Process dynamics in a hydrogen-based energy storage system
Process dynamics in a hydrogen-based energy storage system
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DOI：
10.1016/j.est.2021.103416
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发表时间：
2021-12
影响因子：
9.4
通讯作者：
J. Glas;Tariq Abou Jarboua;B. Nikolov;D. Karamanev
中科院分区：
文献类型：
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作者：
J. Glas;Tariq Abou Jarboua;B. Nikolov;D. Karamanev
生物发电机是最近发明的一种技术，用于将氢生物转化为电。它的主要应用是在氢基储能系统中的氢再充电，以平滑风能和太阳能发电的变化。因此，BioGenerator的运行是高度动态的。生物发生器的核心是一个生物反应器，主要微生物嗜铁麻风菌将Fe2+转化为Fe3+。能量储存过程的动态影响生物反应器的时间特性。在可再生能源发电高峰期间，生物发电机保持闲置，生物反应器中剩余的Fe 2+不断被生物消耗。同样，在发电的低谷期间，Fe 3+被电化学消耗，并且Fe 2+积累。研究了周期性中断对铁氧化生物反应器运行的影响。我们的研究结果表明，生物发电机的空转时间少于半天对恢复到初始性能没有负面影响，而较长的空转时间会导致生物反应器性能的短暂下降。在独立的生物反应器以及在用于氢气再充电的完整BioGenerator系统中并入的生物反应器中观察到类似的动力学。此外，闭环生物发生器系统的操作显示了对稳态生物氧化速率的滞后效应，可通过短暂中断操作来校正。
The BioGenerator is a technology that was recently invented and is used for the biological conversion of hydrogen to electricity. Its main application is in the re-electrification of hydrogen in hydrogen-based energy storage systems for the smoothing of the variability in wind and solar power generation. Therefore, BioGenerator operation is highly dynamic. The core of the BioGenerator is a bioreactor where principal microorganismsLeprospirillun ferriphilumoxidize Fe2+to Fe3+. The dynamics of the process of energy storage affects the temporal characteristics of the bioreactor. The BioGenerator remains idle during the peaks of power generation of renewable power where Fe2+remaining in the bioreactor is continuously consumed biologically. Likewise during the valleys in power generation Fe3+is consumed electrochemically and Fe2+accumulates. The effect of periodic interruption on the operation of the iron-oxidizing bioreactor was studied in this work. Our results show that idling of the BioGenerator for less than half a day has no negative effect on returning to the initial performance, while longer idling periods result in a small temporary reduction in bioreactor performance. Similar dynamics were observed in both stand-alone bioreactor as well as in a bioreactor incorporated in a complete BioGenerator system for hydrogen re-electrification. Additionally, operation of the closed loop BioGenerator system revealed hysteresis effects on the steady state bio-oxidation rate correctable with brief interruption of operation.