JOURNAL ARTICLE

Chemical heat pumps beyond the Carnot limit.

  • Published In: Modern Physics Letters B, 2024, v. 38, n. 7. P. 1 1 of 3

  • Database: Academic Search Ultimate 2 of 3

  • Authored By: Wang, Junyi; Chen, Jincan; Su, Shanhe 3 of 3

Abstract

Based on the working mechanisms of heat pumps and chemical pumps, a model of the chemical heat pump operating between the two thermal material reservoirs with different temperatures and chemical potentials is established. The general expression of the coefficient of performance (i.e. generalized Carnot coefficient of performance) is derived, and a series of meaningful results are obtained. The different characteristics of the chemical heat pump operating under different conditions are revealed. It is found that the coefficient of performance of the chemical heat pump can be larger than that of the Carnot heat pump operating under the same temperature span or the reversible coefficient of performance of the chemical pump operating under the same chemical potential span. The reason is that the chemical heat pump operating between two thermal material reservoirs is driven by the temperature field and the chemical potential field at the same time. Moreover, it is expounded that these results accord with the second law of thermodynamics. [ABSTRACT FROM AUTHOR]

Additional Information

  • Source:Modern Physics Letters B. 2024/03, Vol. 38, Issue 7, p1
  • Document Type:Article
  • Subject Area:History
  • Publication Date:2024
  • ISSN:0217-9849
  • DOI:10.1142/S0217984923502494
  • Accession Number:174425107
  • Copyright Statement:Copyright of Modern Physics Letters B is the property of World Scientific Publishing Company and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Looking to go deeper into this topic? Look for more articles on EBSCOhost.