Alberto de La Calle
CIEMAT-Plataforma Solar de Almería, Tabernas, Spain
Luis J. Yebra
CIEMAT-Plataforma Solar de Almería, Tabernas, Spain
Sebastián Dormido
UNED, Escuela Tåcnica Superior de Ingeniería Informática, Madrid, Spain
Download articlehttp://dx.doi.org/10.3384/ecp12076941Published in: Proceedings of the 9th International MODELICA Conference; September 3-5; 2012; Munich; Germany
Linköping Electronic Conference Proceedings 76:98, p. 941-948
Published: 2012-11-19
ISBN: 978-91-7519-826-2
ISSN: 1650-3686 (print), 1650-3740 (online)
Falling film evaporators have demonstrated a good performance in air-conditioning and refrigeration. This paper presents the development of a detailed falling film evaporator model. The model is based on classical Newton’s viscosity law and Nusselt falling film theory. A library of evaporator components compatible with Modelica.Fluid; Modelica.Thermal and Modelica.Media has been implemented. The simulations presented have the expected behaviour. These models will be used to a complete model of a heat pump.
Falling film; evaporator; heat pump; dryout; simulation; object-oriented modeling
[1] D. C. Alarcón-Padilla; J. Blanco-Gálvez; L. García-Rodríguez; W. Gernjak; and S. Malato. First experimental results of a new hybrid solar/gas multi-effect distillation system: the AQUASOL project. Desalination; 220(1-3):619–625; 2008.
doi:
10.1016/j.desal.2007.05.027.
[2] D. C. Alarcón-Padilla; L. García-Rodríguez; and J. Blanco-Gálvez. Assessment of an absorption heat pump coupled to a multi-effect distillation unit within AQUASOL project. Desalination; 212(1-3):303–310; 2007.
doi: 10.1016/j.desal.2006.10.015.
[3] D. C. Alarcón-Padilla; L. García-Rodríguez; and J. Blanco-Gálvez. Experimental assessment of connection of an absorption heat pump to a multieffect distillation unit. Desalination; 250(2):500–505; 2010.
doi: 10.1016/j.desal.2009.06.056.
[4] G. Ribatski and A. M. Jacobi. Falling-film evaporation on horizontal tubes—a critical review. International Journal of Refrigeration; 28(5):635–653; 2005.
doi: 10.1016/j.ijrefrig.2004.12.002.
[5] G. Ribatski and J. R. Thome. Experimental study on the onset of local dryout in an evaporating falling film on horizontal plain tubes. Experimental Thermal and Fluid Science; 31(6):483–493; 2007.
doi: 10.1016/j.expthermflusci.2006.05.010.
[6] E. Zarza; J. Ajona; J. León; A. Gregorzewski; and K. Genthner. Solar thermal desalination project at the Plataforma Solar de Almeria. Solar Energy Materials; 24(1–4):608–622; 1991.
doi: 10.1016/0165-1633(91)90094-2.