Abstract
This chapter introduces the notion of staggered grid scheme and explains how it can be used to implement the thermal hydraulics equations into component models. The staggered grid is made of two superimposed grids, the first implementing the mass and energy balance equations, and the second implementing the momentum balance equations. Components from each grid are then connected together via so-called connectors. Connections are made according to well defined rules in order to exchange the variables common to different balance equations so that the full state of the system can be computed. Several alternatives are possible for the structure of the connectors. The fundamental choices made for the structure of ThermoSysPro are given.
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References
Bouskela D (2016) Multi-mode physical modelling of a drum boiler, complex adaptive systems. Proc Comput Sci 95:516–523
Bouskela D, El Hefni B (2014) A physical solution for solving the zero-flow singularity in static thermal-hydraulics mixing models. In: Proceedings of the 10th international modelica conference, Lund, Sweden
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El Hefni, B., Bouskela, D. (2019). Implementation of the Fluid Equations into Component Models. In: Modeling and Simulation of Thermal Power Plants with ThermoSysPro . Springer, Cham. https://doi.org/10.1007/978-3-030-05105-1_17
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DOI: https://doi.org/10.1007/978-3-030-05105-1_17
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