Integrated exergy and energy analysis of a multi-generation system for sustainable energy production: a case study on solar energy-based power generation, desalination, and hydrogen production
by Mohammad Javad Shabani; Mojtaba Babaelahi
International Journal of Exergy (IJEX), Vol. 44, No. 2, 2024

Abstract: A novel power, fresh water, hydrogen, and cooling generation system from solar energy and gas turbine waste heat is proposed. It integrates solar collection, multi-stage desalination, hydrogen production/compression, Kalina cycle, organic rankine cycle, Brayton cycle, and ejector refrigeration. A thermodynamic model shows the system achieves 6.366 kg/s freshwater production along with 0.042 kg/s hydrogen and 1,668.4 kW cooling load. The net-power generation is 32.269 MW with an ejector refrigeration coefficient of performance of 0.3193. The overall energy and exergy efficiencies are 38.45% and 35.64%. This innovative integration of renewable energy and waste heat recovery enables highly efficient multi-product generation.

Online publication date: Wed, 26-Jun-2024

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