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Bases économiques et thermodynamiques des techniques de comptabilité de l'énergie

Listed author(s):
  • Jean-Baptiste Lesourd
  • Yvon Gousty
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    [fre] Nous montrons dans ce travail comment la solution du problème de l'agrégation des énergies est liée aux contraintes techniques, elles-mêmes issues des lois de la Thermodynamique. A la lumière de notre analyse, trois niveaux d'approximations successives vers cette solution peuvent être envisagés. En première approximation, toutes les énergies consommées sont mesurées et agrégées par leur contenu en chaleur. En seconde approximation, on distingue les sources d'énergie calorifique des sources d'énergie telles que l'électricité et la force motrice. L'énergie consommée à partir des sources d'énergie calorifique est mesurée par leur pouvoir calorifique, pondéré par le rendement technique de conversion de la chaleur ou électricité en force motrice. A l'optimum de PARETO, cette méthode équivaut à une comptabilité en valeur. Enfin, une troisième approximation, qui semble la plus proche de la réalité, consiste à tenir compte de la diversité des qualités de l'énergie consommée, notamment au sein des énergies provenant des sources d'énergie calorifique. [eng] The present work shows how the solution to the problem of agregation of energy consumptions in industry is linked to technical constraints, the latter being imposed by the laws of Thermodynamics. Thanks to our analysis, one can distinguish three stages of approximation towards this solution. At first approximation, all the quantities of energy consumed are measured by their heat content. As a second approximation, the energy sources are classified as heat sources on the first hand, and (electric and mechanical) power sources on the second hand. The energy coming from heat sources is measured by their heat content, with a coefficient equal to the technical efficiency for heat conversion into mechanical work or electricity. It is shown that, at PARETO optimality, this amounts to aggregation in value. At last, a third approximation, which appears to be closest to the empirical reality, consists in accounting for the different qualities of energy consumed, especially as far as heat sources are concerned.

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    Article provided by Programme National Persée in its journal Revue d'économie industrielle.

    Volume (Year): 15 (1981)
    Issue (Month): 1 ()
    Pages: 44-59

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    Handle: RePEc:prs:recind:rei_0154-3229_1981_num_15_1_1993
    Note: DOI:10.3406/rei.1981.1993
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