Electricity Arbitration and Sector Coupling with an Experimentally Validated Reversible Solid Oxide Cell Reactor System Connected to the Natural Gas Grid,Energy Technology

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Electricity Arbitration and Sector Coupling with an Experimentally Validated Reversible Solid Oxide Cell Reactor System Connected to the Natural Gas Grid
Energy Technology ( IF 3.6 ) Pub Date : 2020-01-14 , DOI: 10.1002/ente.201900618
Srikanth Santhanam ₁ , Marc P. Heddrich ₁ , Kasper Andreas Friedrich _{1,

2}

Affiliation

Chemical energy storage offers an attractive solution for the arbitration of intermittent renewable electricity due to its higher energy storage capacity and storage duration. Reversible solid oxide cell (rSOC) reactor systems can efficiently operate in electrolysis operation to convert electrical energy to chemical energy or in fuel cell mode to convert chemical energy back to electrical energy. Natural gas is widely used in the chemical industry as a source of energy and hydrogen. Hence, storing electrical energy in the form of synthetic natural gas can couple electricity arbitration with chemical process industries. A methane‐based rSOC system concept for the purpose of energy storage and sector coupling is investigated. A process system analysis is performed based on an experimental study of a commercially available rSOC reactor. A validated rSOC reactor model is used to identify optimal system operating conditions. The proposed system concept achieves a chemical to electrical energy conversion efficiency of 57% and electrical to chemical energy conversion efficiency of 93% based on first law and lower heating value. A net electrical storage efficiency of 53% can be achieved.

中文翻译：

与天然气网格连接的经过实验验证的可逆固体氧化物电池反应器系统的电仲裁和扇区耦合

化学能量存储由于具有更高的能量存储容量和存储持续时间，因此为间歇性可再生电力仲裁提供了一种有吸引力的解决方案。可逆固体氧化物电池（rSOC）反应器系统可以在电解操作中有效地运行以将电能转换为化学能，或者在燃料电池模式下可以将化学能转换回电能。天然气在化学工业中被广泛用作能源和氢气。因此，以合成天然气的形式存储电能可以将电仲裁与化学过程工业耦合。研究了基于甲烷的rSOC系统概念，用于能量存储和扇区耦合。基于对市售的rSOC反应器的实验研究，进行处理系统分析。经过验证的rSOC反应堆模型用于确定最佳系统运行条件。基于第一定律和较低的发热量，所提出的系统概念可实现57％的化学至电能转换效率和93％的电能至化学转换效率。可以实现53％的净电存储效率。

更新日期：2020-01-14

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