Performance analysis of a photovoltaic/thermal system with lunar regolith-based thermal storage for the lunar base  

作　　者：SUN WenGan ZHAO Bin PEI Yu SHI LingFeng HU MaoBin LI MuJun REN Xiao PEI Gang 

机构地区：[1]Deep Space Exploration Laboratory,Hefei 230026,China [2]Department of Thermal Science and Energy Engineering,University of Science and Technology of China,Hefei 230026,China [3]Department of Mechanical and Aerospace Engineering,University of California San Diego,La Jolla,CA 92093,USA [4]Department of Precision Machinery and Precision Instrumentation,University of Science and Technology of China,Hefei 230026,China [5]College of New Energy,China University of Petroleum(East China),Qingdao 266000,China

出　　处：《Science China(Technological Sciences)》2024年第4期1113-1123,共11页中国科学（技术科学英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.52106276 and 52130601);Fundamental Research Funds for the Central Universities(Grant No.WK2090000038);the Joint research center for multi-energy complementation and conversion of USTC。

摘　　要：Powering a moon base,especially keeping it warm during the long lunar night,is a big challenge.This paper introduces a photovoltaic/thermal(PV/T)system incorporating regolith thermal storage to solve the challenge of power and heat provision for the lunar base simultaneously.The vacuum of space around the moon helps this system by reducing heat loss.During the moon's daytime,the system not only generates electricity but also captures heat.This stored heat in the regolith is then used at night,reducing the amount of equipment we need to send from Earth.The spectrally selective PV/T panels are designed to absorb a wide range of sunlight(0.3–2.5μm)while minimizing heat loss in the infrared range(3–30μm).Simulation results of the hybrid solar energy system indicate the average value of the overall efficiency is 45.9%,which relatively elevates 56.1%compared to the PV system.The launch mass of the proposed PV/T system is only 8.4%of a traditional photovoltaic-lithium battery system with the same amount of energy storage.And the total specific energy of the proposed system is 7.3 kWh kg^(-1),while that of the photovoltaic-lithium battery system is about 0.3 kWh kg^(-1).In summary,this study proposes an alternative combined heat and electricity supply system for the lunar base,which can greatly reduce the launch mass and free up load for other scientific research equipment.

关 键 词：in-situ resource utilization(IRSU) regolith thermal storage photovoltaic/thermal(PV/T) spectral selectivity 

分 类 号：V476.3[航空宇航科学与技术—飞行器设计] P184[天文地球—天文学] TM615[电气工程—电力系统及自动化]