TY - GEN
T1 - Cooperative Optimization of System Parameters and Heat Exchanger Structure for Geothermal Organic Rankine Cycle
AU - Li, Jian
AU - Yang, Zhen
AU - Duan, Yuanyuan
AU - Yu, Zitao
N1 - Publisher Copyright:
© 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
PY - 2022
Y1 - 2022
N2 - Organic Rankine cycle (ORC) is a promising geothermal power generation technology. While, the high purchased cost of heat exchangers is a key obstacle for its promotion. To further enhance the thermo-economic performance and competitive advantage of geothermal ORC systems, the cooperative optimization of system parameters and heat exchanger structure is proposed in this work. The common shell-and-tube heat exchanger is focused. The influences of the inner diameter and wall thickness of heat exchange tube on the optimum design and thermo-economic performance of ORC system are analyzed. The performance improvement effects of cooperative optimization way are evaluated. The results show that the inner diameter and wall thickness have non-negligible influences on the optimum design and thermo-economic performance of geothermal ORC system. A larger thermo-economic benefit can be obtained by optimizing the inner diameter and wall thickness at low geothermal temperature and large geothermal flow rate. While, the thermo-economic benefits only differ slightly for various organic fluids. The cooperative optimization is confirmed as an effective way to substantially enhance the thermo-economic performance of geothermal ORC system, and the minimum specific investment cost can decrease by 12.5–15.6% compared with the traditional system-level optimization.
AB - Organic Rankine cycle (ORC) is a promising geothermal power generation technology. While, the high purchased cost of heat exchangers is a key obstacle for its promotion. To further enhance the thermo-economic performance and competitive advantage of geothermal ORC systems, the cooperative optimization of system parameters and heat exchanger structure is proposed in this work. The common shell-and-tube heat exchanger is focused. The influences of the inner diameter and wall thickness of heat exchange tube on the optimum design and thermo-economic performance of ORC system are analyzed. The performance improvement effects of cooperative optimization way are evaluated. The results show that the inner diameter and wall thickness have non-negligible influences on the optimum design and thermo-economic performance of geothermal ORC system. A larger thermo-economic benefit can be obtained by optimizing the inner diameter and wall thickness at low geothermal temperature and large geothermal flow rate. While, the thermo-economic benefits only differ slightly for various organic fluids. The cooperative optimization is confirmed as an effective way to substantially enhance the thermo-economic performance of geothermal ORC system, and the minimum specific investment cost can decrease by 12.5–15.6% compared with the traditional system-level optimization.
KW - Cooperative optimization
KW - Geothermal energy
KW - Heat exchanger
KW - Organic Rankine cycle (ORC)
KW - Thermo-economic performance
UR - http://www.scopus.com/inward/record.url?scp=85138002306&partnerID=8YFLogxK
U2 - 10.1007/978-981-19-4360-7_8
DO - 10.1007/978-981-19-4360-7_8
M3 - Conference contribution
AN - SCOPUS:85138002306
SN - 9789811943591
T3 - Lecture Notes in Electrical Engineering
SP - 85
EP - 97
BT - Renewable Energy Systems in Smart Grid - Select Proceedings of International Conference on Renewable and Clean Energy, ICRCE 2022
A2 - Kolhe, Mohan Lal
PB - Springer Science and Business Media Deutschland GmbH
T2 - 12th International Conference on Renewable and Clean Energy, ICRCE 2022
Y2 - 25 February 2022 through 27 February 2022
ER -