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A Thermo-Economic Study of Storage Integration in Hybrid Solar Gas-Turbine Power Plants
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Heat and Power Technology. (Concentrated Solar Power)ORCID iD: 0000-0002-3458-2112
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Heat and Power Technology. (Concentrated Solar Power)
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Heat and Power Technology. (Concentrated Solar Power)
2015 (English)In: Journal of solar energy engineering, ISSN 0199-6231, E-ISSN 1528-8986, Vol. 137, no 1Article in journal (Refereed) Published
Abstract [en]

A thermo-economic simulation model of a hybrid solar gas-turbine (HSGT) power plant with an integrated storage unit has been developed, allowing determination of the thermodynamic and economic performance. Designs were based around two representative industrial gas-turbines: a high efficiency machine and a low temperature machine. In order to examine the trade-offs that must be made, multi-objective thermo-economic analysis was performed, with two conflicting objectives: minimum investment costs and minimum specific carbon dioxide (CO2) emissions. It was shown that with the integration of storage, annual solar shares above 85% can be achieved by HSGT systems. The levelized electricity cost (LEC) for the gas-turbine system as this level of solar integration was similar to that of parabolic trough plants, allowing them to compete directly in the solar power market. At the same time, the water consumption of the gas-turbine system is significantly lower than contemporary steam-cycle based solar thermal power plants.

Place, publisher, year, edition, pages
2015. Vol. 137, no 1
National Category
Energy Engineering
Research subject
Energy Technology
Identifiers
URN: urn:nbn:se:kth:diva-149667DOI: 10.1115/1.4028142ISI: 000348145600008Scopus ID: 2-s2.0-84906658625OAI: oai:DiVA.org:kth-149667DiVA: diva2:740638
Funder
Swedish Energy Agency
Note

QC 20140926

Available from: 2014-08-25 Created: 2014-08-25 Last updated: 2017-12-05Bibliographically approved

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