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首页> 外文会议>7th International renewable energy storage conference and exhibition >Commercial Concepts for Adiabatic Compressed Air Energy Storage
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Commercial Concepts for Adiabatic Compressed Air Energy Storage

机译：绝热压缩空气储能的商业概念

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Adiabatic compressed air energy storage (ACAES) systems offer the potential forrnefficient large-scale energy storage, almost approaching values typical for pumped hydro.rnIn an ACAES plant, the heat of compression is stored and utilized during the expansionrnof the air instead of firing natural gas like in commercial CAES. However, no ACAESrnplants have been commercialized due to challenges with respect to the cost and the heatrnstorage technology. In this study, conducted by EPRI, GE Global Research and GE Oil &rnGas, several concepts for ACAES plants are analyzed and their efficiency, complexityrnand technical risk compared. The components selected for the plants are available eitherrnoff-the-shelf or near-commercial within a short development time and without the highrncosts associated with developing a new generation of large custom-made compressorsrnand turbines. The most promising concept for near-term commercialization and low costsrnturns out to be a two-stage, low-temperature ACAES system. A regenerative (solid) and arnrecuperative (liquid) thermal storage system have been designed and analyzed for thisrnconcept, with the result that the liquid-recuperative system offers a much lower cost andrncomparable performance. Performance and cost targets for the concepts are 100 MWrnoutput per plant for 6 h with a round-trip efficiency above 60% and a capital cost of aboutrn$1000/kW. Selections of the turbomachinery for the compression and expansion trainrnfrom General Electric Oil & Gas are presented for several plant options along with theirrnexpansion power range (25…100 MW), round-trip efficiency (66%…70%) andrnpreliminary capital cost estimates (1100…1200 $/kW).
机译：绝热压缩空气能量存储（ACAES）系统提供了潜在的大规模能源存储效率，几乎接近抽水蓄能电站的典型值。在ACAES工厂中，压缩热在膨胀过程中被存储和利用，而不是燃烧天然气。就像在商业CAES中一样。然而，由于成本和储热技术方面的挑战，尚未将ACAESrnplants商业化。在由EPRI，GE全球研究和GE Oil＆Gas进行的这项研究中，分析了ACAES工厂的几个概念，并比较了它们的效率，复杂性和技术风险。为工厂选择的组件可在较短的开发时间内现货供应或几乎商用，而无需花费与开发新一代大型定制压缩机和涡轮机相关的高昂成本。短期商业化和低成本的最有希望的概念变成了两阶段的低温ACAES系统。为此，设计并分析了蓄热式（固态）蓄热系统和蓄热式（液态）蓄热系统，从而使蓄热式系统的成本大大降低，性能无与伦比。该概念的性能和成本目标是每台电厂100兆瓦时的功率输出6小时，往返效率超过60％，资本成本约1000美元/千瓦。介绍了通用电气石油和天然气公司用于压缩和膨胀列的涡轮机械的选择，以及几种设备的选择，以及它们的扩展功率范围（25…100 MW），往返效率（66％…70％）和初步资本成本估算（1100） …1200 $ / kW）。

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