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TECHNICAL BRIEFS

A Thermodynamic Based Approach for the Multicriteria Assessment of Energy Conversion Systems

[+] Author and Article Information
Alessandro Franco1

Dipartimento di Energetica “L. Poggi,” University of Pisa, Via Diotisalvi 2, 56126 Pisa, Italya.franco@ing.unipi.it

Ana R. Diaz Vazquez

Dipartimento di Energetica “L. Poggi,” University of Pisa, Via Diotisalvi 2, 56126 Pisa, Italya.franco@ing.unipi.it

1

Corresponding author.

J. Energy Resour. Technol 128(4), 346-351 (Apr 14, 2006) (6 pages) doi:10.1115/1.2358149 History: Received December 02, 2004; Revised April 14, 2006

Abstract

The paper analyzes the links among energy, economy, and the natural environment. This matter requires the reconsideration of energy efficient and low emission technologies and the definition of new instruments for the analysis of energy systems as well as for the definition of energy policies. After an overview of the methods available in the literature, dealing with a multidimensional analysis of energy system, the authors propose a quantitative approach based on the use of two different thermodynamic based utility functions. The utilization of those functions permits to join thermodynamic and environmental performance of the energy system, to analyze the effects of their interaction and to obtain a more logical comparison among different energy systems, accepting the multidimensional nature of the problem but maintaining a system analysis in the way engineers are accustomed to. Two cases are discussed and analyzed.

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Figures

Figure 1

The energy system perspective for the definition of Ψ functions

Figure 2

Conceptual schematization of the procedure for the opitmization of the combined cycle

Figure 3

Flow diagram of the CGAM system (see Ref. 4)

Figure 4

Flow diagram of clean coal-fired plant (see Ref. 21)

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