Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5145056 | International Journal of Hydrogen Energy | 2017 | 11 Pages |
Abstract
The dependency of renewable energy systems on environmental influences such as sun or wind availability is one of the greatest challenges in the energy transition. For this purpose, it is important to develop electro chemical storage systems for long-term storing of renewable electricity in the form of hydrogen or methane. In the presented work, an electrolysis system with solid-oxide electrolyser stacks is designed. A solar thermal receiver is used to produce the steam supplied to the electrolyser stacks. On the other hand, a thermal energy storage, using a phase change material, is used for the extension of the operational hours during the night time. The system is optimized to minimize the levelized costs of hydrogen and compared to a system without a thermal energy storage. Finally, the cost sensitivity for the four main components of the cost structure is evaluated and discussed.
Keywords
TESLCOHTMYOPEXLHTESHHVTTDHTFCSPSOECPCMASREPCCAPEXHTxHeat transfer fluidPower-to-gasdirect normal irradianceDirect steam generationlatent heat thermal energy storageThermal energy storageDNITypical meteorological yearSolid oxide electrolysis cellConcentrating solar powerHeat exchangerArea specific resistanceIAMPhase change materialSolar fieldcapital expendituresOperational expendituresIncidence angle modifierHigher heating value
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
M. Seitz, H. von Storch, A. Nechache, D. Bauer,