Performance of a simple energetic-converting reaction model using linear irreversible thermodynamics

J. C. Chimal-Eguia, R. Paez-Hernandez, Delfino Ladino-Luna, Juan Manuel Velázquez-Arcos

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    In this paper, the methodology of the so-called Linear Irreversible Thermodynamics (LIT) is applied to analyze the properties of an energetic-converting biological process using simple model for an enzymatic reaction that couples one exothermic and one endothermic reaction in the same fashion as Diaz-Hernandez et al. (Physica A, 2010, 389, 3476-3483). We extend the former analysis to consider three different operating regimes; namely, Maximum Power Output (MPO), Maximum Ecological Function (MEF) and Maximum Efficient Power Function (MEPF), respectively. Based on the later, it is possible to generalize the obtained results. Additionally, results show analogies in the optimal performance between the different optimization criteria where all thermodynamic features are determined by three parameters (the chemical potential gap Δ = μ14/RT, the degree of coupling q and the efficiency η). This depends on the election that leads to more or less efficient energy exchange.

    Original languageEnglish
    Article number1030
    Issue number11
    StatePublished - 1 Nov 2019



    • Enzymatic reaction model
    • Linear irreversible thermodynamics
    • Maximum ecological Function
    • Maximum efficient power function
    • Maximum power output

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