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 and 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.

Thermodynamic, exergo-economic and exergo-environmental analysis of hybrid geothermal-solar power plant based on ORC cycle using emergy concept

“…For the proposed cycle analysis, all input variables must be converted to equivalent "solar emergy jules" (SEJs). These conversions can be done by multiplying the input variable by the corresponding unit energy value (UEV) or the conversion factor the emergy used to generate a given amount of energy, mass, etc (Rafat et al, 2019). Conversion coefficient values usually appear in the amount of energy-based emergy.…”

“…Finally, the conversion coefficient of the system is defined to determine the amount of emergy used to generate the required power (Rafat et al, 2019).…”

“…The exergo-environmental factor (Bassetti et al, 2018). The monetary emergy rate for all exergy flows (Rafat et al, 2019).…”

Energy, exergy, exergoeconomic, and exergoenvironmental analyses and multi-objective optimization of a CPC driven solar combined cooling and power cycle with different working fluids

“…The economic and environmental impact assessment of the system has been carried out. Rafat et al [30]have analyzed a small solar-driven Kalina power plant from an energy, exergy, economic and environmental perspective. The comparative analysis between the proposed solar Kalina cycle and some renewable and fossil power plants has been done in terms of energy and exergy performance.…”

Assessing the sustainability of grass-based livestock husbandry in Hulun Buir, China

“…desarrollaron un análisis similar al convertir los costos de plantas de residuos electrónicos a términos emergéticos con el fin de incluirlos dentro de los cálculos de los indicadores de emergía. La investigación presentada porGiannetti et al (2015) realizó el análisis económico desde la perspectiva del valor de la inversión en un proceso de producción de pieles y adicionalmente generaron un flujo equivalente emergético monetario al relacionar el PIB con los flujos de emergía.En el trabajode Merlin & Boileau (2017) se presentaron los datos económicos del proceso de dos plantas de biogás, los cuales se convierten en términos emergéticos por medio de transformicidades, y al final se calculan los indicadores emergéticos para caracterizar ambientalmente el proceso Rafat et al (2019). realizaron un análisis emergético y exergético para un ciclo de generación solar en una ciudad, en donde los flujos exergéticos se convierten en dinero para evidenciar la destrucción de exergía como destrucción de dinero.…”