Abstract
Renewable energy sources have the potential to mitigate environmental risks by replacing fossil fuels. The aim of this study is firstly to consider the use of renewable energy sources to develop a new multigeneration system for meeting the energy demands of residential communities; secondly to analyze the presently developed system using mass, energy, entropy and exergy balance equations; and finally to assess the system's performance in terms of energy and exergy efficiencies. The system uniquely employs an ammonia-water-based triple-effect absorption system with other systems, such as an organic Rankine cycle, a Brayton cycle, and a steam turbine Rankine cycle. The Engineering Equation Solver (EES) software package is used to determine the thermodynamic properties and perform the aforementioned thermodynamic analyses through the constructed codes. The results of this study show that the steam Rankine, Brayton and organic Rankine cycles have energy efficiencies of 35.90%, 19.50%, and 11.49%, respectively, while the exergy analysis reveals that the steam Rankine, Brayton and organic Rankine cycles achieve the corresponding exergy efficiencies of 74.30%, 31.68%, and 23.23%, respectively. Additionally, the energetic and exergetic coefficients of performance (COPs) of the absorption cooling system are determined to be 1.60 and 0.32, respectively.
Published Version
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