Having the wide application of metal oxides in energy technologies,in recent years,many researchers tried to increase the performance of the PV/T system by using metal oxide-based nanofluids(NFs)as coolants or optical filters or both at the same time.This paper summarizes recent research activities on various metal oxides(Al2O3,TiO2,SiO2,Fe3O4,CuO,ZnO,MgO)-based NFs performance in the PV/T system regarding different significant parameters,e.g.,thermal conductivity,volume fraction,mass flowrate,electrical,thermal and overall efficiency,etc.By conducting a comparative study among the metal oxide-based NFs,Al2O3/SiO2-water NFs are mostly used to achieve maximum performance.The Al2O3-water NF has a prominent heat transfer feature with a maximum electrical efficiency of 17％,and a maximum temperature reduction of PV module of up to 36.9℃can be achieved by using the Al2O3-water NF as a coolant.Additionally,studies suggest that the PV cell's efficiency of up to 30％can be enhanced by using a solar tracking system.Besides,TiO2-water NFs have been proved to have the highest thermal efficiency of 86％in the PV/T system,but TiO2 nanoparticles could be hazardous for human health.As a spectral filter,SiO2-water NF at a size of 5 nm and a volume fraction of 2％seems to be very favorable for PV/T systems.Studies show that the combined use of NFs as coolants and spectral filters in the PV/T system could provide a higher overall efficiency at a cheaper rate.Finally,the opportunities and challenges of using NFs in PV/T systems are also discussed.

Shahriar AHMED;KH.Nazmul AHSHAN;Nur Alam MONDAL;Shorab HOSSAIN

Department of Mechanical Engineering,Hajee Mohammad Danesh Science and Technology University,Dinajpur-5200,Bangladesh;Department of Engineering,BGMEA University of Fashion and Technology,Dhaka-1230,Bangladesh

能源前沿

[1]Shahriar AHMED;KH.Nazmul AHSHAN;Nur Alam MONDAL;Shorab HOSSAIN-.Application of metal oxides-based nanofluids in PV/T systems:a review)[J].能源前沿,2022(03):397-428

coolants

Application,metal,oxides,nanofluids,PV,systems,review,Having,wide,application,energy,technologies,recent,years,many,researchers,tried,increase,performance,by,using,NFs,optical,filters,both,same,This,paper,summarizes,activities,various,Al2O3,TiO2,SiO2,Fe3O4,CuO,ZnO,MgO,regarding,different,significant,parameters,thermal,conductivity,volume,fraction,mass,flowrate,electrical,overall,efficiency,etc,By,conducting,comparative,study,among,water,are,mostly,used,maximum,has,prominent,heat,transfer,feature,temperature,reduction,module,up,achieved,Additionally,studies,suggest,that,cell,enhanced,solar,tracking,Besides,have,been,proved,highest,but,nanoparticles,could,hazardous,human,health,spectral,size,seems,very,favorable,Studies,show,combined,provide,higher,cheaper,Finally,opportunities,challenges,also,discussed

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