Exergy analysis of a steam power plant: a case study in Iran

Autor:	Mofid Gorji-Bandpy, Vahid Ebrahimian
Rok vydání:	2007
Předmět:	Exergy Power station business.industry Boiler (power generation) Thermodynamics Steam-electric power station Combustion Thermodynamic system General Energy Heat transfer Exergy efficiency Environmental science Process engineering business
Zdroj:	International Journal of Exergy. 4:54
ISSN:	1742-8300 1742-8297
Popis:	In the last decades, exergy analysis, based on the second law of thermodynamics was a method that substituted the energy analysis in studying thermodynamic systems. In this paper, the cycle of a power plant and its details, with two kinds of fuels, natural gas and diesel, have been analysed at its maximum load and the two factors, losses and exergy efficiency, which are the basic factors used to study systems, have been analysed. The results show that the boiler of a power plant is the most effective section in eliminating exergy. In case of energy analysis, condenser losses the most of heat. The losses and exergy efficiency of the processes of the boiler including heat transfer and combustion were studied, and the effect of changes in the inner conditions of the boiler and the effects of the environmental conditions on the efficiency were scrutinised. The exergy analysis of the boiler shows that heat transfer processes involve more exergy destruction than combustion processes.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f5dae44a19161f3b02cb5e5bdabe9f71 https://doi.org/10.1504/ijex.2007.011579 Zobrazit plný text záznamu