Thermal Energy Storage for Gas Turbine Power Augmentation

Gkoutzamanis, Vasilis G.; Chatziangelidou, Anastasia; Efstathiadis, Theofilos; Kalfas, Anestis I.; Traverso, Alberto; Chiu, Justin

doi:10.33737/gpps19-tc-072

Cited by 2 publications

(2 citation statements)

References 43 publications

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“…Solutions exist [5] such as integrating Heat Pump [6] and energy storage [7] in CC plants, so that the power plant is able to pick up excess energy during high renewable energy production and use it later when it is required.…”

Section: Introductionmentioning

confidence: 99%

Dynamic simulation of a combined cycle for power plant flexibility enhancement

2019

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System simulation is used in many fields to help design, control or troubleshoot various industrial systems. Within the PUMP-HEAT H2020 project, it is applied to a combined cycles power plant, with innovative layouts that include heat pumps and thermal storage to un-tap combined cycle potential flexibility through low-CAPEX balance of plant innovations. Simcenter Amesim software is used to create dynamic models of all subsystems and their interactions and validate them from real life data for various purpose. Simple models of the Gas Turbine (GT), the Steam loop, the Heat Recovery Steam Generator (HRSG), the Heat Pump and the Thermal Energy storage with Phase Change material are created for Pre-Design and concept validation and then scaled to more precise design. Control software and hardware is validated by interfacing them with detailed models of the virtual plant by Model in the Loop (MiL), Software in the Loop (SiL) and Hardware in the Loop (HiL) technologies. Unforeseen steady state and transient behaviours of the powerplant can be virtually captured, analysed, understood and solved. The purpose of this paper is to introduce the associated methodologies applied in the PUMP-HEAT H2020 project and their respective results.

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Section: Introductionmentioning

confidence: 99%

Dynamic simulation of a combined cycle for power plant flexibility enhancement

2019

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“…An extensive review work has been performed in [4], investigating the cooling methods used to provide GT power augmentation with particular focus on the merits of TES when combined with inlet cooling methods. Among the thermal energy storage systems, latent heat based phase change materials (PCM) show promising thermal energy storage density.…”

Section: Introductionmentioning

confidence: 99%

Thermal energy storage in combined cycle power plants: comparing finite volume to finite element methods

et al. 2019

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The research in thermal energy storage (TES) systems has a long track record. However, there are several technical challenges that need to be overcome, to become omnipresent and reach their full potential. These include performance, physical size, weight and dynamic response. In many cases, it is also necessary to be able to achieve the foregoing at greater and greater scale, in terms of power and energy. One of the applications in which these challenges prevail is in the integration of a thermal energy storage with the gas turbine (GT) compressor inlet conditioning system in a combined cycle power plant. The system is intended to provide either GT cooling or heating, based on the operational strategy of the plant. As a contribution to tackle the preceding, this article describes a series of 3-dimensional (3D) numerical simulations, employing different Computational Fluid Dynamics (CFD) methods, to study the transient effects of inlet temperature and flow rate variation on the performance of an encapsulated TES with phase change materials (PCM). A sensitivity analysis is performed where the heat transfer fluid (HTF) temperature varies from -7°C to 20°C depending on the operating mode of the TES (charging or discharging). The flow rate ranges from 50% to 200% of the nominal inflow rate. Results show that all examined cases lead to instant thermal power above 100kWth. Moreover, increasing the flow rate leads to faster solidification and melting. The increment in each process depends on the driving temperature difference between the encapsulated PCM and the HTF inlet temperature. Lastly, the effect of the inlet temperature has a larger effect as compared to the mass flow rate on the efficiency of the heat transfer of the system.

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Thermal Energy Storage for Gas Turbine Power Augmentation

Cited by 2 publications

References 43 publications

Dynamic simulation of a combined cycle for power plant flexibility enhancement

Dynamic simulation of a combined cycle for power plant flexibility enhancement

Thermal energy storage in combined cycle power plants: comparing finite volume to finite element methods

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