Conference paper
A robust design of heat exchanger network for high temperature electrolysis systems
Continuum Modelling and Testing, Department of Energy Conversion and Storage, Technical University of Denmark1
Department of Energy Conversion and Storage, Technical University of Denmark2
Thermal Energy, Department of Civil and Mechanical Engineering, Technical University of Denmark3
Department of Civil and Mechanical Engineering, Technical University of Denmark4
North China Electric Power University5
The solid oxide electrolysis cell (SOEC) has been recognized as a promising technology for producing green hydrogen utilizing renewable energy. However, due to various degradation phenomena, the electrochemical performance of SOEC will deteriorate over time. This degradation leads to varying heat duty and inefficient operation.
Based on previously reported durability test data, we simulate and optimize a SOEC system with a robust heat exchanger network to address the degradation issue. Overall, a 45.9% redundancy heat exchanger area is designed into the system, which leads to a levelized cost of hydrogen (LCOH) of 4.23 $/kg H2.
The system efficiency is 77.4% initially but drops to 63.2% due to degradation. The vaporizer consumes the most energy in the heat exchanger network.
| Language: | English |
|---|---|
| Publisher: | Elsevier |
| Year: | 2022 |
| Pages: | 739-744 |
| Proceedings: | 14th International Symposium on Process Systems Engineering (PSE 2021+) |
| Series: | Computer Aided Chemical Engineering |
| ISBN: | 0323851592 , 0323853668 , 9780323851596 and 9780323853668 |
| ISSN: | 15707946 |
| Types: | Conference paper |
| DOI: | 10.1016/B978-0-323-85159-6.50123-8 |
| ORCIDs: | Liu, Hua , Clausen, Lasse Røngaard and Chen, Ming |
