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Most of the power-to-heat and thermal energy storage technologies are mature and impact the European energy transition. However, detailed models of these technologies are usually very complex, making it challenging to implement them in…

Physics and Society · Physics 2022-08-08 Md. Nasimul Islam Maruf , German Morales-Espana , Jos Sijm , Niina Helisto , Juha Kiviluoma

$\textit{In situ}$ environmental transmission electron microscopy (ETEM) is a powerful tool for observing structural modifications taking place in heterogeneous catalysts under reaction conditions. However, to strengthen the link between…

Materials Science · Physics 2021-03-19 Joshua L. Vincent , Jarod W. Vance , Jayse T. Langdon , Benjamin K. Miller , Peter A. Crozier

Building heat electrification is central to economy-wide decarbonization efforts and directly affects energy infrastructure planning through increasing electricity demand and reducing the building sector's use of gas infrastructure that…

Systems and Control · Electrical Eng. & Systems 2024-09-17 Rahman Khorramfar , Morgan Santoni-Colvin , Saurabh Amin , Leslie K. Norford , Audun Botterud , Dharik Mallapragada

This paper studies optimal thermal management and charging of a battery electric vehicle driving over long distance trips. The focus is on the potential benefits of including a heat pump in the thermal management system for waste heat…

Systems and Control · Electrical Eng. & Systems 2022-10-10 Ahad Hamednia , Victor Hanson , Jiaming Zhao , Nikolce Murgovski , Jimmy Forsman , Mitra Pourabdollah , Viktor Larsson , Jonas Fredriksson

Hybrid battery thermal management systems (HBTMS) combining active liquid cooling and passive phase change materials (PCM) cooling have shown a potential for the thermal management of lithium-ion batteries. However, the fill volume of…

Systems and Control · Electrical Eng. & Systems 2024-12-03 Zhipeng Lyu , Jinrong Su , Zhe Li , Xiang Li , Hanghang Yan , Lei Chen

We introduce a class of thermal operations based on the collision model, where the system sequentially interacts with uncorrelated bath molecules via energy-preserving unitaries. To ensure finite complexity, each molecule is constrained to…

Quantum Physics · Physics 2025-12-11 Xueyuan Hu , Valerio Scarani

Reported here are results of theoretical calculations on the hexaaquoferric complex and deprotonated products to investigate the molecular mechanisms of hydrolysis of ferric ion in water. The combination of density functional electronic…

Chemical Physics · Physics 2016-09-28 Richard L. Martin , P. Jeffrey Hay , Lawrence R. Pratt

This paper presents an innovative offshore solution where oil & gas platform clusters are powered by a wind farm and a hydrogen hub. The results show a feasible off-grid design as an alternative to conventional electrification solutions. To…

Systems and Control · Electrical Eng. & Systems 2026-01-27 Maiken Borud Omtveit , Qian Long , Valentin Chabaud , Marte Ruud-Olsen , Steinar Halsne , Tor-Christian Ystgaard

We use molecular dynamics simulations to study the dynamics of an ensemble of interacting self-propelled semi-flexible polymers in contact with a thermal bath. Our intention is to model complex systems of biological interest. We find that…

Soft Condensed Matter · Physics 2011-05-06 Davide Loi , Stefano Mossa , Leticia F. Cugliandolo

We propose a new method to compute the free energy or enthalpy of fluids or disordered solids by computer simulation . The main idea is to construct a reference system by freezing one representative configuration, and then carry out a…

Computational Physics · Physics 2011-03-16 Friederike Schmid , Tanja Schilling

A model of a multilayer device with non-trivial geometrical structure and nonlinear dependencies of thermodynamic material properties at cryogenic temperatures is suggested. A considered device, called cryogenic cell, is intended for use in…

Computational Physics · Physics 2015-11-20 Alexander Ayriyan , Jan Busa , Eugeny E. Donets , Hovik Grigorian , Jan Pribis

At photoelectrosynthetic interfaces, an electrochemical reaction is driven by excited charge-carriers from a semiconducting photoabsorber. Structure and composition of this interface determine both the electronic and electrochemical…

Chemical Physics · Physics 2022-05-30 Matthias M. May , Wolfram Jaegermann

Electrocatalysis is a catalytic process where the rate of an electrochemical reaction occurring at the electrode-electrolyte interface can be controlled by varying the electrical potential. Electrocatalysis can be applied to generate…

We study the optimal green hydrogen production and energy market participation of a renewable-colocated hydrogen producer (RCHP) that utilizes onsite renewable generation for both hydrogen production and grid services. Under deterministic…

Systems and Control · Electrical Eng. & Systems 2026-05-13 Siying Li , Lang Tong , Timothy Mount , Kanchan Upadhyay , Harris Eisenhardt , Pradip Kumar

This paper presents an improved mixed-integer model for the Thermal Unit Commitment Problem. By introducing new variables for the temperature of each thermal unit, the off-time-dependent start-up costs are modeled accurately and with a…

Optimization and Control · Mathematics 2015-06-29 Matthias Silbernagl , Matthias Huber , René Brandenberg

This paper studies the design and dynamic modelling of a novel thermal energy storage (TES) system combined with a refrigeration system based on phase change materials (PCM). Cold-energy production supported by TES systems is a very…

Systems and Control · Electrical Eng. & Systems 2024-02-08 G. Bejarano , J. J. Suffo , M. Vargas , M. G Ortega

Since the internal temperature is less accessible than surface temperature, there is an urgent need to develop accurate and real-time estimation algorithms for better thermal management and safety. This work presents a novel framework for…

Systems and Control · Electrical Eng. & Systems 2025-09-15 Yusheng Zheng , Wenxue Liu , Yunhong Che , Ferdinand Grimm , Jingyuan Zhao , Xiaosong Hu , Simona Onori , Remus Teodorescu , Gregory J. Offer

Thermoelectric power generators are used to convert heat into electricity. Like any other heat engine, the performance of a thermoelectric generator increases as the temperature difference on the sides increases. It is generally assumed…

Classical Physics · Physics 2015-09-09 Mona Zebarjadi

Soft heat engines are poised to play a vital role in future soft robots due to their easy integration into soft structures and low-voltage power requirements. Recent works have demonstrated soft heat engines relying on liquid-to-gas phase…

Robotics · Computer Science 2021-03-29 Charles Xiao , Luke F. Gockowski , Bolin Liao , Megan T. Valentine , Elliot W. Hawkes

Our Society is in high need of alternatives to fossil fuels. Nanoporous systems filled with aqueous electrolytes show great promises for harvesting the osmotic energy of sea water or waste heat. At the core of energy conversion in such…

Fluid Dynamics · Physics 2022-04-29 Cecilia Herrero , Aymeric Allemand , Samy Merabia , Anne-Laure Biance , Laurent Joly
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