Results 61 to 70 of about 141,196 (301)

Thermodynamic optimization on supercritical carbon dioxide Brayton cycles to achieve combined heat and power generation

Energy Conversion and Management, 2022
Abstract The development of combined heat and power (CHP) systems based on the supercritical carbon dioxide (SCO2) Brayton cycle is important to enhance the energy utilization efficiency and satisfy different energy demands. Therefore, this study summarizes and compares the SCO2 CHP configurations in terms of back-pressure heating (system without pre-
Ruiqiang Sun, Ming Liu, Xun Chen, Kaixuan Yang, Junjie Yan   +4 more
openaire   +1 more source

Water Permeates and Plasticizes Amorphous Carbon Dots: Unraveling the Inner Accessibility of the Nanoparticles by Glass Transition Studies

Advanced Materials, EarlyView.
The water permeability of amorphous carbon dots (CDs) is demonstrated by investigating their plasticization. Novel polyamide‐based and amorphous nanoparticles are synthesized by controlling their inner packing density. Water plasticization is evidenced by the decrease of the CDs glass transition temperature with increasing the hydration degree.
Elisa Sturabotti, Valerio Di Lisio, Lucia Cardo, Alessandro Camilli, Estela Moretón Alfonsín, Daniele Cangialosi, Amaia Iturrospe Ibarra, Arantxa Arbe, Maurizio Prato   +8 more
wiley   +1 more source

Flexoelectrically Induced Polar Topology in Twisted SrTiO3 Membranes

Advanced Materials, EarlyView.
Twisted SrTiO3 bilayers host polar vortices of flexoelectric origin, revealed through combined experiment and theory. By reconstructing polarization from the toroidal moment of strain gradients, the work establishes a 3D chiral state with broken inversion and mirror symmetries.
Isabel Tenreiro, Hugo Aramberri, Víctor Rouco, Gabriel Sánchez‐Santolino, Mariona Cabero, Fernando Gallego, David Sánchez‐Manzano, José M. González‐Calbet, Federico Mompeán, Mar García‐Hernández, Alberto Rivera‐Calzada, Jorge Íñiguez‐González, Carlos León, Jacobo Santamaría   +13 more
wiley   +1 more source

Generalized first-principles prediction of hydrogen para-equilibrium thermodynamics in metal hydrides

npj Computational Materials
Accurate first-principles-based prediction of the pressure-composition-temperature (PCT) relationships of metal hydrides can enable predictive optimization of hydrogen capacities and pressures.
Peter Hannappel, Matthew T. Curnan, Geun Ho Gu, M. Palumbo, Mateusz Balcerzak, Thomas Weißgärber, Felix Heubner   +6 more
semanticscholar   +1 more source

Thermodynamic Evaluation of Generator Temperature in LiBr-Water Absorption System for Optimal Performance

Energy Procedia, 2017
Abstract A thermodynamic optimization analysis of single effect LiBr-H 2 O vapour absorption cooling system of 1 TR capacity is conducted based on first and second laws. Mathematical models derived from thermodynamics theory, are employed in engineering equation solver to perform the calculations. Minimum generator temperature required to operate the
Pandya, Bhargav, Patel, Jatin, Mudgal, Anurag   +2 more
openaire   +1 more source

Thermodynamic, environmental, and optimization of a new power generation system driven by a gas turbine cycle

Energy Reports, 2020
This study aims at the proposal of a novel waste heat recovery system to recover the waste heat of the gas turbine cycle. Thus, a novel power generation system is devised based on the gas turbine cycle and Kalian cycle. To evaluate the performance of the system, the energy, exergy, and environmental analysis is carried out.
Bo Zhang, Yuanxiang Chen, Zhiguo Wang, Hamid Shakibi   +3 more
openaire   +2 more sources

Atomistic Mechanisms Triggered by Joule Heating Effects in Metallic Cu‐Bi Nanowires for Spintronics

Advanced Materials, EarlyView.
Bi doped metallic Cu nanowires are promising for spintronics thanks to the stabilization of a giant spin Hall effect. However, heat resulting from current injection forces Bi to leave solution, forcing segregation into monoatomic decorations which evolve into coherent crystalline aggregates.
Alejandra Guedeja‐Marrón, Juan Ignacio Beltrán, Matilde Saura‐Múzquiz, Paolo Perna, M. Carmen Muñoz, Lucas Pérez, Maria Varela   +6 more
wiley   +1 more source

Generalized Finite-time Optimal Control Framework in Stochastic Thermodynamics

Optimal processes in stochastic thermodynamics are a frontier for understanding the control and design of non-equilibrium systems, with broad practical applications in biology, chemistry, and nanoscale/mesoscale systems. Optimal mass transport theory and thermodynamic geometry have emerged as optimal control methodology, but they are based on slow ...
Mohite, Atul Tanaji, Rieger, Heiko
openaire   +2 more sources

Polymorph‐Specific Electronic Transduction in WO3 during Molecular Sensing

Advanced Materials, EarlyView.
Metal‐oxide polymorphs with similar surface chemistry can nevertheless exhibit distinct sensing properties. In γ‐ and ε‐WO3, analyte adsorption appears comparable; yet, only ε‐WO3 induces a pronounced lattice electronic perturbation that accommodates charge in sub‐conduction band minimum states.
Matteo D'Andria, Meng Yin, Stefan Neuhauser, Vlasis G. Mavrantzas, Ying Chen, Ken Suzuki, Andreas T. Güntner   +6 more
wiley   +1 more source

Evidence for Itinerant Ferromagnetic Flat Bands Producing Large Transverse Responses

Advanced Materials, EarlyView.
Itinerant ferromagnetic flat bands are demonstrated in GdCo5 with a high Curie temperature of 940K, a stacked honeycomb–kagome lattice, through angle‐resolved photoemission spectroscopy and magneto‐thermoelectric measurements. These topological flat bands generate large Berry curvaturte, producing gigantic anomalous Nernst effect with record‐high ...
Susumu Minami, Yangming Wang, Seigo Souma, Hiroto Nakamura, Akito Sakai, Takumi Osumi, Hang Su, Hikaru Watanabe, Shun'ichiro Kurosawa, Rikuto Oiwa, Daisuke Nishio‐Hamane, Kosuke Nakayama, Takuya Nomoto, Ryotaro Arita, Takafumi Sato, Satoru Nakatsuji   +15 more
wiley   +1 more source