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首页> 外文期刊>International Journal of Heat and Mass Transfer >Analysis and optimization of a latent thermal energy storage system with embedded heat pipes
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Analysis and optimization of a latent thermal energy storage system with embedded heat pipes

机译：嵌入式热管潜热储能系统的分析与优化

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摘要

Latent thermal energy storage system (LTES) is an integral part of concentrating solar power (CSP) plants for storing sun's energy during its intermittent diurnal availability in the form of latent heat of a phase change material (PCM). The advantages of an LTES include its isothermal operation and high energy storage density, while the low thermal conductivity of the PCM used in LTES poses a significant disadvantage due to the reduction in the rate at which the PCM can be melted (charging) or solidified (discharging). The present study considers an approach to reducing the thermal resistance of LTES through embedding heat pipes to augment the energy transfer from the heat transfer fluid (HTF) to the PCM. Using a thermal resistance network model of a shell and tube LTES with embedded heat pipes, detailed parametric studies are carried out to assess the influence of the heat pipe and the LTES geometric and operational parameters on the performance of the system during charging and discharging. The physical model is coupled with a numerical optimization method to identify the design and operating parameters of the heat pipe embedded LTES system that maximizes enerev transferred, enerev transfer rate and effectiveness.
机译：潜热能存储系统（LTES）是集中式太阳能发电厂（CSP）的组成部分，用于以相变材料（PCM）的潜热形式在其间歇性日间可用性期间存储太阳的能量。 LTES的优点包括其等温运行和高能量存储密度，而LTES中使用的PCM的低热导率由于降低了PCM熔化（装料）或固化（放电）。本研究考虑了一种通过嵌入热管来降低LTES热阻的方法，以增强从传热流体（HTF）到PCM的能量传递。使用带有嵌入式热管的管壳式LTES的热阻网络模型，进行了详细的参数研究，以评估热管以及LTES几何和运行参数在充电和放电期间对系统性能的影响。物理模型与数值优化方法相结合，以识别热能嵌入式LTES系统的设计和运行参数，以最大化能传递，能传递速率和效率。

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