Optimal paths for minimizing entropy generation in a common class of finite-time heating and cooling processes

Bjarne Andresen; J. M. Gordon

doi:10.1016/0142-727X(92)90043-9

Optimal paths for minimizing entropy generation in a common class of finite-time heating and cooling processes

Bjarne Andresen
, J. M. Gordon

Research output: Contribution to journal › Article › peer-review

98 Scopus citations

Abstract

For a common class of finite-time heat transfer processes, we derive optimal heating and cooling strategies for minimizing entropy generation. Solutions pertain to a generalized heat transfer law, and are illustrated quantitatively for cases of practical interest, including Newtonian and radiative heat transfer. Optimal paths are compared with the common strategies of constant heat flux and constant source (reservoir) temperature operation, including evaluation of the savings in entropy generation and the relative requirements for installed heating/cooling capacity.

Original language	English
Pages (from-to)	294-299
Number of pages	6
Journal	International Journal of Heat and Fluid Flow
Volume	13
Issue number	3
DOIs	https://doi.org/10.1016/0142-727X(92)90043-9
State	Published - 1 Jan 1992

Keywords

entropy generation
finite-time thermodynamics
heat exchange
installed capacity
optimal control

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering
Fluid Flow and Transfer Processes

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10.1016/0142-727X(92)90043-9

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title = "Optimal paths for minimizing entropy generation in a common class of finite-time heating and cooling processes",

abstract = "For a common class of finite-time heat transfer processes, we derive optimal heating and cooling strategies for minimizing entropy generation. Solutions pertain to a generalized heat transfer law, and are illustrated quantitatively for cases of practical interest, including Newtonian and radiative heat transfer. Optimal paths are compared with the common strategies of constant heat flux and constant source (reservoir) temperature operation, including evaluation of the savings in entropy generation and the relative requirements for installed heating/cooling capacity.",

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AU - Gordon, J. M.

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N2 - For a common class of finite-time heat transfer processes, we derive optimal heating and cooling strategies for minimizing entropy generation. Solutions pertain to a generalized heat transfer law, and are illustrated quantitatively for cases of practical interest, including Newtonian and radiative heat transfer. Optimal paths are compared with the common strategies of constant heat flux and constant source (reservoir) temperature operation, including evaluation of the savings in entropy generation and the relative requirements for installed heating/cooling capacity.

AB - For a common class of finite-time heat transfer processes, we derive optimal heating and cooling strategies for minimizing entropy generation. Solutions pertain to a generalized heat transfer law, and are illustrated quantitatively for cases of practical interest, including Newtonian and radiative heat transfer. Optimal paths are compared with the common strategies of constant heat flux and constant source (reservoir) temperature operation, including evaluation of the savings in entropy generation and the relative requirements for installed heating/cooling capacity.

KW - entropy generation

KW - finite-time thermodynamics

KW - heat exchange

KW - installed capacity

KW - optimal control

UR - https://www.scopus.com/pages/publications/0026922967

U2 - 10.1016/0142-727X(92)90043-9

DO - 10.1016/0142-727X(92)90043-9

M3 - Article

AN - SCOPUS:0026922967

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JO - International Journal of Heat and Fluid Flow

JF - International Journal of Heat and Fluid Flow

IS - 3

ER -

Optimal paths for minimizing entropy generation in a common class of finite-time heating and cooling processes

Abstract

Keywords

ASJC Scopus subject areas

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