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Título
Low-dissipation model of three-terminal refrigerator: performance bounds and comparative analyses
Autor(es)
Materia
finite-time cycle, low-dissipation model, three-terminal refrigerator, performance bounds, comparative analyses
Fecha de publicación
2022-01
Editor
IOP Publishing
Resumen
[EN]In the present paper, a general non-combined model of three-terminal refrigerator
beyond specific heat transfer mechanisms is established based on the
low-dissipation assumption. The relation between the optimized cooling power
and the corresponding coefficient of performance (COP) is analytically derived,
according to which the COP at maximum cooling power (CMP) can be further
determined. At two dissipation asymmetry limits, upper and lower bounds
of CMP are obtained and found to be in good agreement with experimental
and simulated results. Additionally, comparison of the obtained bounds
with previous combined model is presented. In particular it is found that the
upper bounds are the same, whereas the lower bounds are quite different.
This feature indicates that the claimed universal equivalence for the combined
and non-combined models under endoreversible assumption is invalid
within the frame of low-dissipation assumption. Then, the equivalence between
various finite-time thermodynamic models needs to be reevaluated regarding
multi-terminal systems. Moreover, the correlation between the combined and
non-combined models is further revealed by the derivation of the equivalent
URI
ISSN
1751-8113
Versión del editor
Colecciones
- GIOETFE. Artículos [48]