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Energy storage in steady states under cyclic local energy input
Y Zhang1, R Hołyst1, A Maciołek2
1Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, PL-01-224 Warsaw, Poland.
Physical Review. E
|February 20, 2020
Summary
This study explores energy storage in lattice systems with cyclic energy supply. Findings show stored energy depends on supply details and constraints, with constrained systems storing more energy.
Area of Science:
- Physics
- Thermodynamics
- Statistical Mechanics
Background:
- Understanding energy storage in dynamic systems is crucial for energy harvesting and management.
- Lattice systems offer a fundamental model for studying energy dynamics.
Purpose of the Study:
- To investigate the factors influencing energy storage in a lattice system subjected to periodic external energy supply.
- To analyze the impact of different energy supply protocols and internal constraints on stored energy.
Main Methods:
- Numerical simulations were employed to model the lattice system.
- Various protocols for cyclic energy supply, including different periods and amplitudes, were examined.
- An adiabatic wall was introduced as an internal constraint to study its effect on energy storage.
Main Results:
- Stored energy is sensitive to the specifics of the energy supply, including its period and amplitude, even under constant energy flux.
- Constraining the lattice system with an adiabatic wall resulted in increased stored energy compared to unconstrained systems.
- The system demonstrated a greater capacity for energy storage when energy was delivered in large, infrequent bursts rather than small, frequent ones.
Conclusions:
- The dynamics of energy supply significantly dictate energy storage in lattice systems.
- Internal constraints can enhance the energy storage capabilities of these systems.
- Optimizing energy delivery strategies, favoring larger and rarer inputs, can improve energy storage efficiency.
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