- 标题
- 摘要
- 关键词
- 实验方案
- 产品
-
Indoor and outdoor characterization of concentrating photovoltaic attached to multi-layered microchannel heat sink
摘要： Concentrating Photovoltaic technology is a promising option in power generation using the photovoltaics compared to the conventional ?at PV system. This study investigates the performance of a high concentrated photovoltaic single solar cell module attached to a multi-layered microchannel heat sink. The system has been tested the ?rst time experimentally both at indoor and outdoor conditions. The indoor characterization of the system investigated the e?ect of varying the number of the layers of the heat sink and the ?ow rate of the ?uid electrically and thermally. The experiments show that varying the number of the heat sink layers from 1-layer to 3-layers increase the maximum electrical generation by 10% and reduces the cell temperature by 3.15 °C under the same ?uid ?ow rate of 30 ml/min. The outdoor experiments show the maximum output electrical generation of the system of 4.60 W and the short circuit current of 1.96 A. The maximum solar cell temperature was maintained below 61 °C where the extracted heat of the system was 12.85 W which represents of 74.9% of the total generated power.
关键词： Heat sink,Concentrating photovoltaic,Thermal regulation,Multi-layered microchannel
更新于2025-09-23 15:19:57
-
Integrative passive and active cooling system using PCM and nanofluid for thermal regulation of concentrated photovoltaic solar cells
摘要： An integration of passive and active cooling systems for thermal regulation of concentrated photovoltaic (CPV) solar system has been developed and modeled. A heat storage battery of phase change material (PCM) is combined with a closed loop water cooling system in the developed design. A two dimensional model has been developed for the simulation of the CPV layers with the integrated cooling system. Results have been investigated to evaluate the thermal and electrical performances of the system components and the entire system. Further investigations have been conducted to study the effects of different arrangements of the PCM plates in the water tank on the system performances. Enhancing the system performance by using nanofluid as heat transfer fluid (HTF) was also evaluated. Results showed that the proposed system achieves 60% reduction in the CPV average temperature compared to the conventional direct PCM-PV and water-cooling individual systems. At 10 concentration ratio (CR) and 0.01 m/s HTF velocity, the cell temperature does not exceed 78 °C. Moreover, the PCM maximum temperature is kept below the degradation temperature limit. The effect of the PCM plates’ arrangements in the water tank on the system performance is negligible. Using nanofluid as HTF enhancer increases the CPV efficiency by 2.7% and reduces the PV maximum temperature and the PCM melting time by 4 °C and 12%, respectively.
关键词： Concentrated photovoltaic,Integrative passive-active cooling system,PCM,Thermal regulation,Nanofluid
更新于2025-09-12 10:27:22