Two New Alternative Options for Residues Cost Distribution Ratio
الموضوعات :
Abdul Sattar Dogonchi
1
(Mechanical Engineering Department, Babol Noshirvani University of Technology, Babol, Iran)
S.M. Seyyedi
2
(Department of Mechanical Engineering, University of Sistan and Baluchestan, Zahedan, Iran)
الکلمات المفتاحية: Combined cycle, Residues, Cost allocation, Exergo economic, Negentropy,
ملخص المقالة :
An energy system that produces work, heat and so forth, contains unintended remaining flows of matter or energy called residues. In the conventional thermo economic cost accounting methods, as it is already known, the problem of the residues cost has not been considered thoroughly. The residues cost allocation is a complex problem practically, because it is intertwined with the nature of such flows and the way they are formed. There are several options for the residues cost allocation among which two more important options are: (1) distribution of the residues cost proportionally to the exergy and (2) distribution of the residues cost proportionally to the entropy generation or negentropy. In this paper, for the residues cost distribution ratio, two alternative options are proposed. The proposed options are applied to a combined cycle and results are compared with two different possible options. The results suggest that the proposed options are more proper and reasonable than the alternative options.
References
[1] C. Torres, A. Valero, V. Rangel, A. Zaleta, "On the cost formation process of the residues", Energy, 33 (2008): 144–152.
[2] MA. Lozano, A. Valero, "Theory of the exergetic cost", Energy, 18(9) (1993): 939–960.
[3] A. Bejan, G. Tsatsaronis, M. Moran,"Thermal & design optimization", New York: John Wiley and Sons, 1996.
[4] M. A. Lozano, A. Valero, "Thermoeconomic analysis of a gas turbine cogeneration system", ASME Book no. H00874, WAM 1993, AES, Vol. 30, pp. 312–320.
[5] CA. Frangopoulos, "Thermoeconomic functional analysis. In: CA. Frangopoulos, editor. exergy, energy system analysis and optimization, from encyclopedia of life support system (EOLSS)", Developed under the Auspices of the UNESCO. Oxford: EOLSS Publishers; 2004. Available at: áhttp://www.eolss.netñ.
[6] Y. El-Sayed, "The thermoeconomics of energy conversions", Oxford: Elsevier; 2003.
[7] B. Erlach, L. Serra, A. Valero, "Structural theory as standard for thermoeconomics", Energy Conversion and Management , 40 (1999): 1627–1649.
