4E 通过散热器-相变材料系统冷却聚光太阳能电池的实验研究

IF 5.1 3区工程技术 Q2 ENERGY & FUELS Thermal Science and Engineering Progress Pub Date : 2024-08-13 DOI:10.1016/j.tsep.2024.102794

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引用次数: 0

摘要

本文研究了利用散热器（HD）和相变材料（PCM）组成的新型复合热调节系统对低聚光太阳能电池（SC）进行冷却的实验。报告了不同 HD 厚度（h）下 1.5 和 2 的面积比（AR；HD 面积/SC 面积）对系统性能的影响。报告还对用于 SC 热调节的不同冷却系统进行了能量、放能、经济和环境经济评估。结果表明，随着 HD 厚度和 AR 的增加，SC 温度的降低幅度也在增加。与参考 SC 相比，SC-PCM/HD（AR=2/h = 3）的最大降温幅度为 24 °C，而 SC-PCM 和 SC-HD 分别为 9.1 °C和 21.8 °C。此外，与参考 SC 相比，SC-PCM/HD 冷却系统的平均电气效率和功率输出分别最大提高了 11.88 % 和 12 %。随着面积比的增加和 HD 厚度的减小，PCM 的热能储存率和光伏系统效率也随之增加。将（AR=2/h = 1）的 HD 与 PCM 结合使用，可获得最有利的 PCM 热性能，与仅使用 PCM 相比，其热能储存、能量储存率和整个热系统效率分别提高了 9.5%、40% 和 20.36%。此外，PCM/HD 冷却系统比仅使用 PCM 或 HD 以及参考 SC 更为经济，与参考 SC 相比，最大可节省 41.7% 的成本。SC-PCM/HD 冷却系统是最环保的选择，其净二氧化碳减排量和ψCO2 分别为 146.2 千克和 5.84 美元，而 SC-PCM 分别为 143.7 千克和 5.74 美元。

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4E experimental investigation of concentrated solar cell cooling via system of heat dissipator-phase change material

Low-concentrator solar cell (SC) experimentally cooled using a new composite thermal regulation system of heat dissipator (HD) and phase change material (PCM) is investigated. The impact of area ratio (AR; HD area/SC area) of 1.5 and 2 at different HD thicknesses (h) on the system performance is reported. An energy, exergy, economic, and enviroeconomic assessments for the different cooling systems used for the SC thermal regulation are presented. The results show that the SC temperature reduction increases with increasing the HD thickness and AR. Compared with reference SC, SC-PCM/HD (AR=2/h = 3) achieves a maximum temperature reduction of 24 °C compared with 9.1 °C and 21.8 °C for SC-PCM and SC-HD, respectively. Moreover, SC-PCM/HD cooling system achieves the maximum enhancement in the average electrical efficiency and power output of 11.88 % and 12 %, respectively, compared with reference SC. The PCM thermal energy storage rate and PV system efficiency increase with increasing area ratio and decreasing the HD thickness. Using HD of (AR=2/h = 1) in conjunction with PCM yields the most favorable PCM thermal performance where it enhances the thermal energy storage, rate of energy storage, and overall thermal system efficiency by 9.5 %, 40 %, and 20.36 %, respectively, compared with using PCM only. Moreover, the PCM/HD cooling system is more economical than using PCM or HD only, and reference SC, with a maximum cost saving of 41.7 % compared with reference SC. The SC-PCM/HD cooling system is the most eco-friendly option with net CO₂ mitigation and $ψ_{{CO}_{2}}$ of 146.2 kg and 5.84$, respectively compared with 143.7 kg and 5.74$, respectively for SC-PCM.

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来源期刊

Thermal Science and Engineering Progress Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

7.20

自引率

10.40%

发文量

327

审稿时长

41 days

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