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Exergoeconomic Performance Evaluation of Three, Four, and Five-step Thermochemical Copper-chlorine Cycles for Hydrogen Production by Faran Razi; Kasun Hewage; Rehan Sadiq is a Environmental Science article available to read on EtoBox.

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Thermochemical water-splitting processes are among the most promising options for producing sustainable and green hydrogen due to being extremely environmentally benign. Being extensively investigated in the literature, the thermochemical copper-chlorine cycle has demonstrated much promise in this regard as one of the most efficient options for thermochemically obtaining hydrogen. Thus, this study focuses on investigating the exergoeconomic performances of the different variants of the copper-chlorine cycle including the three-, four-, and five-step versions. All cycles are modeled and simulated in Aspen-plus software by considering a recovery of thermal energy from industrial waste flue gases in addition to internal heat recovery. Moreover, a hydrogen production capacity of 668 kg/h is considered for all cycles. The Specific Exergy Costing methodology is employed to study the exergoeconomic performance of each cycle. All cycles are initially examined in terms of the cost rates of energy transfer and hourly levelized cost rates for each step. The cycle variants are further examined through a comparative assessment of several performance parameters including hydrogen cost rates, ove

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Author

Faran Razi; Kasun Hewage; Rehan Sadiq

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Environmental Science (Physical Sciences)