TY - GEN
T1 - Preliminary study on a new cryogenic energy storage system based on natural gas liquefaction
AU - Liu, Yuman
AU - Tan, Hongbo
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/6
Y1 - 2019/6
N2 - Aiming at storing the surplus renewable energy resources, a new cryogenic energy storage system (CES) based on natural gas liquefaction is proposed and investigated. The Linde Cycle is adopted in the energy storage section while the Rankine Cycle is employed in the energy recovery section. Based on processsimulation by Aspen HYSYS, the thermodynamic analysis of the CES system under a set of working conditions is carried out. The results show that the energy recovery efficiency of this configuration reaches up to 58.1%, the exergy efficiency of the energy storage section is 81.5% and that of the electricity recovery section is 81.6%. The exergy losses are mainly caused by the irreversibility of compressors, turbines and throttling valve. It is suggested that replacing the throttling valve by expansion devices with higher efficiency, using mixed refrigerants in cold energy recovery section and properly utilizing the heat rejected in hot recovery section may be effective means to improve the system thermal performance.
AB - Aiming at storing the surplus renewable energy resources, a new cryogenic energy storage system (CES) based on natural gas liquefaction is proposed and investigated. The Linde Cycle is adopted in the energy storage section while the Rankine Cycle is employed in the energy recovery section. Based on processsimulation by Aspen HYSYS, the thermodynamic analysis of the CES system under a set of working conditions is carried out. The results show that the energy recovery efficiency of this configuration reaches up to 58.1%, the exergy efficiency of the energy storage section is 81.5% and that of the electricity recovery section is 81.6%. The exergy losses are mainly caused by the irreversibility of compressors, turbines and throttling valve. It is suggested that replacing the throttling valve by expansion devices with higher efficiency, using mixed refrigerants in cold energy recovery section and properly utilizing the heat rejected in hot recovery section may be effective means to improve the system thermal performance.
KW - Cryogenic energy storage
KW - Exergy analysis
KW - Natural gas liquefaction
UR - https://www.scopus.com/pages/publications/85073058365
U2 - 10.1109/ICIEA.2019.8833884
DO - 10.1109/ICIEA.2019.8833884
M3 - 会议稿件
AN - SCOPUS:85073058365
T3 - Proceedings of the 14th IEEE Conference on Industrial Electronics and Applications, ICIEA 2019
SP - 483
EP - 487
BT - Proceedings of the 14th IEEE Conference on Industrial Electronics and Applications, ICIEA 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 14th IEEE Conference on Industrial Electronics and Applications, ICIEA 2019
Y2 - 19 June 2019 through 21 June 2019
ER -
