Photovoltaic power generation makes full use of the advantages of solar energy

which is green

clean

widely distributed

and abundantly available. However

the efficiency of photovoltaic(PV) modules often decreases as the operating temperature increases

severely affecting system performance. To address this issue

this paper experimentally investigates the cooling effect of phase change materials(PCM) with Y-shaped fins on PV cells. The study focuses on analyzing the effect of structural parameters such as the branching angle

position length

and length ratio of the Y-shaped fins on the system's thermoelectric performance. The results show that

comparing with the system without fins

the system with Y-shaped fins has an average increase of 0.37% in photoelectric conversion efficiency

and the average melting rate of paraffin increased by 21.52%. The position length has the greatest impact on the melting rate. When the branching angle is 60°

the length ratio is 2

and the position length is 0

the Y-shaped fin can achieve the best temperature uniformity inside the cavity. By coupling Y-shaped fins with PCMs for PV cell cooling

this research aims to address practical application challenges such as uneven melting

internal temperature stratification

excessive local temperatures

and hotspots caused by the poor thermal conductivity of PCMs.