Abstract
ABSTRACTTo rise the thermal efficiency of power generation systems and to meet stricter environmental regulations, improved system integration based on renewable energy is a viable option. In this context, a syngas fuelled Brayton/Rankine combined power cycle integrated with the Organic Rankine Cycle (ORC) is proposed and analysed from both energetic and exergetic point of views. A thermo-chemical model was developed to predict the composition of syngas produced after biomass gasification, and also, a thermodynamic model was developed, to determine the energetic and exergetic performance of the proposed triple cycle power generation system. We show that both first-law and second-law efficiencies of triple power cycle decreases with the increase in pressure ratio and increases with higher gas turbine inlet temperature. It is further shown that first-law and second-law efficiencies of solid-waste-derived syngas fuelled triple power cycle are considerably higher than the rice husk derived syngas fuelled cycl...
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