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Updated: Sep 17, 2025

Asymmetric Thermoelectrochemical Cell for Harvesting Low-grade Heat under Isothermal Operation
09:09

Asymmetric Thermoelectrochemical Cell for Harvesting Low-grade Heat under Isothermal Operation

Published on: February 5, 2020

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基于水凝的热电化学电池用于在被动冷却条件下回收废热

Matteo Bevione1, Gopal Narmada Naidu1, Giulia Tagliabue1

  • 1Laboratory of Nanoscience for Energy Technologies (LNET), Faculty of Engineering (STI), École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland. giulia.tagliabue@epfl.ch.

Materials horizons
|July 2, 2025
PubMed
概括

基于水凝的热电电化学电池 (HyTEC) 有效地将低温废热转化为电力. 这些稳定的HyTEC为可持续的能源发电提供了有希望的解决方案,即使在被动冷却条件下.

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A Gusseted Thermogradient Table to Control Soil Temperatures for Evaluating Plant Growth and Monitoring Soil Processes07:40

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相关概念视频

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Refrigerators and Heat Pumps

Refrigerators or heat pumps are heat engines operating in a reverse direction. For a refrigerator, the focus is on removing heat from a specific area, whereas, for a heat pump, the focus is on dumping heat into one particular area. A refrigerator (or heat pump) absorbs heat Qc from the cold reservoir at Kelvin temperature Tc and discards heat Qh to the hot reservoir at Kelvin temperature Th, while work W is done on the engine’s working substance.
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Mechanism of heat transfer01:19

Mechanism of heat transfer

Understanding heat transfer mechanisms is essential for understanding how our bodies maintain balance in different environmental conditions. When the environment is thermoneutral, the body is in a state of balance, neither using nor releasing energy to maintain its core temperature. However, when the environment is not thermoneutral, the body employs four heat transfer mechanisms to maintain homeostasis: conduction, convection, evaporation, and radiation. These mechanisms facilitate heat...
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Mechanisms of Heat Transfer II01:20

Mechanisms of Heat Transfer II

In convection, thermal energy is carried by the large-scale flow of matter. Ocean currents and large-scale atmospheric circulation, which result from the buoyancy of warm air and water, transfer hot air from the tropics toward the poles and cold air from the poles toward the tropics. The Earth’s rotation interacts with those flows, causing the observed eastward flow of air in the temperate zones. Convection dominates heat transfer by air, and the amount of available space for the airflow...
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Converting work to heat is an irreversible process, and the purpose of a heat engine is to reverse the effect partially. Heat engines aim to increase the efficiency of the reversal, that is, maximize the work retrieved from heat. If the efficiency of a heat engine were 100%, it would imply reversing the process completely without introducing any other effect. Thus, it would violate the second law of thermodynamics.
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Mechanisms of Heat Transfer01:14

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Heat transfer between the human body and its environment occurs through four main mechanisms: conduction, convection, radiation, and evaporation.
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Endothermic Reaction01:19

Endothermic Reaction

Endothermic ReactionsAn endothermic reaction is a chemical reaction that absorbs energy, usually in the form of heat. Unlike exothermic reactions, which release heat, endothermic reactions draw heat from their surroundings, making the area around them cooler. Common examples include melting ice, boiling water, and cooking food. Even sweating is an endothermic process in which your body absorbs heat to evaporate sweat, helping you cool down.Endothermic reactions play a crucial role in both...
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