Klein, PeterRoos, THSheer, TJ2015-10-122015-10-122015-08Klein, P, Roos, TH, and Sheer, TJ. 2015. Parametric analysis of a high temperature packed bed thermal storage design for a solar gas turbine. Solar Energy, Vol. 118, pp59-730038-092Xhttp://hdl.handle.net/10204/8167Copyright: 2015 Elsevier. This is the post-print version of the work. The definitive version is published in Solar Energy, Vol. 118, pp59-73.The development of a high temperature Thermal Energy Storage (TES) system will allow for high solar shares in Solar Gas Turbine (SGT) plants. In this research a pressurised storage solution is proposed that utilises a packed bed of alumina spheres as the storage medium and air from the gas turbine cycle as the heat transfer fluid. A detailed model of the storage system is developed that accounts for transient heat transfer between discrete fluid and solid phases. The model includes all relevant convective, conductive and radiative heat transfer mechanisms and is validated against high temperature experimental data from a laboratory scale test facility. The validated model is further utilised to conduct a parametric design study of a nominal six hour TES (1:55MW h(subth)) for a gas micro-turbine. The concepts of utilisation factor and storage efficiency are introduced to determine the optimal storage design. The results of the study indicate that a storage efficiency of 88% and utilisation factor of 85% can be achieved when combining thermal storage and hybridisation with fossil fuels.enConcentrating solar powerThermal storagePacked bedSensible heatGas turbinesThermal storageArticleKlein, P., Roos, T., & Sheer, T. (2015). Parametric analysis of a high temperature packed bed thermal storage design for a solar gas turbine. http://hdl.handle.net/10204/8167Klein, Peter, TH Roos, and TJ Sheer "Parametric analysis of a high temperature packed bed thermal storage design for a solar gas turbine." (2015) http://hdl.handle.net/10204/8167Klein P, Roos T, Sheer T. Parametric analysis of a high temperature packed bed thermal storage design for a solar gas turbine. 2015; http://hdl.handle.net/10204/8167.TY - Article AU - Klein, Peter AU - Roos, TH AU - Sheer, TJ AB - The development of a high temperature Thermal Energy Storage (TES) system will allow for high solar shares in Solar Gas Turbine (SGT) plants. In this research a pressurised storage solution is proposed that utilises a packed bed of alumina spheres as the storage medium and air from the gas turbine cycle as the heat transfer fluid. A detailed model of the storage system is developed that accounts for transient heat transfer between discrete fluid and solid phases. The model includes all relevant convective, conductive and radiative heat transfer mechanisms and is validated against high temperature experimental data from a laboratory scale test facility. The validated model is further utilised to conduct a parametric design study of a nominal six hour TES (1:55MW h(subth)) for a gas micro-turbine. The concepts of utilisation factor and storage efficiency are introduced to determine the optimal storage design. The results of the study indicate that a storage efficiency of 88% and utilisation factor of 85% can be achieved when combining thermal storage and hybridisation with fossil fuels. DA - 2015-08 DB - ResearchSpace DP - CSIR KW - Concentrating solar power KW - Thermal storage KW - Packed bed KW - Sensible heat KW - Gas turbines KW - Thermal storage LK - https://researchspace.csir.co.za PY - 2015 SM - 0038-092X T1 - Parametric analysis of a high temperature packed bed thermal storage design for a solar gas turbine TI - Parametric analysis of a high temperature packed bed thermal storage design for a solar gas turbine UR - http://hdl.handle.net/10204/8167 ER -