Performance optimization of total momentum filtering double-resonance energy selective electron heat pump

Ze-Min Ding, Lin-Gen Chen, Yan-Lin Ge and Feng-Rui Sun

Physica A: Statistical Mechanics and its Applications, 2016, vol. 447, issue C, 49-61

Abstract: A theoretical model for energy selective electron (ESE) heat pumps operating with two-dimensional electron reservoirs is established in this study. In this model, a double-resonance energy filter operating with a total momentum filtering mechanism is considered for the transmission of electrons. The optimal thermodynamic performance of the ESE heat pump devices is also investigated. Numerical calculations show that the heating load of the device with two resonances is larger, whereas the coefficient of performance (COP) is lower than the ESE heat pump when considering a single-resonance filter. The performance characteristics of the ESE heat pumps in the total momentum filtering condition are generally superior to those with a conventional filtering mechanism. In particular, the performance characteristics of the ESE heat pumps considering a conventional filtering mechanism are vastly different from those of a device with total momentum filtering, which is induced by extra electron momentum in addition to the horizontal direction. Parameters such as resonance width and energy spacing are found to be associated with the performance of the electron system.

Keywords: Energy selective electron heat pump; Double resonance; Total momentum filtering mode; Optimal performance; Finite-time thermodynamics (search for similar items in EconPapers)
Date: 2016
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Citations: View citations in EconPapers (7)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:447:y:2016:i:c:p:49-61

DOI: 10.1016/j.physa.2015.11.017

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