전기·수소·담수 동시 생산을 위한원자력-재생 하이브리드 에너지 시스템 모델링 및 시뮬레이션
Modeling and Simulation of Nuclear Renewable Hybrid Energy Systems for Co-Production of Electricity, Hydrogen, and Clean Water
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Nuclear renewable hybrid energy systems (NR-HESs) for multi-purpose applications are gaining increasing attention from the international nuclear energy community as well as energy system designers and policymakers particularly in the context of deep decarbonization and net-zero targets. Over the past few decades, various modeling tools, such as mathematical formulations and Modelica, have been applied for analyzing the performance of NR-HESs; however, validating such results has been challenging due to the absence of a parallel simulation environment. In this study, Flownex a high-fidelity 1D system simulation tool was employed to enhance the verification and validation of NR-HES performance. A solar nuclear combined centralized heating system was modeled using Flownex, showing improved electricity production (about 34%) and mitigation of the duck curve. Furthermore, a thermal and electricity (T&E) coupling strategy is implemented to integrate electrolyzers and reverse osmosis units for hydrogen and clean water production. Results indicated that hydrogen output increased by 31.80%, whereas clean water production improved by only 7.72%. The difference in coupling effectiveness is attributed to the higher sensitivity of hydrogen production to thermal energy.
Abstract
Nuclear renewable hybrid energy systems (NR-HESs) for multi-purpose applications are gaining increasing attention from the international nuclear energy community as well as energy system designers and policymakers particularly in the context of deep decarbonization and net-zero targets. Over the past few decades, various modeling tools, such as mathematical formulations and Modelica, have been applied for analyzing the performance of NR-HESs; however, validating such results has been challenging due to the absence of a parallel simulation environment. In this study, Flownex a high-fidelity 1D system simulation tool was employed to enhance the verification and validation of NR-HES performance. A solar nuclear combined centralized heating system was modeled using Flownex, showing improved electricity production (about 34%) and mitigation of the duck curve. Furthermore, a thermal and electricity (T&E) coupling strategy is implemented to integrate electrolyzers and reverse osmosis units for hydrogen and clean water production. Results indicated that hydrogen output increased by 31.80%, whereas clean water production improved by only 7.72%. The difference in coupling effectiveness is attributed to the higher sensitivity of hydrogen production to thermal energy.