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Optimal Scheduling for Integrated Hydrogen Production System Based on Exergy Analysis

Springer Proceedings in Physics, ISSN: 1867-4941, Vol: 395, Page: 195-205
2024
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Conference Paper Description

A stable and consistent hydrogen supply is essential in various engineering scenarios. To address the challenge of meeting the demand for stable and green hydrogen with high proportion and fluctuating renewable energy input, integrated hydrogen production systems (IHPS) have been developed. Exergy balance is employed to assess the quality of energy loss and identify the size, location, and influencing factors of energy quality loss, which differs from the traditional scheduling problem of cost minimization or the black box model of exergy analysis. Firstly, the energy conservation principle along with the exergy concept for second-law assessment are applied to each system component. Secondly, an optimal scheduling model for IHPS is established that considers mass, energy, and exergy balance as well as operational constraints. The Pareto front of a multi-objective optimization problem is then established to obtain an optimal scheduling scheme with comprehensive performance in exergy efficiency and economics. Finally, case studies are conducted to intuitively show the distribution of exergy destruction and validate the applicability of the proposed dispatch method in efficiently bringing up a scheduling scheme with better overall performance.

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