Abstract In this study, nucleate boiling heat transfer (NBHT) based self-cooling thermal management system is designed and thermodynamically analyzed for high concentrating photovoltaics (CPV). The overall self-cooling system, consisting of two rows of CPV i.e. CPV 1 and CPV 2, iscoupled with the absorption cooling (AbC) system. Thermal energy from CPV 1 is supplied to AbC system to produce cooling, which is then used to reduce the temperature of CPV 2. Both CPV systems work simultaneously under the same solar energy conditions, hence, the demand and supply of energy are continuously in phase. Under the designed conditions, CPV 1, with an installed capacity of 66.4 kW, an operating temperature of 375.3 K and electrical efficiency of 35.5%, has the ability to cool down about 50.6 kW of CPV 2 system with an operating temperature of 335.8 K and 37.5% of electrical efficiency. A parametric study is performed to analyze the performance of the overall system at various working conditions and installed capacities. Furthermore, the designed system is analyzed for two different types of multi-junction solar cells and three different types of coolants: water, ethanol, and n-pentane. Due to higher latent heat, water has been proven to perform better working fluid with higher ability of concentration ratio. The optimum NBHT operating temperatures for CPV1 and CPV2 were found to be about 353 K and 349 K with maximum overall system efficiency of 36.64%.

中文翻译：

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使用核沸腾传热的自冷聚光光伏系统的性能评估

摘要 在这项研究中，设计了基于核沸腾传热（NBHT）的自冷热管理系统，并针对高聚光光伏（CPV）进行了热力学分析。由两排 CPV（即 CPV 1 和 CPV 2）组成的整体自冷却系统与吸收式冷却 (AbC) 系统耦合。来自 CPV 1 的热能提供给 AbC 系统以产生冷却，然后用于降低 CPV 2 的温度。 两个 CPV 系统在相同的太阳能条件下同时工作，因此能量的需求和供应是连续同相的. 在设计工况下，CPV 1装机容量66.4 kW，运行温度375.3 K，电效率35.5%，能够对运行温度335.8 K的CPV 2系统约50.6 kW进行冷却， 37. 5% 的电效率。进行参数研究以分析整个系统在各种工作条件和装机容量下的性能。此外，设计的系统针对两种不同类型的多结太阳能电池和三种不同类型的冷却剂进行了分析：水、乙醇和正戊烷。由于更高的潜热，水已被证明是具有更高浓缩比能力的更好的工作流体。发现 CPV1 和 CPV2 的最佳 NBHT 工作温度约为 353 K 和 349 K，最大整体系统效率为 36.64%。设计的系统针对两种不同类型的多结太阳能电池和三种不同类型的冷却剂进行了分析：水、乙醇和正戊烷。由于更高的潜热，水已被证明是具有更高浓缩比能力的更好的工作流体。发现 CPV1 和 CPV2 的最佳 NBHT 工作温度约为 353 K 和 349 K，最大整体系统效率为 36.64%。设计的系统针对两种不同类型的多结太阳能电池和三种不同类型的冷却剂进行了分析：水、乙醇和正戊烷。由于更高的潜热，水已被证明是具有更高浓缩比能力的更好的工作流体。发现 CPV1 和 CPV2 的最佳 NBHT 工作温度约为 353 K 和 349 K，最大整体系统效率为 36.64%。