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首页> 外文期刊>Sustainability >Review of Thermal Materials for CSP Plants and LCOE Evaluation for Performance Improvement using Chilean Strategic Minerals: Lithium Salts and Copper Foams
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Review of Thermal Materials for CSP Plants and LCOE Evaluation for Performance Improvement using Chilean Strategic Minerals: Lithium Salts and Copper Foams

机译：使用智利战略性矿物：锂盐和铜泡沫的CSP工厂热材料审查和LCOE评估以提高性能

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摘要

The improvement of solar thermal technologies in emerging economies like Chile is particularly attractive because the country is endowed with one of the most consistently high solar potentials, lithium and copper reserves. In recent years, growing interests for lithium based salts and copper foams in application of thermal technologies could change the landscape of Chile transforming its lithium reserves and copper availability into competitive energy produced in the region. This study reviews the technical advantages of using lithium based salts—applied as heat storage media and heat transfer fluid—and copper foam/Phase Change Materials (PCM) alternatives—applied as heat storage media—within tower and parabolic trough Concentrated Solar Power (CSP) plants, and presents a first systematic evaluation of the costs of these alternatives based on real plant data. The methodology applied is based on material data base compilation of price and technical properties, selection of CSP plant and estimation of amount of required material, and analysis of Levelized Cost of Electricity (LCOE). Results confirm that some lithium based salts are effective in reducing the amount of required material and costs for the Thermal Energy Storage (TES) systems for both plant cases, with savings of up to 68% and 4.14% in tons of salts and LCOE, respectively. Copper foam/PCM composites significantly increase thermal conductivity, decreasing the volume of the TES system, but costs of implementation are still higher than traditional options.
机译：在智利这样的新兴经济体中，太阳能热技术的改进特别具有吸引力，因为该国拥有最稳定的太阳能潜力之一，即锂和铜储量。近年来，人们越来越热衷于将锂盐和泡沫铜用于热技术的应用，从而改变智利的面貌，将其锂储量和铜的可利用性转化为该地区产生的竞争性能源。这项研究回顾了在塔式和抛物槽式聚光太阳能发电系统（CSP）中使用锂盐作为储热介质和传热流体的技术优势以及泡沫铜/相变材料（PCM）替代作为储热介质的技术优势。 ）工厂，并根据实际工厂数据对这些替代方案的成本进行了首次系统评估。所采用的方法基于价格和技术特性的材料数据库汇编，CSP工厂的选择和所需材料数量的估计，以及电费平均成本（LCOE）的分析。结果证实，某些锂基盐可有效减少两种工厂案例的热能存储（TES）系统所需的材料量和成本，分别节省多达68％和4.14％的吨盐和LCOE。 。泡沫铜/ PCM复合材料显着提高了导热性，减小了TES系统的体积，但实施成本仍然高于传统选择。

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