Reference : Dynamic modeling of thermal systems using a semi-empirical approach and the ThermoCyc...
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Energy
http://hdl.handle.net/2268/184504
Dynamic modeling of thermal systems using a semi-empirical approach and the ThermoCycle Modelica Library
English
Altés Buch, Queralt mailto [Université de Liège - ULiège > > > 1re an. master ingé. civ. électro., à finalité]
Dickes, Rémi mailto [Université de Liège > Département d'aérospatiale et mécanique > Systèmes énergétiques >]
Desideri, Adriano mailto [Université de Liège > Département d'aérospatiale et mécanique > Systèmes énergétiques >]
Lemort, Vincent mailto [Université de Liège > Département d'aérospatiale et mécanique > Systèmes énergétiques >]
Quoilin, Sylvain mailto [Université de Liège > Département d'aérospatiale et mécanique > Systèmes énergétiques >]
Jun-2015
Proceedings of the 28th International Conference on Efficiency, Costs, Optimization and Simulation of Energy Systems
Yes
International
28th International Conference on Efficiency, Costs, Optimization and Simulation of Energy Systems
29 June ‐ 3 July 2015
Pau
France
[en] CSP ; Dynamic Modeling ; Modelica ; Lumped parameter ; ThermoCycle
[en] This paper proposes an innovative approach for the dynamic modeling of heat exchangers without phase transitions. The proposed thermo-flow model is an alternative to the traditional 1D finite-volumes approach and relies on a lumped thermal mass approach to model transient responses. The heat transfer is modeled by the well-known Logarithmic Mean Temperature Difference approach, which is modified to ensure robustness during all possible transient conditions. The lumped parameter models are validated with references models and tested within a Concentrating Solar Power plant model. Results indicate that the developed lumped models are robust and computationally efficient, ensuring the convergence of the Newton Solver. They are significantly faster (~10-fold) than the traditional finite volume models, although a more extensive comparisons would be needed to confirm this figure. They are well suited to be integrated in larger system models, but are not appropriate for the simulation of detailed thermo-flow phenomena.
IWT - Agency for Innovation by Science and Technology
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/184504
http://www.thermocycle.net

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