Modeling and investigating the detailed characteristics of solar lighting/heating system based on spectrum split of nanofluids

作     者：Chao Shen Guoquan Lv Kaijie Zheng Changyun Ruan Chunxiao Zhang Yu Dong 

作者机构：School of ArchitectureHarbin Institute of TechnologyKey Laboratory of Cold Region Urban and Rural Human Settlement Environment Science and TechnologyMinistry of Industry and Information TechnologyHarbin 150090China 

出 版 物：《能源与人工环境(英文)》 (Energy and Built Environment)

年 卷 期：2022年第3卷第1期

页      面：30-39页

核心收录：

学科分类：02[经济学] 0202[经济学-应用经济学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 1201[管理学-管理科学与工程(可授管理学、工学学位)] 0807[工学-动力工程及工程热物理] 0813[工学-建筑学] 0814[工学-土木工程] 0823[工学-交通运输工程] 

基　　金：The authors gratefully acknowledge the funding support from the State Key Laboratory of Subtropical Building Science(Project#:2020ZB15). 

主　　题：Solar lighting Solar energy Full spectrum Nanofluids 

摘      要：Solar lighting technologies can lead sunlight into indoor actively,which has been proved that has great potential to reduce electric lighting consumption and create a healthy visual environment.In this paper,a mathematics model was developed to explore performance characteristics and economic applicability of solar lighting/heating system that combine ordinary solar lighting system with nanofluids to spectroscopically utilize sunlight.The results show that the luminous efficiency of output visible light can reach at 242 lm/W,which is 1.62-2.42 times higher than that of current LED light.Moreover,it can be found that the energy-saving capacity of this system is remarkable when used in most areas of China.As for Harbin,its annual total solar radiation ranges 4190 MJ/m^(2)to 5020 MJ/m^(2),the system’s annual output energy(per square meter of collection area)is 188.15 kW·h for daylighting and 248.2 kW•h for domestic hot water.Besides,the integrated using of infrared radiation can improve the economy of solar lighting technologies by calculating the comprehensive price of unit output energy.