat engine mediated energy storage is too inefficient (round trip efficiency of 30% or lower) to be practical. However, an innovative and efficient storage approach is proposed in this paper by incorporating sensible heat storage in a Rankine-type heat pump/heat engine cycle to increase the round trip efficiency. Furthermore, by using a source of waste (or otherwise low-grade) heat, round trip efficiencies can be enhanced further. Currently, there appears to be no significant linkage between waste heat recovery and grid-level energy storage, although the market opportunity for each is considerable. Using the thermal approach described here, a system can be created that uses very low-grade heat in the range between 50 to 70 °C. Furthermore, conventional technology can be used to implement the system where no extreme conditions are present anywhere in the cycle. Hence, it is thought to have advantages over other energy storage concepts being developed.

scholarly journals Exceptional thermoelectric performance in Mg3Sb0.6Bi1.4 for low-grade waste heat recovery

2019 ◽  
Vol 12 (3) ◽  
pp. 965-971 ◽  
Author(s):  
Kazuki Imasato ◽  
Stephen Dongmin Kang ◽  
G. Jeffrey Snyder
Keyword(s):  
Conversion Efficiency ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Thermoelectric Performance ◽  
Type Material ◽  
Low Grade ◽  
Thermoelectric Conversion

An n-type material with intrinsically higher thermoelectric conversion efficiency than Bi2Te3 in the low-grade waste-heat range has finally been developed.

Near-Field Thermophotonic Systems for Low-Grade Waste-Heat Recovery

Nano Letters ◽  
2018 ◽  
Vol 18 (8) ◽  
pp. 5224-5230 ◽  
Author(s):  
Bo Zhao ◽  
Parthiban Santhanam ◽  
Kaifeng Chen ◽  
Siddharth Buddhiraju ◽  
Shanhui Fan
Keyword(s):  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Near Field ◽  
Low Grade

A bimetallic thermally-regenerative ammonia-based flow battery for low-grade waste heat recovery

2019 ◽  
Vol 424 ◽  
pp. 184-192 ◽  
Author(s):  
Weiguang Wang ◽  
Gequn Shu ◽  
Hua Tian ◽  
Dongxing Huo ◽  
Xiuping Zhu
Keyword(s):  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Low Grade ◽  
Flow Battery

Thermo-economic optimization of small-scale Organic Rankine Cycle: A case study for low-grade industrial waste heat recovery

Energy ◽  
2020 ◽  
Vol 213 ◽  
pp. 118898
Author(s):  
Bernardo Peris ◽  
Joaquín Navarro-Esbrí ◽  
Carlos Mateu-Royo ◽  
Adrián Mota-Babiloni ◽  
Francisco Molés ◽  
...  
Keyword(s):  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Small Scale ◽  
Low Grade ◽  
Economic Optimization ◽  
Industrial Waste Heat
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