TY - JOUR
T1 - Thermodynamic modeling and optimization of hybrid linear concentrating photovoltaic and mechanically pumped two-phase loop system
AU - Li, Guanru
AU - Hua, Qingsong
AU - Sun, Li
AU - Khosravi, Ali
AU - Jose Garcia Pabon, Juan
N1 - Funding Information:
This paper is the result of a research project funded by the National Natural Science Foundation of China under Grant 52276003 , Research and development project in key areas of Guangdong Province 2019B090909002 and the Natural Science Foundation of Jiangsu Province, China under Grant BK20211563.
Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2023/3/1
Y1 - 2023/3/1
N2 - Linear concentrating photovoltaic (LCPV) is a promising technology to increase the power density of the solar power generation system. However, the efficiency of LCPV is highly undermined due to inefficient thermal management. Active cooling-based thermal management via a mechanically pumped two-phase loop (MPTL) system can facilitate the heat transfer across LCPV. However, efficient thermal management and waste heat utilization are still challenges due to high heat flux, complex two-phase dynamics, strong internal couplings and dynamic external environment. To simultaneously address these crucial parameters, this paper presents a mathematical model for the hybrid LCPV-MPTL system, including two-phase flow and other auxiliary components. An iterative solution algorithm is proposed to derive the steady-state values under different conditions. Simulations under four operating conditions have been performed based on the developed model, indicating the effects of each parameter. A multi-parameter optimization problem with several constraints is formulated by taking the changing solar irradiation intensity and other environmental factors into account, maximizing the net output of electrical energy while satisfying the safety and operational requirements. Finally, exergy analysis is carried out, showing that the hybridization of MPTL with LCPV can improve its overall exergy efficiency by 6.9%, resulting in high performance PV with greatly controlled cell temperature. In all, the scientifically viable thermal management solution and the underlying design guidelines can be inferred for industrial applications.
AB - Linear concentrating photovoltaic (LCPV) is a promising technology to increase the power density of the solar power generation system. However, the efficiency of LCPV is highly undermined due to inefficient thermal management. Active cooling-based thermal management via a mechanically pumped two-phase loop (MPTL) system can facilitate the heat transfer across LCPV. However, efficient thermal management and waste heat utilization are still challenges due to high heat flux, complex two-phase dynamics, strong internal couplings and dynamic external environment. To simultaneously address these crucial parameters, this paper presents a mathematical model for the hybrid LCPV-MPTL system, including two-phase flow and other auxiliary components. An iterative solution algorithm is proposed to derive the steady-state values under different conditions. Simulations under four operating conditions have been performed based on the developed model, indicating the effects of each parameter. A multi-parameter optimization problem with several constraints is formulated by taking the changing solar irradiation intensity and other environmental factors into account, maximizing the net output of electrical energy while satisfying the safety and operational requirements. Finally, exergy analysis is carried out, showing that the hybridization of MPTL with LCPV can improve its overall exergy efficiency by 6.9%, resulting in high performance PV with greatly controlled cell temperature. In all, the scientifically viable thermal management solution and the underlying design guidelines can be inferred for industrial applications.
KW - Energy transition
KW - Linear concentrating photovoltaic
KW - Mechanically pumped two-phase loop
KW - Solar energy
KW - Thermodynamic optimization
UR - http://www.scopus.com/inward/record.url?scp=85145218073&partnerID=8YFLogxK
U2 - 10.1016/j.apenergy.2022.120547
DO - 10.1016/j.apenergy.2022.120547
M3 - Article
AN - SCOPUS:85145218073
SN - 0306-2619
VL - 333
JO - Applied Energy
JF - Applied Energy
M1 - 120547
ER -