Conference article

Modeling of a falling film evaporator

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/ecp12076941

Published in: Proceedings of the 9th International MODELICA Conference; September 3-5; 2012; Munich; Germany

Linköping Electronic Conference Proceedings 76:98, p. 941-948

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Published: 2012-11-19

ISBN: 978-91-7519-826-2

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

Abstract

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.

Keywords

Falling film; evaporator; heat pump; dryout; simulation; object-oriented modeling

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