Sustainability Analysis of Low Temperature Solar-Driven Kalina Power Plant Using Emergy Concept

Abstract

Selection, design, and optimization of the energy system with the efficient method is one the major problem in recent years. The combined Emergy-Exergy-Economic-Environmental analysis is one of these new methods selected for the analysis and optimization of energy systems. In this paper, the low temperature small solar-driven Kalina power plant is selected for distributed power generation in Qom city. The analysis procedure based on Emergy, Exergy, Economic and Environmental concepts is performed in two general steps. In the first step, the thermodynamic and exergy analysis is performed and the required thermodynamic and exergetic parameters are determined. For the calculation of emergy for different component and mass flow, in the second step, the weight and price of all equipment are evaluated and the emergy analysis is performed. Based on this analysis the emergy evaluation parameters such as monetary an ecological performance are presented and based on these parameters, the most destructive equipment is selected and a suitable procedure for improvement in the considered system is presented. In the final step, the exergy and emergy parameters in the proposed solar Kalina cycle are compared with some renewable and fossil power plant and this comparison show that the proposed cycle has suitable characteristics.

Keywords

• Kalina,Solar,Power,Exergy,emergy,monetary,ecological

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