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Energy Systems for Multigeneration Purposes

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Energy Systems for Multigeneration Purposes ( energy-systems-multigeneration-purposes )

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method was used to predict the performance of a given cogeneration concept under two different operational strategies. Ebrahimi et al. [49] carried out energy and exergy analyses of a micro steam CCHP cycle for a residential building. They analyzed a trigeneration energy system consisting of a steam turbine and an ejector refrigeration system to provide the cooling load for residential buildings. They also optimized the system using a genetic algorithm to determine its maximum overall efficiency. The exergy analysis results revealed that the greatest exergy destruction rate takes place in the steam generator for both summer and winter seasons. Khaliq [50] conducted the exergy analysis for a trigeneration system. The system studied consisted of a gas turbine cycle, a single pressure heat recovery steam generator to provide heating and a single effect LiBr absorption chiller to provide sufficient cooling. He also conducted a comprehensive parametric study to investigate the effects of compressor pressure ratio, gas turbine inlet temperature, combustion chamber pressure drop, and evaporator temperature on the exergy destruction rate in each component, first law efficiency, electrical to thermal energy ratio, and second law efficiency of the system. The exergy analysis results indicated that that maximum exergy destruction rate occurred in the combustion and steam generation process, which represented over 80% of the total exergy destruction rate in the overall system. Kong et al. [51] conducted the energy and economic analyses of a trigeneration plant using a Stirling engine as a prime mover with a conventional plant with a separate production of cooling, heating and power. They concluded that the trigeneration plant with the Stirling engine can save more than 33% of the primary energy compared to the conventional plant. Ziher and Poredos [52] addressed the economics of using a trigeneration plant in a hospital. They calculated the cooling, heating, and power price per kWh on a monthly basis for one year. In order to obtain the cooling capacity, the authors suggested that the use of steam absorption and compression chillers with a cold storage system in the plant. Ahmadi et al. [6] carried out an exergoenvironmental analysis of a trigeneration system based on a micro gas turbine and an organic Rankine cycle (ORC), and performed a parametric study involving the main design parameters of the trigeneration system. Temir and Bilge [53] studied a thermoeconomic analysis of a trigeneration system that produces electrical power with a natural gas fed reciprocating engine and that yields absorption 41

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