Synchronous optimization framework for the integrated hydrogen network and heat exchanging system: A decomposition optimization strategy of the system based on the structure generation method

Abstract

Economic cost optimization of the hydrogen network has been investigated to achieve better hydrogen management with a single optimal solution. However, production fluctuation evoked by the changing condition of hydrogen and carbon emissions caused by energy consumption may render the single solution to be restrictive. In this work, a multi-dimensional assessment method is proposed, aiming to comprehensively estimate the potential solutions that could perform more stably with better environmental impact. A decomposition strategy is developed to generate potential structures of integrated hydrogen networks and heat exchangers. The results show that compared to a single traditional optimal solution, the solution set with a multi-dimensional assessment method yields design solutions with different focuses. Besides, a higher production stability and lower carbon emission could be achieved with a proper economic cost.