Results 61 to 70 of about 4,708 (200)
A simple quantum heat engine [PDF]
, 2002 Quantum heat engines employ as working agents multi-level systems instead of gas-filled cylinders. We consider particularly two-level agents such as electrons immersed in a magnetic field.
Arnaud, Jacques +2 more
core +2 more sources
Efficiency and power of a thermoelectric quantum dot device
, 2013 We study linear response and nonequilibrium steady-state thermoelectric transport through a single-level quantum dot tunnel coupled to two reservoirs held at different temperatures as well as chemical potentials.
Kennes, D. M., Meden, V., Schuricht, D.
core +1 more source
Electrical power production from low-grade waste heat using a thermally regenerative ethylenediamine battery [PDF]
, 2017 Thermally regenerative ammonia-based batteries (TRABs) have been developed to harvest low-grade waste heat as electricity. To improve the power production and anodic coulombic efficiency, the use of ethylenediamine as an alternative ligand to ammonia was
D'Angelo, A +4 more
core +1 more source
Synthesis of α‐Pentafluorosulfanylated‐β2,3‐Amino Esters
ChemistryEurope, Volume 4, Issue 2, February 2026.De novo α‐SF5‐β2,3‐amino esters are now accessible through a straightforward aza‐Michael reaction using a series of newly developed (E)‐α‐SF5‐α,β‐unsaturated esters. Two new, highly functionalized, contiguous tertiary stereocenters are formed with diastereodivergence governed by the choice of solvent and/or base.
Thi Mo Nguyen +5 more
wiley +1 more source
Comparison of Conventional and Microwave Heating
SolarPACES Conference ProceedingsCarnot batteries (or Power-to-Heat-to-Power systems) are capable of increasing the use of electricity from photovoltaic or wind power plants to achieve decarbonisation of the electricity sector.
Cristóbal Valverde +3 more
doaj +1 more source
ChemistryEurope, Volume 4, Issue 1, January 2026.Direct air capture (DAC) of carbon dioxide (CO2) emerges as a key strategy for climate crisis mitigation. Redox‐mediated electrochemical carbon capture offers a promising route for energy‐efficient DAC. This perspective discusses recent advances in the field, highlighting key challenges, such as oxygen interference at low CO2 concentrations, and ...
Tilmann J. Neubert, Martin Oschatz
wiley +1 more source
Multi-objective optimization and design of a Carnot Battery for energy storage applications
Energy Conversion and Management: XThis study presents a numerical design and optimization of a Heat Pump-Organic Rankine Cycle based Carnot Battery, focusing on determining the optimal nominal operating conditions for selecting key components for the construction of a small-scale test ...
Ivo Silva +2 more
doaj +1 more source
Quantum Equivalence and Quantum Signatures in Heat Engines
, 2015 Quantum heat engines (QHE) are thermal machines where the working substance is quantum. In the extreme case the working medium can be a single particle or a few level quantum system.
Kosloff, Ronnie +2 more
core +2 more sources
Solar Dish Collectors for Hydrogen Production: A Review
International Journal of Energy Research, Volume 2026, Issue 1, 2026.Solar‐driven hydrogen production stands at the nexus of the global transition toward net‐zero energy systems. This review surveys the role of solar dish collectors (SDCs) as high‐flux concentrators that can directly or indirectly split water, positioning hydrogen as a long‐duration, carbon‐free energy carrier.
Ali Sulaiman Alsagri +2 more
wiley +1 more source
Quantacell: Powerful charging of quantum batteries
, 2015 We study the problem of charging a quantum battery in finite time. We demonstrate an analytical optimal protocol for the case of a single qubit. Extending this analysis to an array of N qubits, we demonstrate that an N-fold advantage in power per qubit ...
Binder, Felix C. +3 more
core +1 more source