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Cited by 278

The DOI matches its Crossref record; 16 of the 16 references it cites were found in a registry or an index.

Performance of discrete heat engines and heat pumps in finite time

Open access
Feldmann, Tova, Kosloff, Ronnie·2000·Physical Review E
DOI 10.1103/physreve.61.4774
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Abstract

The performance in finite time of a discrete heat engine with internal friction is analyzed. The working fluid of the engine is composed of an ensemble of noninteracting two level systems. External work is applied by changing the external field and thus the internal energy levels. The friction induces a minimal cycle time. The power output of the engine is optimized with respect to time allocation between the contact time with the hot and cold baths as well as the adiabats. The engine's performance is also optimized with respect to the external fields. By reversing the cycle of operation a heat pump is constructed. The performance of the engine as a heat pump is also optimized. By varying the time allocation between the adiabats and the contact time with the reservoir a universal behavior can be identified. The optimal performance of the engine when the cold bath is approaching absolute zero is studied. It is found that the optimal cooling rate converges linearly to zero when the temperature approaches absolute zero.

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Metadata

Authors
Feldmann, T., & Kosloff, R.
Venue
Physical Review E
Publisher
American Physical Society (APS)
Published
2000-05-01
Volume
61
Issue
5
Pages
4774-4790
ISSN
  • 1063-651X (ISSN-L)
  • 1095-3787
DOI
10.1103/physreve.61.4774
OpenAlex
W2015129456
Cited by
278
References
16
FWCI
3.22
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Performance of discrete heat engines and heat pumps in finite time. https://app.cochat.ai/papers/10.1103/physreve.61.4774
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Feldmann, T., & Kosloff, R. (2000). Performance of discrete heat engines and heat pumps in finite time. Physical Review E. https://doi.org/10.1103/physreve.61.4774

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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.