Dynamic Modeling of a Central Receiver CSP System in Modelica

Johan Edman
Department of Energy Sciences, F. Eng., Lund University, Sweden

Johan Windahl
Modelon AB, Ideon Science Park, Lund, Sweden

Ladda ner artikelhttp://dx.doi.org/10.3384/ecp15118585

Ingår i: Proceedings of the 11th International Modelica Conference, Versailles, France, September 21-23, 2015

Linköping Electronic Conference Proceedings 118:63, s. 585-594

Visa mer +

Publicerad: 2015-09-18

ISBN: 978-91-7685-955-1

ISSN: 1650-3686 (tryckt), 1650-3740 (online)


A dynamic model of the Solar Two test facililty has been implemented in Modelica. The model consists of a set of Central Receiver specific CSP components, along with a Rankine cycle to form a complete system. Main components include models of a sun, heliostat field, receiver, storage tank and a Rankine cycle including a steam generator. The components and the full system were tested in a series of simulations – both dynamically and during steady state conditions – and the results were compared to data from the reference system. The dynamic behavior of the models aligned with expectations, although time constants could not be evaluated due to lack of dynamic reference data. The steady state characteristics were adequate for most models, although some complementary work needs to be done on the Receiver model.


Modelica; Dymola; Dynamic modeling; Concentrated Solar Power; Central Receiver; Solar Salt; ThermalPower library


W. Churchill, H. H. S. Chu, "Correlating equations for laminar and turbulent free convection from vertical plate," Int. J. Heat. Mass. Tran. 18:1323-1329, 1975.

S. W. Churchill and M. Bernstein, "A Correlating Equation for Forced Convection From Gases and Liquids to a Circular Cylinder in Crossflow," Int. J. Heat. Mass. Tran. Trans. ASME 99, 1977, pp. 300-306.

J. A. Duffie and W. A. Beckman, "Solar Radiation" in Solar Engineering of Thermal Processes, 4th. Ed., Hoboken, New Jersey: Wiley, 2013, pp. 12-20.

J. Edman, "Dynamic Modeling of a Central Receiver CSP sytem in Dymola," M.S. thesis, Dept. En. Sci., Lund Univ., Lund, Sweden, 2014.

B. D. Ehrhart and D. D. Gill, "Evaluation of Annual Efficiencies of High Temperature Central Receiver Concentrated Solar Power Plants With Thermal Energy Storage," Sandia Nat. Lab., Albuquerque, NM, Rep. SAND2013-5493, Jul. 2013.

R. Ferri, A. Cammi and D. Mazzei, "Molten salt mixture properties in RELAP5 code for thermodynamic solar applications," Int. J. Therm. Sci. vol 47, 2008, pp. 1676-1687.

R. Forristal, "Heat Transfer Analysis and Modeling of a Parabolic Trough Solar Receiver Implemented in Engineering Equation Solver," NREL, Golden, CO, Rep. NREL/TP-550-34169, Oct. 2013.

T. Fujii, H. Uehara, "Laminar natural-convective heat transfer from the outer surface of a vertical cylinder," Int. J. Heat. Mass. Tran. 13:607-615, 1970.

GeoModel Solar, Typical Meteorological Year Data (Sample Data), GeoModel Solar, [Online], Available: http://geomodelsolar.eu/data/typical-meteorological-year, [Accessed: Feb. 2014].

R. W. Haywood, "Advanced steam-turbine plant" in Analysis of Engineering Cycles, 4th. Ed., Pergamon Press, 1991, pp. 110-115.

J. E. Pacheco, "Final Test and Evaluation Results from the Solar Two Project," Sandia Nat. Lab., Albuquerque, NM, Rep. SAND2002-0120, Jan. 2002.

M. J. Reno, C. W. Hansen and J. S. Stein, "Global Horizontal Irradiance Clear Sky Models: Implementation and Analysis," Sandia Nat. Lab., Albuquerque, NM, Rep. SAND2012-2389, Mar. 2012.

M. Thern, Lund University, F. Eng., Dept. En. Sci., private communication, Dec 2013.

Citeringar i Crossref