Low‐Grade Heat Harvesting: Efficient Low‐Grade Heat Harvesting Enabled by Tuning the Hydration Entropy in an Electrochemical System (Adv. Mater. 13/2021)energy conversion efficiencyhydration entropylow‐grade heat harvestingmonovalent cationsthermally regenerative electrochemical cycle...
Converting low-grade heat into useful electricity requires a technology that is efficient and cost effective. Here, we demonstrate a cellulosic membrane that relies on sub-nanoscale confinement of ions in oxidized and aligned cellulose molecular chains to enhance selective diffusion under a thermal gradi...
The devices and methods herein present a new quasi-solid-state hydrogel based i-TE generator to convert heat to electricity, which can provide a large amount of thermopower and great device flexibility for heat harvesting applications. Moreover, it is more cost-effective in low-grade heat regimes...
Based on thermosyphon effect of room temperature liquid metal, a technical strategy of harvesting low grade heat to generate electricity was proposed. A conceptual system was constructed and an open circuit voltage of 2.62 V with an electrical output power of 110 mW was yielded when the heating ...
Liquid-based TECs are promising for low-grade heat harvesting as their temperature coefficient (\(\alpha = \frac{{\partial V}}{{\partial T}}\),Vis the electrode voltage,Tis the temperature) is one order of magnitude higher than those of TEs (Seebeck coefficient of 100–200 µV K...
Efficient and low-cost thermal energy-harvesting systems are needed to utilize the tremendous low-grade heat sources. Although thermoelectric devices are attractive, its efficiency is limited by the relatively low figure-of-merit and low-temperature differential. An alternative approach is to explore th...
Testing and Thermodynamic Analysis of Low-Grade Heat Power Generation System Using Organic Rankine Cycle Low grade heat power generation system using Organic Rankine Cycle (ORC) was introduced in this work. This system behaved better in thermodynamic efficienc... G Wei,Y Weng,G Cao - Springer Ber...
Then, we highlight the key challenges, that is, low-cost preparation, high thermoelectric power, long-time stable operation of thermogalvanic hydrogels, and broader applications in heat harvesting and thermoelectric sensing. Keywords: self-powered; hydrogels; thermogalvanic; low-grade thermal energy; ...
Thermodynamics Analysis of a Novel Compressed Air Energy Storage System Combined with Solid Oxide Fuel Cell–Micro Gas Turbine and Using Low-Grade Waste Heat as Heat Source. Energies 2023, 16, 7010. https://doi.org/10.3390/en16197010 AMA Style Yang C, Sun L, Chen H. Thermodynamics Analysis...
buildings [2]. There are significant waste heat resources in Northern China which can satisfy most heating buildings in northern China, which will be about 20 billion m2in the future according to the estimation. However, these low-grade waste heat is far away from the urban heat load center,...