Economic Feasibility of Thermal Energy Storage-Integrated Concentrating Solar Power Plants

Pub Date : 2023-02-08 DOI:10.3390/solar3010010

D. Jayathunga, J. Weliwita, H. Karunathilake, S. Witharana

{"title":"Economic Feasibility of Thermal Energy Storage-Integrated Concentrating Solar Power Plants","authors":"D. Jayathunga, J. Weliwita, H. Karunathilake, S. Witharana","doi":"10.3390/solar3010010","DOIUrl":null,"url":null,"abstract":"Concentrating solar power (CSP) is a high-potential renewable energy source that can leverage various thermal applications. CSP plant development has therefore become a global trend. However, the designing of a CSP plant for a given solar resource condition and financial situation is still a work in progress. This study aims to develop a mathematical model to analyze the levelized cost of electricity (LCOE) of Thermal Energy Storage (TES)-integrated CSP plants in such circumstances. The developed model presents an LCOE variation for 18 different CSP configurations with TES incorporated for Rankine, Brayton, and combined power generation cycles, under regular TES materials and nano-enhanced TES materials. The model then recommends the most economical CSP plant arrangement. Within the scope of this study, it was found that the best configuration for electricity generation is a solar power tower with nano-enhanced phase change materials as the latent heat thermal energy storage medium that runs on the combined cycle. This returns an LCOE of 7.63 ct/kWh with a 22.70% CSP plant efficiency. The most favorable option in 50 MW plants is the combined cycle with a regular TES medium, which has an LCOE of 7.72 ct/kWh with a 22.14% CSP plant efficiency.","PeriodicalId":0,"journal":{"name":"","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3390/solar3010010","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 2

Abstract

Concentrating solar power (CSP) is a high-potential renewable energy source that can leverage various thermal applications. CSP plant development has therefore become a global trend. However, the designing of a CSP plant for a given solar resource condition and financial situation is still a work in progress. This study aims to develop a mathematical model to analyze the levelized cost of electricity (LCOE) of Thermal Energy Storage (TES)-integrated CSP plants in such circumstances. The developed model presents an LCOE variation for 18 different CSP configurations with TES incorporated for Rankine, Brayton, and combined power generation cycles, under regular TES materials and nano-enhanced TES materials. The model then recommends the most economical CSP plant arrangement. Within the scope of this study, it was found that the best configuration for electricity generation is a solar power tower with nano-enhanced phase change materials as the latent heat thermal energy storage medium that runs on the combined cycle. This returns an LCOE of 7.63 ct/kWh with a 22.70% CSP plant efficiency. The most favorable option in 50 MW plants is the combined cycle with a regular TES medium, which has an LCOE of 7.72 ct/kWh with a 22.14% CSP plant efficiency.

查看原文

热能储存-集成聚光太阳能发电厂的经济可行性

聚光太阳能(CSP)是一种高潜力的可再生能源，可以利用各种热应用。因此，光热电站的发展已成为一种全球趋势。然而，在给定的太阳能资源条件和财政状况下，CSP电厂的设计仍在进行中。本研究旨在建立一个数学模型来分析在这种情况下热能储存(TES)集成CSP电厂的平准化电力成本(LCOE)。所开发的模型显示了18种不同CSP配置的LCOE变化，包括在常规TES材料和纳米增强TES材料下，在Rankine, Brayton和联合发电循环中加入TES。然后，该模型推荐了最经济的CSP电厂布置。在本研究范围内，发现最佳的发电配置是以纳米增强相变材料作为潜热蓄热介质，运行在联合循环上的太阳能发电塔。这样的LCOE为7.63 ct/kWh, CSP电厂效率为22.70%。在50兆瓦的电厂中，最有利的选择是与常规TES介质的联合循环，LCOE为7.72 ct/kWh, CSP电厂效率为22.14%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文