Generalized distributed state space model of a CSP plant for simulation and control applications: Single-phase flow validation

Americano da Costa, MV and Narasimhan, A and Guillen, D and Joseph, B and Goswami, DY (2020) Generalized distributed state space model of a CSP plant for simulation and control applications: Single-phase flow validation. In: Renewable Energy, 153 . pp. 36-48.

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Abstract

Concentrating solar thermal power plants, also known as CSP plants, can be of different configurations depending on type of collectors, temperatures, heat transfer fluid, working fluid, and the thermodynamic cycle used in the plant. This leads to complex behavior with nonlinear dynamics, potential instability and parameters that vary in both space and time. In this work, a distributed state space model is proposed to ensure computational flexibility and facilitate industrial applications, such as optimization, control and automation. The format used allows the model to represent the thermal dynamics at different operation points including phase changes (liquid or gas) along the spatial dimension. To validate the model, some experimental tests have been made on an operating solar thermal plant located at the University of South Florida, in United States, where real input disturbances were applied to compare measurements with model predictions. Preliminary results show good agreement with experimental observations. Literature data of water and steam properties were used in the model, that can be easily extended to direct steam generation (DSG) plants.

Item Type:	Journal Article
Publication:	Renewable Energy
Publisher:	Elsevier
Additional Information:	The copyright of this article belongs to Elsevier
Keywords:	Dynamic models; Fluid Power; Solar energy; Solar heating; State space methods; Thermodynamic properties; Thermoelectric power plants, Concentrating solar thermal power; Control and automation; Control applications; Direct steam generation; Experimental test; Potential instability; Simulation; Solar thermal energy, Working fluids, experimental study; heat transfer; model; optimization; parameter estimation; power plant; simulation; thermal power, Florida United States
Department/Centre:	Division of Mechanical Sciences > Centre for Sustainable Technologies (formerly ASTRA)
Date Deposited:	09 Mar 2020 06:50
Last Modified:	09 Mar 2020 06:50
URI:	http://eprints.iisc.ac.in/id/eprint/64757

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