Abstract
Maximizing the synergy between renewable resources and efficient multi-generation systems is crucial for transitioning the energy sector towards carbon-free production. The objective of this research paper is to investigate and optimize the performance of an integrated solar trigeneration plant. Electrical load and domestic heating supply are provided through an organic Rankine cycle and heat exchanger respectively. Cooling needs are provided using a single-effect double-lift absorption chiller (SE-DL ACH), a novel combination seldom encountered within multigeneration systems. Various collectors are evaluated, and an initial screening of organic fluids is done. A comprehensive analysis framework is developed, considering energy, exergy, and the sequence of energy usage, which is clarified into sequential (SSI) and parallel (PSI) integration.The final result indicates that n-decane is the most appropriate fluid, yielding thermal and electrical efficiencies of 11.93 % and 5 kW, respectively. Among the collectors evaluated, EFPC emerges as the most promising. SSI delivers electrical, cooling, and heating output of 5 kW, 105.7 kW, and 29.25 kW, with energy and exergy efficiencies of 45.6 % and 41.3 %. PSI demonstrates an improvement of 11.92 % and 43.08 % in cooling and heating generation. It exhibits an energy and exergy efficiency of 43.03 % and 37.26 %. Integrating the SE-DL parallel to the heat source has improved the potential of heat recovery by 22.22 %.
Published Version
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