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The rapidity and low power consumption of superconducting electronics makes them an ideal substrate for physical reservoir computing, which commandeers the computational power inherent to the evolution of a dynamical system for the purposes…

Performance of nano- and micro-scale heat engines can be improved with a help from quantum mechanical phenomena. Recently, heat reservoirs with quantum coherence have been proposed to enhance engine performance beyond the Carnot limit even…

Quantum Physics · Physics 2024-06-25 Jinuk Kim , Seung-hoon Oh , Daeho Yang , Junki Kim , Moonjoo Lee , Kyungwon An

We propose a quantum-enhanced heat engine with entanglement. The key feature of our scheme is superabsorption, which facilitates enhanced energy absorption by entangled qubits. Whereas a conventional engine with $N$ separable qubits…

Quantum Physics · Physics 2022-06-01 S. Kamimura , H. Hakoshima , Y. Matsuzaki , K. Yoshida , Y. Tokura

Solar Organic Rankine Cycle (ORC)-based power generation plants leverage solar irradiation to produce thermal energy, offering a highly compatible renewable technology due to the alignment between solar irradiation temperatures and ORC…

Optimization and Control · Mathematics 2025-01-20 Silvia Anna Cordieri , Chiara Bordin , Sambeet Mishra

We study how much the efficiency of a solar cell as a quantum heat engine could be enhanced by quantum coherence. In contrast to the conventional approach that a quantum heat engine is in thermal equilibrium with both hot and cold…

Quantum Physics · Physics 2020-05-28 Sangchul Oh

The model-based control of building heating systems for energy saving encounters severe physical, mathematical and calibration difficulties in the numerous attempts that has been published until now. This topic is addressed here via a new…

Systems and Control · Computer Science 2017-09-08 Hassane Abouaïssa , Ola Alhaj Hasan , Cédric Join , Michel Fliess , Didier Defer

In this work, we study the efficiency of charging a quantum battery through optical pumping. The battery consists of a qutrit and it is connected to a natural thermal reservoir and an external coherent drive in the limit where its upper…

Quantum Physics · Physics 2022-11-08 Tiago F. F. Santos , Marcelo F. Santos

The aim of this work is to study heat pump cycles, using CO 2 based mixtures as working fluids. Since adding other chemicals to CO 2 moves the critical point and generally equilibrium lines, it is expected that lower operating pressures as…

Applied Physics · Physics 2017-04-24 Paul Bouteiller , Marie-France Terrier , Pascal Tobaly

In this study, an optimization problem is proposed in order to obtain the maximum economic benefit from wind farms with variable and intermittent energy generation in the day ahead and balancing electricity markets. This method, which is…

Econometrics · Economics 2018-06-15 Akın Taşcikaraoğlu , Ozan Erdinç

Mathematical modelling and defining useful recommendations for construction and regimes of exploitation for hot water solar installation with thermal stratification is the main purpose of this work. A special experimental solar module for…

Computational Engineering, Finance, and Science · Computer Science 2007-05-23 Stanko Vl. Shtrakov , Anton Stoilov

The agricultural irrigation system is closely related to agricultural production. There are some problems in nowadays agricultural irrigation system, such as poor mobility, imprecision and high price. To address these issues, an intelligent…

Robotics · Computer Science 2020-03-03 Minghan Chen , Yilong Sun , Xueqing Cai , Boyi Liu , Tenglong Ren

The ground source heat pump heating system is considered as one of the best solutions for the transition towards green heating under the continental climate conditions like Kazakhstan. In this paper, experimental and theoretical…

Heat pumps are an energy-efficient and increasingly cost-effective solution for reducing greenhouse gas emissions in the building sector. However, other clean energy technologies such as rooftop solar are less likely to be adopted in…

This article explores the electrification in clay calcination, proposing a dynamic model and energy management strategy for the integration of electrified calcination plants into sustainable power grids. A theoretical dynamic modeling of…

Systems and Control · Electrical Eng. & Systems 2024-04-22 Bruno Laurini , Nicola Cantisani , Wilson R. Leal da Silva , Yi Zong , John Bagterp Jørgensen

The triumph of heat engines is their ability to convert the disordered energy of thermal sources into useful mechanical motion. In recent years, much effort has been devoted to generalizing thermodynamic notions to the quantum regime,…

This invention deals with the broad general concept for focussing light. A mini-optics tracking and focussing system is presented for solar power conversion that ranges from an individual's portable system to solar conversion of electrical…

General Physics · Physics 2007-05-23 Mark Davidson , Mario Rabinowitz

Solar irrigation systems are increasingly deployed in rural regions, yet their distributed and remote deployment makes maintenance challenging for farmers. While formal monitoring processes and applications exist, they often fall short in…

Computers and Society · Computer Science 2026-04-13 Arnab Paul Choudhury , Rahul Rathod , Aryan Yadav

Hybrid quantum systems can often be described in terms of polaritons. These are quasiparticles formed of superpositions of their constituents, with relative weights depending on some control parameter in their interaction. In many cases,…

Quantum Physics · Physics 2017-01-04 Qiao Song , Swati Singh , Keye Zhang , Weiping Zhang , Pierre Meystre

Photosynthesis is nature's route to convert intermittent solar irradiation into storable energy, while its use for an industrial energy supply is impaired by low efficiency. Artificial photosynthesis provides a promising alternative for…

Materials Science · Physics 2015-09-16 Matthias M. May , Hans-Joachim Lewerenz , David Lackner , Frank Dimroth , Thomas Hannappel

We demonstrate the robust operation of a gallium arsenide tunable-barrier single-electron pump operating with 1 part-per-million accuracy at a temperature of $1.3$~K and a pumping frequency of $500$~MHz. The accuracy of current quantisation…

Mesoscale and Nanoscale Physics · Physics 2018-10-02 S. P. Giblin , M. -H. Bae , N. Kim , Ye-Hwan Ahn , M. Kataoka